BGS Lexicon - Full listing

Full listing of The British Geological Survey Lexicon of Named Rock Units

'S Airde Beinn Plug (Kingsteps) Nairn Sandstones [Obsolete: use KISA] ? Lateral Equivalent Of Glenfinnan Group ? Lateral Equivalent Of Morar Group 15/16-6 Sand Member [Obsolete: use CHNT] 1st Terrace Deposits (River Severn) [Obsolete: use PSTT] 1st Terrace Of River Lark (Bristow,1990) 22 Yard Coal (West Yorkshire) 25-Foot Drift Of Vale Of York 27 Yard Coal (West Yorkshire) 2nd Terrace Of River Cam 2nd Terrace Of River Lark (Bristow,1990) 32 Yard Coal (West Yorkshire) 36 Yard Coal (West Yorkshire) 36 Yard Rock 36 Yards Band Coal 3rd Terrace of River Cam [Obsolete: use HNRD] 3rd Terrace Of River Lark (Bristow,1990) 48 Yard Band Coal (West Yorkshire) 48 Yard Rock 4th Terrace of River Cam [Obsolete] 4th Terrace of River Lark [Obsolete: use FHAM] 5 Foot Vein [Obsolete: use 5FTC] 5th Terrace of River Lark [Obsolete: use ERIS] 6th Terrace (River Severn) [Obsolete: use SPHT] 80 Yard Band Coal 80 Yard Band Coal (West Yorkshire) 80 Yard Rock A variety of local names [Obsolete: use MPA] A'Mharagach Member A'Mhoine Psammite Formation [Obsolete: use ALPS] A-Bed Evaporite Abbey Conglomerate Abbey Gravel(s) Abbey Head Bed Abbey Head Formation [Obsolete: use ABH] Abbey Head Member [Obsolete: use ABH] Abbey Sand and Gravel Member Abbey Shale Formation Abbey Wood Member [Obsolete: use BLB] Abbeyhill Shales Abbotsbury Cornbrash Formation [Obsolete: use CB] Abbotsbury Iron Ore [Obsolete: use ABI] Abbotsbury Ironstone [Obsolete: use ABI] Abbotsbury Ironstone Formation Abbotsford Flags Abbotsford Flags and Grieston Shales Abbotsgrange Beds [Obsolete: use AGSI] Abbotsgrange Silt Member Abbotsham Beds [Obsolete: use BFF] Abbotsham Formation [Obsolete: use BFF] Abbrook Clay and Sand [Obsolete: use AB] Abbrook Clay and Sand Member Abdon Group [Obsolete: use FWW] Abdon Limestone Formation [Obsolete: use UAL] Abdy Coal (South Yorkshire and North Nottinghamshire) Abdy Rock Aber Geirch Phyllites And Grits Aber Mawr Beds [Obsolete: use ABMR] Aber Mawr Formation Aber Mawr Shale Formation Aber Pensidian Mudstone Member Abercastle Beds [Obsolete: use OGH] Aberchirder Pluton Abercorn Main Coal (Glasgow) Abercorn Rough Coal (Glasgow) Abercorn Splint Coal (Glasgow) Abercorn Steam Coal (Glasgow) Abercorn Stony Coal (Glasgow) Abercorn Turf Coal (Glasgow) Abercorris Group Abercriban Oolite [Obsolete: use ABO] Abercriban Oolite Formation [Obsolete: use ABO] Abercriban Oolite Group [Obsolete: use ABO] Abercriban Oolite Subgroup Abercwmeiddaw Group Aberdaron Bay Group [Obsolete: use NFR] Aberdaron Formation Aberdeen Division Aberdeen Formation Aberdeen Ground Beds [Obsolete: use ANG] Aberdeen Ground Formation Aberdeen Pluton Aberedw Formation Aberfoyle Slate [Obsolete: use DCAS] Aberfoyle Slate Formation Aberfoyle Slates [Obsolete: use DCLE] Abergeldie Pluton Abergorki Coal (South Wales) Abergwilli Formation Aberkenfig Formation Aberlady Formation Abersytwyth Grits Formation [Obsolete: use AGF] Aberystwyth Grits Group Abhainn Mhor Gabbro Intrusion Abington Formation [Obsolete: use KKF] Accerhill Sandstone Accerhill Sandstone Formation [Obsolete: use ACHS] Accrington Mudstone Acer Hill Sandstone [Obsolete: use ACHS] Ach'Uaine Cluster Achanarras Fish Bed Member Achanarras Limestone [Obsolete: use AFB] Achateny Breccia Member Achnacarry Striped Formation Achnaconeran Striped Formation Achnacree Sand and Gravel Formation Achnaha Quartz Gabbro Zone Achnaha Quartz-Monzonite Facies Achnaha Tonalite - Quartz-Monzonite Intrusion Achnaha Tonalite Facies Achneim Striped Formation Achray Sandstone [Obsolete: use LADG] Achreamie Sandstone Formation [Obsolete: use CKBA] Achrimsdale Sandstone Member Achscrabster Flagstone Formation [Obsolete: use ACFM] Achscrabster Flagstone Member Acklington Dyke Acklinton Formation Of Bowen (1999) Acklinton Till Formation Ackton Rock Ackworth Division [Obsolete: use ACKW] Ackworth Member Ackworth Rock Acre Coal (Northumberland) Acre Limestone [Obsolete: use TYL] Acton Group Acton Park Limestone Acton Scott Formation Acton Scott Group [Obsolete: use ASGP] Acton Scott Limestone Acton Turville Beds Acuminata Beds Acutistriatum Band [Obsolete: use ACCO] Acutistriatum Bed [Obsolete: use ACCO] Acutistriatum-Comptoni Bed Adail Mudstones Formation Adamson Band Addingham Edge Grit Addingham High Moor Grit [Obsolete: use AE] Addlethorpe Grit Addlethorpe Marine Band Adur Valley Formation Adwalton Black Bed Coal (West Yorkshire) Adwalton Stone Coal Aed Mheall Member (Western Intrusion, Rum Layered Suite) Aegiranum Marine Band Aeolian deposits Afon Gam Formation [Obsolete: use DYN] Afton Formation [Obsolete: use KKF] Afton Lodge Clay Formation Aghyaran Formation Agill Sandstone Agill Shale Agneash Grit (Manx Slates) [Obsolete: use CGA] Agneash Grits [Obsolete: use MHL] Agnew's Hill Tuff Member Agricultural Cutting Aid Crag Sandstone Aikbank Farm Glacigenic Formation Ailleag Diamicton Formation Ailleag Diamicton Member [Obsolete: use AILL] Ailnack Phyllite And Limestone Formation Ailsa Craig Microgranite Ailstone Bed Ailstone Member [Obsolete: use CRTD] Ailstone Terrace Deposits (Warwickshire Avon) [Obsolete: use AILT] Airdrie Blackband Coal (Central Coalfield) Airdrie Blackband Ironstone (Central Coalfield) Airdrie Virtuewell Coal (Central Coalfield) Airfield Airth Shellband Airy's Bridge Formation [Obsolete: use AIB] Airy's Bridge Group [Obsolete: use AIB] Airy's Bridge Tuff Formation Aisholt Limestone Aisla Formation Aisla Sequence [Obsolete: use AIS] Aislaby Group [Obsolete: use ZG] Aith - Spiggie Pluton Akers Steps and St Margarets Members [Obsolete: use LECH] Albany Division [Obsolete: use ALBY] Albany Group Albany Mudstones with Limestone Nodules [Obsolete: use GSE] Alberbury Breccia Albert Coal (Rothbury Area) [Obsolete: use YARD] Albian Rocks (Undifferentiated) Albion Glacigenic Group Albion Sands Formation Albrighton Coal (Cumbria) Albrighton Coal Group [Obsolete] Albrighton Marine Band [Local Name: see AMMB] Albrighton Seam (Cumbria) [Obsolete: use ALBN] Aldeburgh Member Aldeby Sand and Gravel Member Aldeby Sands and Gravels [Obsolete: use ASAG] Alderbury Breccia in Erbistock Beds [Obsolete: use ABBR] Alderney Sandstone Alderwood Mudstone Alderwood Mudstone Member [Obsolete: use AMM] Aldie Till Member Aldress Shale [Obsolete: use ADSH] Aldress Shale Formation Alecks Coal (Lothian) Alecs Coal (Cheadle) Alkaid Member Alkaline basic igneous rocks in the Orkneys [Obsolete: use DSV] Alla Glen Limestone Member Allargue Graphitic Schist Member Allens Coal (East Midlands) Allenton Sand and Gravel Member Allenton Terrace Deposits Aller Gravel [Obsolete: use AGR] Aller Gravel Formation Aller Halite Formation Allermuir Group [Obsolete: use ALMR, CPW] Allermuir Volcanic Member Allesley Conglomerate [Obsolete: use AYC, ASY] Allesley Member Allesley Sandstones And Conglomerates Alloa Cherry Coal Alloa Splint Coal Allt a' Mhuilinn Mudstone Formation Allt A'Chuirn Quartzite Member Allt A'Mhuilinn Pseudoleucite-Syenite And Associated Rocks Allt An T-Srathain Member Allt an t-Strathain Till Member Allt And Odhar Members Of The Allt Odhar Formation Of Bowen 1999 Allt Breac Beds Allt Crom Complex Allt Crom Granodiorite With Rafts Dominantly Of Appinitic Diorite Allt Crom Granodiorite With Rafts Of The Coire Nan Laogh Semipelite Formation Allt Crom Granodiorite With Rafts Of The Garva Bridge Psammite Formation Allt Crom Granodiorite With Rafts Of The Loch Laggan Psammite Formation Allt Crom Granodiorite With Rafts Of The Monadhliath Semipelite Formation Allt Crom Pluton [Obsolete: use ALCR] Allt Darrarie Intrusion Allt Ddu Mudstone Formation [Duplicate: use ADM] Allt Ddu Mudstones [Obsolete: use ADM] Allt Ddu Mudstones Formation [Obsolete: use CSW] Allt Dhub Member Allt Dregnie Phyllite Member Allt Fawr Rhyolitic Tuff Formation Allt Goch Sandstone Formation Allt Goibhre Semipelite Formation Allt Lwyd Formation Allt Mor Na H-Uamha Member Allt na Beiste Member Allt Na Cuile Sandstone Member Allt Na H'Ath Siltstones [Obsolete: use SXS] Allt na h-Airbhe Member Allt Nam Biorag Psammite Member Allt Odhar Peat Formation [Obsolete: use AOPT] Allt Odhar Peat Member Allt Sgiathaig Till Member [Obsolete: use ASGL] Allt-Tair-Ffynnon Formation Allt-Tair-Ffynnon Formation And Nod Glas Formation (Undifferentiated) Allt-Y-Clych Conglomerate Formation Allt-Y-Clych Conglomerate Member (Form Facies) [Obsolete: use ACC] Alluvial and Glacial Deposits (Undifferentiated) Alluvial and glacial drift (undifferentiated) [Obsolete: use ALGD] Alluvial cone [Obsolete: use ALF] Alluvial delta [Obsolete: use ALF] Alluvial deposits and peat [Obsolete: use SLEV] Alluvial deposits, buried, postglacial estuarine-marine [see descriptions for limitations of use] Alluvial deposits, postglacial, terrestrial [see descriptions for limitations of use] Alluvial fan [Obsolete: use ALF] Alluvial fan deposits Alluvial fan deposits, 1 Alluvium Alluvium and alluvial fan deposits (undifferentiated) Alluvium and river terrace deposits (undifferentiated) Alluvium, 1 Alluvium, 2 Almscliff Grit [Obsolete: use WWG] Alne Glacial Lake Formation [Obsolete: use ALNE] Alne Glaciolacustrine Formation Alne Hills Mudstone Bed [Obsolete] Alness Member [Obsolete: use ALNS] Alness Spiculite Formation [Obsolete: use ALNS] Alness Spiculite Member Alpha Coal (North Wales) Alpha Rider Coal (North Wales) Alphington Breccia Formation Alphington Breccia Formation and Heavitree Breccia Formation (Undifferentiated) Alphington Breccia Member [Obsolete: use ALBR] Alphington Breccias [Obsolete: use ALBR] Alport Sandstone Alston Formation Alstonfield Limestone [Obsolete: use BLL] Altagoan Formation Alteen Shale Member Altena Group Alternata Limestone [Obsolete: use ALT] Alternata Limestone Formation Altmore Formation Altmore Schists [Obsolete] Altnacealgach Alkali Feldspar-Syenite Altnaharra Psammite Formation Alton Coal (Leicester, Nottingham, Derby) Alton Marine Band [Local Name: see LSMB] Altonside Till Formation Alturlie Gravels Formation Alum Crag Grit Alum Rock [Obsolete: use AMSH] Alum Shale (Of The Glasgow Area) Alum Shale [Obsolete: use AMSH] Alum Shale Member Alum Shale Series [Obsolete: use AMSH] Alveley Member Alves Beds [Obsolete: use ALB] Alves Formation Am Binnein Formation Am Binnein Sandstone Formation Am Binnein Sandstones Formation [Obsolete: use ABN] Amaliae Marine Band Ambaston Gravel Member Ambaston Member [Obsolete: use HETD] Amethyst Member Amlwch Beds Amman Marine Band [Local Name: see VDMB] Amman Rider Coal (South Wales) Amman Rider Coal, Seven-Feet Coal And Yard Coal (Undifferentiated) (South Wales) Ammonite and Belemnite Bed [Obsolete: use LECK] Ammonites Planorbis Beds [Obsolete: use WCT] Amphibolite (Of Guernsey And Sark) Amphibolite And Calcsilicate-Rock Of Uncertain Origin Amphibolite Of Uncertain Origin Ampthill Clay [Obsolete: use AMC] Ampthill Clay Formation Ampthill Clay Formation and Kimmeridge Clay Formation (Undifferentiated) Ampthill Clay Formation and West Walton Formation (Undifferentiated) [Duplicate: use WWAC] Amundsen Formation Amundsen Sub-Unit [Obsolete: use AMND] An Sithean Granite An Socach Quartzite Formation An Socach/Cairnwell Quartzite An Stac Semipelite and Psammite Formation An T-Sron Formation An Tamhanachd Member An Tamhanachd Member And Beannan Buidhe Member (Undifferentiated) An Torran Pelite Anabacia Limestones Ancaster Beds [Obsolete] Ancestral Thames River Terrace Deposits (Undifferentiated) Ancholme Clay Group [Obsolete: use AMG] Ancholme Group Ancient Boundary Structure Ancient Building Ancient Burial Ground Ancient Cultivation Area Ancient Disturbed Ground Ancient Embankment Ancient Enclosure Ancient Fill Ancient Mineral Working Ancient Road or Trackway Ancient Waste Tip Ancient Water Management Feature Ancliff Oolite Andesite (Uriconian Group) [Obsolete: use UO] Andesite and Dacite Groups [Obsolete: use BFA] Andrew Sandstone unit Andrews Coal (Lothian) Angulata Beds [Obsolete: use SASH] Angulata Clays [Obsolete: use SMD, BNBM] Angulatum Clays [Obsolete: use BNBM] Angus Sands [Obsolete: use FLMR, HUGI] Anker Sand And Gravel Annaclare Group Annagher Coal (Dungannon) Annandale Sandstone [Obsolete: use ANSA] Annandale Sandstone Bed [Obsolete: use ANSA] Annandale Sandstone Beds Annandale Sandstone Member [Obsolete: use ANSA] Annat Bay Formation Annie Formation Annie Sequence [Obsolete: use ANNE] Ansdell Mudstone Member Anstruther Beds [Obsolete: use ARBS] Anstruther Formation Anthracoceras paucilobum Marine Band Anthracoceratites Marine Band Antrim Lava Group Anvil Limestone Aonach Beag Semipelite Formation Apestor Limestone [Obsolete: use ECL] Apestor Limestones [Obsolete: use ECL] Appin Group Appin Group And Argyll Group (Undifferentiated) Appin Limestone Member Appin Phyllite and Limestone Formation Appin Quartzite [Obsolete: use MEDQ] Appin Quartzite Formation Appin Transition Formation Appinite Suite Appleby Group Appleby Group, Stewartry Group And Permian Sedimentary Rocks (Undifferentiated) Applecross Formation Applecross Subswarm Appledore Formation [Obsolete: use CKF] Applethwaite Beds [Obsolete: use AP] Applethwaite Formation [Obsolete: use AP] Applethwaite Group [Obsolete: use AP] Applethwaite Member Applethwaite Series [Obsolete: use AP] Appleton Ell Coal Appletree Limestone Appletree-Worth Sandstone Appletreeworth Volcanic Formation Approximately Equivalent To The Monograptus Leintwardinensis Shales. Aptian And Albian Rocks (Undifferentiated) Aqueduct Coal (North Wales) Aqueduct Grit [Obsolete: use GS] Aqueduct Rock [Obsolete: use OPS] Aran Boulder Bed Member Aran Fawddwy Formation Aran Fawddwy Formation [Duplicate: use AFM] Aran Volcanic Group Arbigland Beds [Obsolete: use ARLM] Arbigland Group [Obsolete: use ARLM] Arbigland Limestone Formation [Obsolete: use ARLM] Arbigland Limestone Member Arbigland Member [Obsolete: use ARLM] Arbikie Diamicton Member Arbriachan Intrusion Arbroath Formation [Obsolete: use AHS] Arbroath Sandstone [Obsolete: use AHS] Arbroath Sandstone Formation [Obsolete: use AHS] Arbroath Sandstone Member Arbroath Sandstones [Obsolete: use TEF] Arbuthnott Group [Obsolete: use ATGK] Arbuthnott-Garvock Group Arbuthnott-Garvock Group And Strathmore Group (Undifferentiated) Arch Farm Sandstone Formation Archaean And Proterozoic Rocks (Undifferentiated) Archaean Rocks (Undifferentiated) Archaeological Excavation (Undivided) Archaeological Raised Ground (Undivided) Arched Mine Coal Archerbeck Beds Archerbeck Coal (Canonbie) Archerbeck Limestone Formation [Obsolete: use AKB, TYLS] Archerbeck Ochre Bed Archiestown Pluton Arcow Formation [Obsolete: use CDW] Arctic Freshwater Bed Ard Mheall Member (Western Intrusion, Rum Layered Suite) [Duplicate: use RLW3] Ardair Semipelite Formation Ardalanish Striped Formation Ardara Pluton Ardara Pluton Phase 1 Ardara Pluton Phase 2 Ardara Pluton Phase 3 Ardassie Limestone Member Ardclach Granite Pluton Ardclach Pluton [Obsolete: use ADCL] Arden Limestone [Obsolete: use CAL] Arden Sandstone [Obsolete: use AS] Arden Sandstone Formation Arden Sandstone Group [Obsolete: use AS] Arden Sandstone Horizon [Obsolete: use AS] Arden Sandstone Member [Obsolete: use AS] Ardersier Silts Formation Ardgour Granite Gneiss Ardingly Sandstone [Obsolete: use ARS] Ardingly Sandstone Member Ardleigh Member Ardley Beds [Obsolete: use SHIP] Ardley Beds and Bladon Beds [Obsolete: use ARDY] Ardley Member Ardmillan Group Ardmillan Group (lower part) [Obsolete: use AMN] Ardmillan Group (upper part) [Obsolete: use AMN] Ardmillan Group, Albany Group And Barr Group (Undifferentiated) Ardmillan Series [Obsolete: use AMN] Ardmore Conglomerate Member Ardmore Formation Ardmore Grit [Obsolete: use DBAG] Ardmore Grit Formation [Obsolete: use ARDM, ARDG, ARDC] Ardmore Grit Member Ardnamona Sandstone Formation Ardnamurchan Central Complex Ardnamurchan Centre 1 Ardnamurchan Centre 2 Ardnamurchan Centre 3 Ardnamurchan Dyke-Swarm Ardnamurchan Point Gabbro Ring Intrusion Ardnandave Sandstone Formation Ardnave Phyllite And Greywacke Formation Ardnish Formation Ardnish Formation And Breakish Formation (Undifferentiated) Ardrishaig Phyllite [Obsolete: use DBAP] Ardrishaig Phyllite Formation Ardrishaig Phyllites Ardross Lingula Band Ards Black Schist Ards Quartzite Ardscalpie Formation Ardtrea Sill Ardtun Beds Ardullie Silt Formation Ardvarney Limestone Member Ardverikie Till Formation Ardvreck Group Ardwell Beds, Middle [Obsolete: use ARD] Ardwell Bridge Basic Volcanic Member Ardwell Bridge Lavas [Obsolete: use LYBV] Ardwell Farm Formation Ardwell Flags [Obsolete: use ARD] Ardwell Flags Formation (Topmost Beds) Ardwell Formation [Obsolete: use ARD] Ardwell Group [Obsolete: use ARD] Ardwell Subgroup Ardwick Formation [Obsolete: use ARG] Ardwick Group [Obsolete: use WAWK] Ardwick Limestones [Obsolete: use HA] Ardwick Marl(s) [Obsolete: use ETM] Arenaceous Coal Formation [Obsolete: use PES] Arenaceous Limestone [Obsolete: use MRF] Arenaceous Series [Obsolete: use ERSA] Arenig And Llanvirn Rocks (Undifferentiated) Arenig Ballantrae Volcanic Complex (assumed to be part of) [Obsolete: use CRV] Arenig Rocks (Undifferentiated) Arenig To Llandeilo Rocks (Undifferentiated) [Obsolete In Its Original Sense] Arfon Group Argill Marine Band [Local Name: see LSMB] Argillaceous Series [Obsolete: use ANSH] Argoed Limestone Member Argyle Drift Coal (Somerset) Argyll And Northern Highlands Granitic Suite Argyll Carbonate Member Argyll Group Arisdale Quartzite Member Arley And Exhall Sandstones Arley Coal (South Lancashire) Arley Conglomerate [Obsolete: use ARSA] Arley Mine Coal [Obsolete: use ARMC] Arley Sandstone [Obsolete: use ARSA] Armadale Ball Coal (Central Coalfield) Armadale Ball Fireclay Armadale Coxrod Coal Armadale Main Coal (Central Coalfield) Armadale Slatyband Ironstone Armadale Splint Coal Armadale Stinking Coal Armadale Upper Ball Coal Armadale Upper Cannel Coal (Central Coalfield) Armagh Group Armathwaite Dyke Armathwaite-Cleveland Dyke Armboth Dyke Armisdale Psammite [Obsolete: use MAAP] Armsheugh Member Armsheugh Sand and Gravel Formation Arnage Pluton Arnbath Psammite Formation Arngrove Spiculite Member Arngrove Stone [Obsolete: use AGSP] Arnhash Till Member Arnisdale Psammite Member Arniston Parrot Coal (Lothian) Arran Central Complex Arran Northern Granite (Inner Granite) Arran Northern Granite (Outer Granite) Arthur's Seat Volcanic Formation Arthur's Seat Volcanic Rocks [Obsolete: use ASV] Artificial Lagoon (Undivided) Artificial Pond or Artificial Lake Artificially modified ground Artificially Subsided Ground [Obsolete: use DDGR] Aruisg Psammite Formation Arun Formation Arun Member [Obsolete: use ARUN] Arun River Terrace Deposits, 2 Member and Arun River Terrace Deposits, 3 Member, Undifferentiated Arun River Terrace Deposits, 3 Member and Arun River Terrace Deposits, 4 Member, Undifferentiated Arun River Terrace Deposits, 4 Member and Arun River Terrace Deposits, 5 Member, Undifferentiated Arun Terrace Deposits, 1 Member Arun Terrace Deposits, 2 Member Arun Terrace Deposits, 2a Member Arun Terrace Deposits, 2b Member Arun Terrace Deposits, 3 Member Arun Terrace Deposits, 4 Member Arun Terrace Deposits, 5 Member Arun Terrace Deposits, 6 Member Arun Terrace Deposits, 7 Member Arun Terrace Deposits, Facet 2a [Obsolete: use AR2A] Arun Terrace Deposits, Facet 2b [Obsolete: use AR2B] Arundel Sponge Beds Arvonian [Obsolete: use ARN] Arvonian Formation [Obsolete: use ARN, TWTH] Aryleive Limestone Bed Asaphus Ash Formation Ascog Member Asfordby Volcanic Formation Ashbank Sandstone Member Ashbourne Gravel Ashclough Coal (South Lancashire) Ashclough Marine Band [Local Name: see MTMB] Ashclough Mine Coal [Obsolete: use ASHC] Ashcombe Gravel Member Ashdown Beds [Duplicate: use AN] Ashdown Beds [Obsolete: use ASD] Ashdown Formation Ashdown Sand(s) [Obsolete: use ASD] Ashfell Limestone Formation Ashfell Sandstone [Obsolete: use AFS] Ashfell Sandstone Formation Ashfield Coking Coal (Central Coalfield) Ashfield Rider Coal Ashford Beds [Obsolete: use EYL] Ashford Sand and Gravel Ashgate Coal (South Yorkshire, Nottingham and Derby) Ashgate Leaf 1 (Ollerton) Ashgate Lower Leaf Coal (Derby) Ashgate Upper Leaf Coal (Derby) Ashgill Formation Ashgill Rocks (Undifferentiated) Ashgill Shale Formation [Obsolete: use AHL] Ashgill Shales [Obsolete: use AHL] Ashington Coal (Northumberland) Ashington High Main Coal (Northumberland) [Obsolete: use ASHN] Ashness Tuff Member Ashover Coal Ashover Grit (Main Bed) Ashover Grit [Obsolete: use COG] Ashow Formation Ashow Group [Obsolete: use AW] Ashprington Volcanic Formation Ashprington Volcanic Series [Obsolete: use AVS] Ashton Formation [Obsolete: use ANSH, DHLS] Ashton Great Coal (Bristol Area) Ashton Great Coal (South Lancashire) Ashton Great Mine Coal [Obsolete: use AGCO] Ashton Little Coal (Bristol Area) Ashton Mudstone Member Ashton Mudstone Member And Crackington Formation (Undifferentiated) Ashton Shale Member [Obsolete: use ANSH] Ashton Top Coal (Bristol Area) Ashton Vale Marine Band [Local Name: see SBMB] Ashton Vale Marineband [Obsolete] Ashy Cleugh Limestone Askham Limestone [Obsolete: use ASKL] Askham Limestone Member Assapol Group [Obsolete: use GLEN] Assel Conglomerate [Obsolete: use ASC] Assel Conglomerate Member Assynt Glacigenic Formation Assynt Hornblende Microdiorite Swarm Assynt Meta-Olivine Gabbro Subswarm [Obsolete: use SMOG] Assynt Meta-Olivine Subswarm [Obsolete: use SMOG] Assynt Metapicrite Subswarm [Obsolete: use BMP] Assynt Porphyritic Trachyte Swarm Assynt Till Formation [Obsolete: use ASGL] Assynt Vogesite Swarm Asta Spilite Group [Obsolete: use ASSP] Asta Spilitic Formation Asta Spilitic Formation [Duplicate: use ASSP] Asta Spilitic Group [Obsolete: use ASSP] Astarte Bed Astbury Formation Astbury Limestone [Obsolete: use BOWO] Astbury Limestone Member Astbury Sandstone Member Astbury-Limestone-Shales [Obsolete: use AYLS] Astell Coal (South Wales) Aston Beds [Obsolete: use AST] Aston Coal (Oxfordshire) Aston Limestone Formation Aston Mudstone Formation Athais Till Formation Athelstan Oolite Formation Athelstaneford Sill Atherfield Clay 'Group' [Obsolete: use AC] Atherfield Clay [Obsolete: use AC, CECL] Atherfield Clay Formation Atherfield Clay Formation And Weald Clay Formation (Undifferentiated) Atherfield Clay sensu Fitton (1847, p. 296 part of Bed 3) [Obsolete: use CECL] Atherfield Clay Series [Obsolete: use AC] Atherfield Group [Obsolete: use AC] Atkinson and Fordingdale Ignimbrite Group [Obsolete: use WLT] Atlantean Supersuite Auch Gleann Psammite Formation Auchencar Burn Sandstone Member Auchencar Burn Sandstones [Obsolete: use AUSA] Auchencar Burn Sandstones Formation [Obsolete: use ABS] Auchencar Lava [Obsolete: use AULA, AUSA] Auchencar Lava Member Auchencar Sandstone Formation Auchencrow Burn Formation [Obsolete: use AUCR] Auchencrow Burn Sandstone Formation Auchenheath Dross Coal Auchenheath Smithy Coal Auchenheath Wee Gas Coal Auchenhew Beds [Obsolete: use AHM] Auchenhew Mudstone Formation Auchensoul Bridge Mudstone Formation Auchensoul Limestone Formation Auchenwinsey Member Auchenwinsey Till Member Auchineden Lava Member Auchineden Lavas [Obsolete: use ACLA] Auchingree Four Inch Coal Auchinlea Sandstone Auchivarie Psammite Formation Auchleuchries Sand and Gravel Formation Auchlyne Formation Auchmeddon Gravel [Obsolete: use AMNGR] Auchmeddon Gravel Formation [Obsolete: use AMNGR] Auchmeddon Gravel Member Auchmeddon Member [Obsolete: use AMNGR] Auchmithie Conglomerate Formation [Obsolete: use ACO] Auchmithie Conglomerate Member Auchnacloy Sandstone Member [Obsolete: use ACSF] Auchnahillin Monzonite Auchnahyle Formation Auchtitench Formation [Obsolete: use AUC] Auchtitench Sandstone Formation Aughnacloy Sandstone Formation Aughnacloy Sandstone Member [Obsolete: use ACSF] Auglish Sandstone Member Auk Formation Auldearn (Park) Pluton [Obsolete: use AULD] Auldearn Granite Pluton Auldshields Blackband Auldshields Musselband (Central Coalfield) Auldthorns Formation Aulrothie Sandstone Member Aultbea Formation Aurora Formation Austwick Flags and Grits [Obsolete: use ARF, AUF] Austwick Formation Austwick Formation And Arcow Formation (Undifferentiated) Aveley Member Aveline's Hole Limestone Avicula Ironstone Seam Avill Group [Obsolete: use ASS] Avill Slates And Sandstones Member Avoch Sandstone Member Avon Fifth Terrace (Deposits) [Obsolete: use PERT] Avon Fifth Terrace Deposits [Obsolete: use STRSG] Avon First Terrace (Deposits) [Obsolete: use BRET] Avon Fourth Terrace (Deposits) [Obsolete: use CRTD] Avon Group Avon Second Terrace (Deposits) [Obsolete: use WAT] Avon Third Terrace Deposits [Obsolete: use NIT] Avon Valley Formation [Obsolete: use AVON] Avoniel Anhydrite [Obsolete] Avoniel Limestone Avonmouth No.1 Coal Avonmouth No.2 Coal Awre Formation [Obsolete: use WLLEV] Axe Valley Formation Aycliff Member [Obsolete: use NPCH] Aydon Shell Bed Aylesbeare Group [Obsolete: use AYB] Aylesbeare Mudstone Formation [Obsolete: use AYB] Aylesbeare Mudstone Group Aylesbury Sand Aymestry Group Aymestry Limestone Formation Aymestry Rock [Obsolete: use AL] Ayr Diamond Coal Ayr Ell Coal Ayr Extra Coal Ayr Forty Fathom Coal Ayr Hard Coal (Ayrshire) Ayr Jewel Coal (Ayrshire) Ayr Major Coal Ayr Thirty Six Fathom Coal Ayr Twenty Fathom Coal Ayr Twenty Three Fathom Coal Ayre Formation Ayre Lighthouse Formation Ayrshire Basanitic And Foiditic Plugs And Vents Ayrshire Bauxitic Clay [Obsolete: use ABC] Ayrshire Bauxitic Clay Formation [Obsolete: use ABC] Ayrshire Bauxitic Clay Member B-Bed Evaporite Babbacombe Slates Backet'S Copse Gravel Member Backfolds Palaeosol [Obsolete: use FSLCK] Bacton Green Till Member Bacton Group Bacton Member Bad An Loin Quartzite Member Bad Na H-Achlaise Ultramafic Rocks Bad Step Tuff Bad Step Tuff Member [Obsolete: use BDP] Badanloch Granite Sheets Badbea Breccia [Obsolete: use BAB] Badbea Breccio-Conglomerate Member Badcall Meta-Clinopyroxene-Norite Subswarm Badcallian (Kylesku Group) [Obsolete] Baddinsgill Mudstone Member Baddoch Burn Dolomite [Obsolete: use MEDL] Baddoch Burn Limestone Member Baddoch Burn Limestone Member [Duplicate: use BADL] Baddoch Burn Member [Obsolete: use BADL] Baddoch Burn Pelite Formation Baddoch Quartzite Member Baddock Till Member Badenloch Pelite Member [Obsolete: use LOCE] Badenoch Group Badentinan Sand Bed Badenyon Schist And Limestone Formation Badsworth Division [Obsolete: use BADS] Badsworth Member Badsworth Rock Baggy and Marwood Beds [Obsolete: use BYS] Baggy and Marwood Slates [Obsolete: use BYS] Baggy Beds [Obsolete: use BYS] Baggy Sandstones Formation Bagh Na H-Uamha Shale [Obsolete: use TCDL, TCAM] Baginton Sand [Obsolete: use BGSG] Baginton Sand and Gravel [Obsolete: use BGSG] Baginton Sand and Gravel Formation Baginton-Lillington Gravel [Obsolete: use BGSG] Bagshot Beds [Obsolete: use BGS, BRB] Bagshot Beds and Bracklesham Beds (Undifferentiated) [Obsolete] Bagshot Formation Bagshot Formation, Bracklesham Group, Barton Group, Becton Sand Formation And Chama Sand Formation (Undifferentiated) Bagshot Pebble Bed Bagshot Sands [Obsolete: use BGS] Bagworth Marine Band [Local Name: see VDMB] Bail Hill Volcanic Group Bail Hill Volcanic Group [Duplicate: use BAIL] Bailey Hill Formation Bailey Hill Formation [Duplicate: use BAI] Bailey's Beds Baillieston Member [Obsolete: use BNTI] Baillieston Till Formation Baily's Hill Flint Bain Valley Formation Bakewell Formation Bala [Obsolete] Bala Limestone [Obsolete: use CY] Bala Volcanic Series [Obsolete] Balachuirn Sandstone Member Balbardie Blackband Ironstone Balbardie Gas Coal Balblair Intrusion Balby Formation Balchraggan Formation Balclatchie Beds [Obsolete: use PMP, BCH] Balclatchie Conglomerate [Obsolete: use BCH, BUN] Balclatchie Formation Balclatchie Formation, Ardwell Formation And Whitehouse Formation (Undifferentiated) Balclatchie Group [Obsolete: use BCH] Balclatchie Mudstones [Obsolete: use BCH, PMP] Balcomie Beds Balcomie Beds (Fife) [Obsolete: use CYD] Balcreuchan Group Balcreuchan Group (correlated with, but not named) [Obsolete: use BRNL] Balcreuchan Group, part of Arenig Volcanic Complex (correlated with, but no sp) [Obsolete: use BRNL] Balder Formation Baldernock Limestone Balderton Member [Obsolete: use BDTN] Balderton Sand and Gravel [Obsolete: use BDTN] Balderton Sand and Gravel Member Balfreish Microgranite Balgaverie Member Balgrochan Beds Baligill Limestone Member Balintober Intrusion Balintore Formation Ball Coal (Midlothian) Ballachulish Group [Obsolete: use DABH] Ballachulish Limestone [Obsolete: use DABL, MEDL] Ballachulish Limestone Formation Ballachulish Pluton Ballachulish Slate [Obsolete: use MEDS, DASL] Ballachulish Slate Formation Ballachulish Subgroup Ballachulish Subgroup And Blair Atholl Subgroup (Undifferentiated) Balladoole Formation Ballagan Beds [Obsolete] Ballagan Cementstone Formation [Obsolete: use BGN] Ballagan Formation Ballagan Formation, Clyde Sandstone Formation And Strathclyde Group (Undifferentiated) Ballagan Formation, Clyde Sandstone Formation, Strathclyde Group And Clackmannan Group (Undifferentiated) Ballagan Formation, Clyde Sandstone Formation, Strathclyde Group and Lower Limestone Formation (Undifferentiated) Ballagh Limestone Member Ballanayre Slump Breccia Ballantrae Breccia Formation [Obsolete: use PKE] Ballantrae Complex Ballantrae Group [Obsolete: use BX] Ballantrae Igneous Complex [Obsolete: use BX] Ballantrae Igneous Series [Obsolete: use BX] Ballantrae Ophiolite [Obsolete: use BX] Ballantrae Ophiolite Complex Ballasalla Beds Ballasalla Formation [Obsolete: use DBH] Ballater Pluton Ballaugh Formation Ballbrook Sandstone Member [Obsolete: use BES] Balleich Lava Member Ballencleuch Law Granite Balleys Beds Ballinamallard Formation [Obsolete: use BLM] Ballinamallard Mudstone Formation [Obsolete: use SHAN] Balling Coal Ballintoy Chalk Formation Ballintoy Chalk Member [Obsolete: use BTC] Balloch Clay Member Balloch Formation [Obsolete: use BOCH] Balloch Member [Obsolete: use BOCH] Balls Coal (South Wales) Ballyagen Formation Ballyalicock Conglomerate Formation Ballyalton Sill Ballyboley Halite Ballycastle Chalk Formation Ballycastle Chalk Member [Obsolete: use BCCK] Ballycastle Pellet Chalk [Obsolete] Ballycastle Sandstone Group Ballycastle White Limestone (lower part) [Obsolete: use PCC] Ballycastle White Limestone (upper part) [Obsolete: use BCCK] Ballycraigy Plug [Obsolete] Ballycultra Formation Ballydurnian Breccia Formation Ballygalley Head Plug Ballygawly Gneiss Ballygomartin Sill Ballygrant Formation Ballygrant Limestone [Obsolete: use DABG] Ballykelly Formation Ballylagan Member Ballyleighery Formation Ballyloughan Formation Ballymagarry Chalk Formation Ballymagarry Chalk Member [Obsolete: use BMC] Ballymaglin Shale Member Ballymartin Member Ballymastocker Formation Ballymoney Formation Ballynahone Micrite Formation Ballyness Formation Ballyrainey Sill Ballyreagh Conglomerate Formation Ballyshannon Limestone Formation Ballysteen Formation Ballytober Sandstone Formation Ballytrea Formation Ballyvoy Coals Ballyvoy Sandstone Formation Balmae Grits Balmakeith Till Member Balmeanach Silt Formation Balmoral Index Coal Balmoral Sandstone unit Balmoral Tuffite unit Balmore Marine Band Balnacraig Metabasite Member Balnagown Group Balnakiel Formation Balnakiel Group [Obsolete: use BNK] Bamburgh Formation Bampton Conglomerate [Obsolete: use LTY] Bampton Limestone Formation Bampton Limestone Formation [Duplicate: use BPLM] Bampton Limestone Group [Obsolete: use BPLM] Bampton Limestones Group [Obsolete: use BPLM] Bampton Member [Obsolete: use BPLM] Banbury Coal (North Staffordshire) Banbury Rock Banchory Till Formation Banded Group Banded Group within Blair Atholl Subgroup [Obsolete: use CAFS] Banded Schist within Blair Atholl Subgroup [Obsolete: use CAFS] Banded Series within Pale Group of Blair Atholl Series [Obsolete: use CAFS] Bandy In Northumberland Banffshire Coast and Caithness (Albion) Glacigenic Subgroup Banffshire Coast and Caithness Glacigenic Subgroup Banffshire Coast Drift Group [Obsolete: use BCD] Banffshire Coast Glacigenic Group [Obsolete: use BCD, BCAG] Bangley Dyke Bangley Member [Obsolete: use BYTRC] Bangley Trachytic Member Bangor Formation Banham Beds [Obsolete: use BANM] Banham Member Banjaard Formation Bank Coal Bank deposits Bank Farm Coal (Wyre Forest) Bank Farm Sand and Gravel Bank Moor Limestone Bankfield East Beds Bankhead Marine Band Bankhouses Limestone Banknock Jewel Coal Banknock Lower Drumgray Coal Banknock Main Coal Banknock Shale Coal Banknock Splint Coal Banknock Upper Drumgray Coal Banks Formation Banks Group Banks Sequence [Obsolete: use BANKS, CONCH] Banks Subsequence [Obsolete: use BANKS] Bannagher Sandstone Formation Bannisdale Formation Bannisdale Slates [Obsolete: use BND, UND] Bannock Coal (Cumbria) Bannockburn Lower Main Coal Bannockburn Main Coal Bannockburn Steam Coal Bannockburn Upper Main Coal Bantam Coal (Somerset) Banton [Main] Coal (Glasgow-Airdrie) Banton Blackband Coal Banton Blackband Ironstone Banton Clayband Ironstone Banton Main Coal Banton Rider Coal Banwy Member Baoileig Sill (South Arran) Baranailt Limestone Member Barbae Grits Barcelona Coal Bardahessiagh Formation Bardon 'Good Rock' [Obsolete: use GYA] Bardon Breccia Bardon Hill Volcanic Complex Bardsley Loom Formation Bardsley Rock Bare Coal (Warwickshire) Baren Red Group (Somerset) [Obsolete: use BRR] Bargan Coal (South Lancashire) Bargany Formation [Obsolete: use DYF] Bargate Beds [Obsolete: use BT] Bargate Formation [Obsolete: use BT] Bargate Member [Obsolete: use BT] Bargate Sandstone Member Barham Sand and Gravel Member Bark Butts Silts Member Barkisland Flags Barkley Breccia Formation Barmouth Formation Barn Rock Member Barn Scar Sand And Silt Member Barnby Clays [Obsolete: use BNBM] Barnby Member Barncraig Coal (Fife) Barncroft Beck Beds Barncroft Beck Member [Obsolete: use BACB] Barneil Member Barnes High Sandstone Member Barnesmore Pluton Barnesmore Pluton (Phase 2) Barnesmore Pluton (Phase 3) Barness East Limestone Barney's Cut Coal (Northumberland) Barney's Cut Sandstone Barnham Silt And Clay Member Barns Ness East Limestone Barns Ness Limestone [Obsolete: use MIHO] Barnsley Coal (West and South Yorkshire) Barnsley Rider Coal (West And South Yorkshire) Barnsley Rock Barnstone Member Barnstone Member And Barnby Member (Undifferentiated) Barnt Green Volcanic Formation Barnt Green Volcanic Series [Obsolete: use BGV] Barnwell Abbey Member Barnwell Station Member Barnyards Silt Formation Baron Hill Beds [Obsolete: use BAH] Baron Hill Formation Baron Hill Rocks [Obsolete: use BAH] Baronwood Member Baronwood Sand and Gravel Formation Barony Glen Formation Barr Beacon Beds [Obsolete: use HPBR] Barr Church Andesite Member Barr Group Barr Limestone [Obsolete: use BLZ] Barr Limestone Formation Barr Series [Obsolete: use BARR] Barra Formation Barra Isles Dyke Swarm Barracados Cherts [Obsolete: use TCH] Barrack Hill Andesite Member Barracks Ash Barracks Limestone Barras Conglomerate Formation [Obsolete: use BACO] Barras Conglomerate Member Barras Nose Beds [Obsolete: use BNF] Barras Nose Formation Barrasford Limestone Barren Coal Measures (Upper) [Obsolete: use CMSC] Barren Flagstones [Obsolete: use SLH] Barren Group [Obsolete: use SAR] Barren Measures [Obsolete: use BME] Barren Measures Group [Obsolete: use WAWK] Barren Red Formation (Somerset) [Obsolete: use BRR] Barren Red Group [Obsolete: use BRR] Barren Red Measures [Obsolete: use UCMS] Barren Red Member (Somerset) Barrhead Grit Barrhead Main Coal Barrhill Group Barriedale Flagstones [Obsolete: use BDF] Barrington Beds [Obsolete: use BARB] Barrington Member Barrmill Dyke Barrock Top Limestone Barron's Pike Sandstone Barrow Hill Basaltic Vent Barrow Terrace Deposits Barrow Tuff Member Barroway Drove Beds Barrowmouth Mudstone Formation Barrule Formation Barrule Slates (Manx Slates) [Obsolete: use BRUL] Barrule Slates [Obsolete: use GLRN, BRUL] Barrule Slates and Slieau Managh Slates [Obsolete: use BRUL] Barry Harbour Limestone Formation Barshaw Sill Barton Beds [Obsolete: use BA, CMBS] Barton Clay [Obsolete: use BAC] Barton Clay Formation Barton Formation [Obsolete: use BA] Barton Group Barton Group, Bracklesham Group And Bagshot Formation (Undifferentiated) Barton Limestone [Obsolete: use BRTL] Barton Limestone Member Barton Marls Barton Member [Obsolete: use BRTL] Barton Pebble Bed [Obsolete] Barton Sand [Obsolete: use BAS] Barton Sand Formation Barytes Mine Conglomerate [Obsolete: use BMCG] Barytes Mine Conglomerate Member Basal Andesite Sill-Complex Basal Beds [Obsolete: use PLMA, BKBD, SPN] Basal Beds Formation (Cumbria) Basal Breccia [Obsolete: use PBB] Basal Breccia and Sandstone [Obsolete: use HAE] Basal Cementstones [Obsolete: use KICM] Basal Clastics [Obsolete: use BYC] Basal Clastics Member Basal Conglomerate [Obsolete: use PSKA, TCM] Basal Grampian Division [Obsolete: use KNCG] Basal Gravel Basal Gravels [Obsolete: use MHSG] Basal Green Beds (South Wales) Basal Grit (Millstone Grit of South Wales) [Obsolete: use TWR] Basal Grit (Millstone Grit) [Obsolete: use TCDF] Basal Grit [Obsolete: use TWR] Basal Grits [Obsolete: use TWR] Basal Grits Group [Obsolete: use TWR] Basal Group [Obsolete: use SLLA] Basal Hydraulic Limestone Member [Obsolete: use RVB, CML] Basal Member (Canna Lava Formation) Basal Member (Eigg Lava Formation) Basal Oil Shale [Obsolete: use CUD] Basal Part Of Whitehills Group [Obsolete: use WHYL] Basal Pelite Formation Basal Permian Breccia (South West) Basal Permian Breccia [Obsolete: use PBB, YWS] Basal Permian Sands [Obsolete: use YWS] Basal Permian Sands Formation Basal Permian Sandstone [Obsolete: use YWS] Basal Permian Yellow Sands [Obsolete: use YWS] Basal Quartz Sandstone Formation Basal Quartzite [Obsolete: use BAQ] Basal Quartzite Member Basal Sand [Obsolete: use BROM] Basal Sand And Gravel Basal Sand Bed [Obsolete: use BROM] Basal Sandstone [Obsolete: use DRWN] Basal Sandstone Unit [Obsolete: use VIFM] Basal Shales [Obsolete: use PANT] Basal Shell Bed [Obsolete: use POCH] Basal unit of Sandend Group [Obsolete: use SNDL] Basalanhydrit Formation Base Bed Member Basement Bed [Obsolete: use GLML] Basement Beds (Group) [Obsolete: use MASA] Basement Beds (North Wales) Basement Beds (North West) [Obsolete: use MASA] Basement Beds (Northern Pennines) [Obsolete: use MASA] Basement Beds (Of Dudley) Basement Beds [Obsolete: use WAR, HEY, BRCT, BABE, LFSB, LLW, DELA, FRM, PLT, FRFA, PFLD, DDC] Basement Beds Formation [Obsolete: use FANT, FRFA, LGY, MEST, PANT, PDW] Basement Breccia (Shetland) Basement Conglomerate (Anglesey) [Obsolete: use LGY] Basement Conglomerate (North West) Basement Conglomerate [Obsolete: use LNCO, BABE] Basement Formation (Pars) [Obsolete: use DDC] Basement Formation [Obsolete: use BPLM] Basement or Bearing Grit [Obsolete: use BGRT] Basement Pebble Bed (of the Upper Bagshot Beds) [Obsolete: use STHP] Basement Sands of the Upper Glauconite Beds [Obsolete: use CLLW] Basic Tuff (Lydol Hole) [Part Of UO] Basic tuffs with basalts (Uriconian Group) [Obsolete: use UO] Basic Volcanic Group [Obsolete: use BGL] Basin peat Basket Shell Bed Baslow Coal (Derbyshire) Bass Coal (South Staffordshire) Bass Rock Plug Bassenthwaite Diorite Intrusions Bassey Mine [Obsolete: use BAMC] Bassey Mine Coal (Lancashire) Bassey Mine Coal (North Staffordshire) Bassingfield Sand and Gravel [Obsolete: use BASG] Bassingfield Sand And Gravel Member Bassingham Fen Member [Obsolete: use FULB] Bassy Coal (South Lancashire) Bassy Mine Coal [Obsolete: use BMCO] Bastard Limestone [Obsolete: use CCL] Bastion Steps Beds Bastions Coal (South Lancashire) Baston Burn Group [Obsolete: use BAST] Baston Burn Lava Member Batavier Formation Batch Volcanic Beds [Obsolete: use BV] Batch Volcanic Member Batch Volcanic Rocks [Obsolete: use BV] Batch Volcanics [Obsolete: use BV] Batchie (Blackband) Ironstone Batchie Blackband Ironstone Batchie Coal (Central Coalfield) Bath Freestone [Obsolete: use BHO] Bath Lodge Coal (Ballycastle, Northern Ireland) Bath Lodge Lava Formation Bath Oolite [Obsolete: use BHO] Bath Oolite Member Bath Oolite Member and Corsham Limestone Formation (Undifferentiated) Bath Stone and Lower Rags [Obsolete: use AOL] Bathampton Down Member Bathampton Gravel Member Bathampton Gravel Member and Stidham Gravel Member Undifferentiated Bathampton Member [Obsolete: use BAV1] Bathgate Group Bathgate Hills Volcanic Formation Bathgate Jewel Coal Bathgate Lavas [Obsolete: use BHV] Bathgate Volcanic Formation [Obsolete: use BHV] Bathonian And Callovian Rocks (Undifferentiated) Bathonian Rocks (Undifferentiated) Batty Mine Coal (North Staffordshire) Baulking Sand Member Bay Coal Bay Marine Band [Local Name: see CAMB] Bay Member Bay of Stoer Formation Bay Sandstone Member [Obsolete: use SABA, SBSM] Bay Vein Bays Leap Coal (Northumberland and Durham) Bayston-Oakswood Formation Bayston-Oakswood Group [Obsolete: use BAGP] Bayston-Oakwood Formation [Obsolete: use BAGP] Beach and Tidal Flat Deposits (Undifferentiated) Beach deposits Beach dune sand Beach Rock Beachy Head Beds Beachy Head Marls Beachy Head Sponge Beds Beacon Hill Acid Group [Obsolete: use OF] Beacon Hill Flags Beacon Hill Formation Beacon Hill Sand And Gravel Member Beacon Hill Tuff Formation [Obsolete: use BHF, CMBH] Beacon Hill Volcanic Formation Beacon Hill Volcanic Group [Obsolete: use BHVF] Beacon Hills Marl Beacon Limestone Formation Beacon Tuff Member Beacon Tuffs Member [Obsolete: use BCT] Beaconsfield Flags [Obsolete: use BHF] Beaconsfield Gravel Member Beaconsfield Member [Obsolete: use BDGR] Beadnell Coal (Northumberland) Bealbury Formation Bealesmill Sandstone Formation [Obsolete: use BEAL] Bealsmill Formation Bealsmill Sandstone Formation [Obsolete: use BEAL] Beannach Metapicrite Subswarm Beannan Buidhe Member Bearing Grit Bearreraig Sandstone Formation Bearreraig Sandstone Series [Obsolete: use BEAS] Bearsmouth Or Thorneyburn Coal Bearstone Sandstones [Obsolete: use HEY] Beatrice Formation Beauly Member Beauly Silt Formation Beaumont Coal (Northumberland) Bebside Bank Seam (D/De1) Beccles Glacial Beds Beck Bottom Stone Coal (West Yorkshire) Beck Wood Tuff Member Beckford Terrace Deposits Beckingham Member Becklees Sandstone Formation Beckley Sand Member Beckley Sand, Temple Cowley and Arngrove Spiculite Members [Obsolete: use KTON] Beckley Sands [Obsolete: use BYSA] Becton Bunny Member Becton Sand [Obsolete: use BECS] Becton Sand Formation Becton Sand Formation And Chama Sand Formation (Undifferentiated) Bed 1 [Obsolete: use SYCN] Bed 3 (lower part of Crovie Group) [Obsolete: use CHST] Bed 3 (Upper Part) of Crovie Group [Obsolete: use GMSA] Bed 3 [Obsolete: use PYDN] Bed 4 [Obsolete: use PNN] Bed 4 Oolite Group [Obsolete: use BLO] Bed 6 (part of Marker Beds) [Obsolete: use DDLM] Bed A and lower part of Bed B [Obsolete: use RSVR] Bed A, excluding upper part [Obsolete: use RSVR] Bed B [Obsolete: use CKRI, WKH] Bed C [Obsolete: use WLN, CKRI, TDH] Bed D [Obsolete: use HSW] Bed F [Obsolete: use LAR] Bedchester Sands Member Bedded agglomerate of Greenan Castle [Obsolete: use GCP] Bedded Pyroclastic Formation Bedded Tuff [Obsolete: use DPT] Bedhampton Marls (One) Bedhampton Marls (Three) Bedhampton Marls (Two) Bedlam Gill Coal (Cumbria) Bedminster Great Coal (Bristol Area) Bedminster Little Coal (Bristol Area) Bedminster Toad Coal (Bristol Area) Bedminster Top Coal (Bristol Area) Bedrock (pre-Carboniferous rocks) at or near surface [see descriptions for limitations of use] Bedrock (sedimentary cover) at or near surface [see descriptions for limitations of use] Bedrock at or near surface [see descriptions for limitations of use] Bedrock Geology Not Mapped [For Digital Map Use Only] [Obsolete: use BEDNM] Bedrock Theme Not Mapped [For Digital Map Use Only] Bedruthan Formation Bedruthan Slates [Obsolete: use BEDN] Beds 1 and 2 in Crovie Group [Obsolete: use DCST] Beds 5 and 6 [Obsolete: use COFYD] Beds at A, A1 and lower part of B [Obsolete: use RSVR] Beds at C [Obsolete: use CKRI] Beds at D to E [Obsolete: use GHD] Beds at D to H [Obsolete: use WLN] Beds at F [Obsolete: use LAR] Beds at G and H [Obsolete: use BDD] Beds at J to M [Obsolete: use HSW] Beds C To H Beds C, E [Obsolete: use BNY] Beds D to E [Obsolete: use GHD] Beds D to H [Obsolete: use WLN] Beds G and H [Obsolete: use BDD] Beds included in 'Millstone Grit' [Obsolete: use HGP] Beds of 'Findon Group' [Obsolete: use GDC] Bee Coal Bee Low Formation [Obsolete: use BLL] Bee Low Group [Obsolete: use BLL] Bee Low Limestone Formation Bee Low Limestones [Obsolete: use BLL] Bee Low Limestones Formation (Apron-Reef) Bee Low Limestones Formation (Knoll-Reef) Beechcliff Sandstone Beechwood Conglomerate Bed Beeding Beds Beeding Flints Beeding Hardgrounds Beeding Marl Beefie Coal (Lothian) Beenham Grange Gravel [Obsolete: use BGGR] Beenham Grange Gravel Member Beenham Stocks Gravel [Obsolete: use BSGR] Beenham Stocks Gravel Member Beer Head Limestone Formation Bees Nest Member Beeson Grits Formation Beeston Chalk Member Beeston Coal (West Yorkshire) Beeston Regis Formation [Obsolete: use SMCL] Beeston Rider Coal (West Yorkshire) Beeston River Deposits [Obsolete: use BDTN] Beeston River Terrace Deposits [Obsolete: use BDTN] Beeston Sand and Gravel [Obsolete: use BSSG] Beeston Sand and Gravel Member Beeston Terrace [Obsolete: use BSSG, ALSG] Beetle Bed Beggar Coal (Midlothian) Bein Nan Coireag Conglomerate Beinn A'Chaisteil Quartzite Formation Beinn A'Ghlo Graphitic Schist [Obsolete: use MEDS] Beinn A'Ghlo Quartzite Beinn A'Ghlo Quartzite Formation [Obsolete: use MEDQ] Beinn A'Ghlo Schist Beinn A'Ghlo Transition Formation Beinn A'Ghlo Transition Formation And Glen Clunie Graphitic Schist Formation (Undifferentiated) Beinn Airein-An Stac Member Beinn An Dothaidh Formation Beinn An Dubhaich Granite (Skye Eastern Red Hills Centre: Phase 3) Beinn An Dubhaich Limestone Beinn An Leathaid Granodiorite Intrusion Beinn An Tuim Striped Formation Beinn an Uain Till Formation Beinn Bheula Schist [Obsolete: use DCBB] Beinn Bheula Schist Formation Beinn Bhreac Member Beinn Bhreac Psammite [Obsolete: use BBPS] Beinn Bhreac Psammite Formation Beinn Buidhe Older Quartz-Gabbro Intrusion Beinn Chaisgidle (Centre 2) Suite Beinn Churalain Quartzite Beinn Deag Mhor Granite (Western Red Hills Centre: Phase 5) Beinn Donn Quartzite Formation Beinn Dorain Semipelite Formation Beinn Edra Formation Beinn Edra Group [Obsolete: use BEDRA] Beinn Gaire Psammite Member Beinn Iadain Mudstone Formation Beinn Iaruinn Quartzite Formation Beinn Leamhain Psammite Formation [Obsolete] Beinn Mheadhoin Pebbly Psammite Formation Beinn Na Cro Gabbro (Skye Eastern Red Hills Centre) Beinn Na Cro Granite (Skye Eastern Red Hills Centre: Phase 2) Beinn na Leac Sandstone Member Beinn Na Seamraig Formation Beinn Na Seamraig Grits [Obsolete: use TBS] Beinn Nan Ord Gabbro Ring-Dyke Beinn Totaig Formation Beinn Udlaidh Quartzite Formation Beith Lava Member Beith Lavas [Obsolete: use BELA] Belah Dolomite Beldin Gill Ganister Beldin Gill Ganister Formation [Obsolete: use BEG] Beldorney Pelite Formation Belemnite Beds [Obsolete: use BM] Belemnite Marl Member Belemnite Marls [Obsolete: use BM, PLMA] Belemnite Sands Member Belemnitiferous and Micaceous Marls (upper part) [Obsolete: use DICL] Belfast Group Belfast Harbour Evaporite Formation Belfast Marls Formation Belfast Marls Member [Obsolete: use BLFM] Belhaven Point Vent Belhelvie Basic Intrusion Belhelvie Pluton Bell Crags Breccia Member Bell Crags Member [Obsolete: use BCR] Bell Pit Bell Pit [Duplicate: use WMBP] Bell's Hill and Howden Burn Group [Obsolete: use BHHB, TDH] Bell's Hill and Howden Burn Volcanic Formation [Obsolete: use BHHB] Bell's Hill Volcanic Member Bellavally Formation Belle Tout Beds Belle Tout Marls (One) Belle Tout Marls (Three) Belle Tout Marls (Two) Bellfield Conglomerate Bed Belling Limestone Bellingham Coal (Northumberland) Bellman Limestone Member Bellmoor Member Bellochantuy Bay Formation Bellringer Coal (North Staffordshire) Bellscamphie Till Formation Bellshill Clay Member Bellshill Formation [Obsolete: use BILL] Bellside Coal (Glasgow; Central Coalfield) Bellside Ironstone (Central Coalfield) Bellyhack Quartzite Member Belper Grit Belper Lawn Coal (Leicester, Nottingham, Derby) Belsay Dene Coal (Northumberland) Belsay Dene Limestone Beltiboy Coal (Dungannon) Belton Brae Vent Belton Grain Vein Belton Sand And Gravel Belvoir Limestone Formation Bembridge Beds Bembridge Limestone [Obsolete: use BEL] Bembridge Limestone Formation Bembridge Marls [Obsolete: use BMBG] Bembridge Marls Member Bembridge Oyster Beds Bembridge Raised Beach [Obsolete: use BEMRB] Bembridge Raised Beach Member Ben A Caillich Granite (Skye Eastern Red Hills: Phase 5) Ben Aian Quartzite [Obsolete: use BAQU] Ben Aigan Quartzite [Obsolete: use BAQU] Ben Aigan Quartzite Member Ben Bowie Lava Member Ben Challum Quartzite Formation Ben Dorrery Conglomerate Member Ben Dubhain Breccia And Conglomerate Ben Eagach Schist [Obsolete: use BESC] Ben Eagach Schist Formation Ben Griam Conglomerate Member Ben Griam Lower Arkose [Obsolete: use BGCON] Ben Griam Lower Conglomerate [Obsolete: use BGCON] Ben Griam Upper Arkose [Obsolete: use BGCON] Ben Griam Upper Conglomerate [Obsolete: use BGCON] Ben Hiant Breccia Member Ben Hiant Intrusion Ben Hiant Pitchstone Sheet-Swarm Ben Hiant Porphyritic Dolerite Intrusion Ben Hope Sill Suite Ben Killilan Psammite Member Ben Lawers Schist [Obsolete: use BLAS] Ben Lawers Schist Formation Ben Ledi Grit Formation Ben Ledi Grits [Obsolete: use ARES, CISA, LDBU] Ben Loyal Intrusion Ben Lui Schist [Obsolete: use BLUS] Ben Lui Schist Formation Ben Lundie Formation Ben More Lava Formation Ben Nevis Complex Ben Nevis Complex (Inner Granite) Ben Nevis Complex (Marginal Intrusion) (Pyroxene Diorite To Granodiorite) Ben Nevis Complex (Marginal Intrusion) (Quartz Diorite) Ben Nevis Complex (Outer Granite) Ben Nevis Dyke Swarm Ben Nevis Volcanic Formation Ben Nevis Volcanic Series [Obsolete: use AMMU, BNVO] Ben Rinnes Pluton Ben Rinnes Pluton (Phase 1) Ben Rinnes Pluton (Phase 2) Ben Rinnes Pluton (Phase 3) Ben Rinnes Pluton (Phase 4) Ben Stumanadh Intrusion Ben Suardal Limestone [Obsolete: use BSLL] Ben Suardal Member Ben Vuirich Pluton Ben Wyvis Pelite [Obsolete: use BWYP] Ben Wyvis Pelite Formation Ben Wyvis Pelitic Schist [Obsolete: use BWYP] Ben Wyvis Psammite [Obsolete: use GAPS] Benan Conglomerate Formation Benarth Grits And Flags Benbulben Shale Formation Benburb Group Benburb Lignite [Obsolete: use BNBL] Benburb Mudstone Member Bench Coal Bench Coal (Warwickshire) Bench Thin Coal (Warwickshire) Benches Coal (South Staffordshire) Bencliff Grit [Obsolete: use BFG] Bencliff Grit Member Bencliff Grit Series [Obsolete: use BFG] Bencroy Shale Formation Benglog Volcanic Formation Benhar Coal Benholm Clay Formation Benigarth Mica-Schist (?Formation) Bennachie Pluton Bennan Intrusion (South Arran) Bennane Lea Breccia Member Benscliffe Agglomerate [Obsolete: use CMBA, BENS] Benscliffe Breccia Member Benscliffe Breccia Member [Duplicate: use CMBA] Bensham Coal (Northumberland) Benthall Beds [Obsolete: use BEB] Benthall Member Bentinck Coal (Northumberland) Bentleyford Shales Formation Benton Series [Obsolete: use PBV] Benton Volcanic Group Benton Volcanic Series [Obsolete: use PBV] Bents Fireclay Beoch Musselband Beoil Banded Schist [Obsolete: use DUNS] Beoil Quartzite [Obsolete: use BEOQ] Beoil Quartzite Formation Beoil Schist [Obsolete: use BEOS] Beoil Schist Formation Beoil Schist Formation And Meall Dubh Striped Pelite Formation (Undifferentiated) Beragh Granite Beresford Seam Berkshire Oolite "Series" [Obsolete: use BYSA] Berkshire Oolite Series [Obsolete: use BYSA] Berkshire Oolite Series and Osmington Oolite Series [Obsolete: use STOU] Berllan Beds Berllan Formation [Obsolete: use BER] Bernisk Glen Conglomerate Formation [Obsolete] Berriedale Conglomerate Berriedale Flagstone Formation Berriedale Sandstone Formation Berriedale Sandstone Group [Obsolete: use BDSA] Berriedale Sandstones [Obsolete: use BDSA] Berry Head Member Berry Member [Obsolete: use LCB] Berry Slade Formation Berryhills Coal (Glasgow Area; Central Coalfield) Berryhills Limestone Berryley And Hardslacks Members Of Camp Fauld Formation Of Bowen (1999) Berryley Peat Bed Berw Shear Zone Berwick Limestone Beryl Formation [Obsolete: use HUGI] Bessygill Limestone Best Coal (Coalbrookdale) Beta Coal (North Wales) Beta Rider Coal (North Wales) Better Bed Band Coal (West Yorkshire) Better Bed Coal (West And South Yorkshire) Better Bed Fireclay Bettisfield Formation [Obsolete: use PCM] Betton Beds [Obsolete: use BET] Betton Member [Obsolete: use BET] Betton Shale Formation Betton Shale Formation [Duplicate: use BET] Betton Shale Formation And Meadowtown Formation (Undifferentiated) Bettshanger L Coal (Kent) Bettws Four Feet Coal (South Wales) Bettws Mill Tuff Member Bettws Mudstone Formation Bettyhill Formation Bettyhill Suite Beul Lama Sgorr Member Beverkae Limestone Bewcastle Beds [Obsolete: use BWCB] Bewcastle Member Bewerley Shales Beyrichoceras Hodderense Bed [Obsolete: use BOH] Bharradail Phyllite Member Bheinn Bhreac Member [Obsolete: use TCAS] Bickerton Moraines Formation [Obsolete: use ESKRM] Biddenham Member Bidean Nam Bian Andesite Member Bideford Formation Bideford Group [Obsolete: use BFF] Bielby Peat Bed Bielby Sand Member Bifidus Beds [Obsolete: use BFDS] Bifidus Shales [Obsolete: use ABM] Bifidus Slate Formation Bifidus Slate Formation and Murchisoni Beds (Undifferentiated) [Obsolete: use BFMB] Bifidus Slates [Obsolete: use CREN, BFDS] Big Coal (Somerset) Big Coal (South Wales) Big Drum Coal (Lanarkshire) Big Flint Coal (Coalbrookdale) Big Flint Rock Big Mine Coal Big Rider Coal (South Wales) Big Rock Coal (South Wales) Big Smut Coal (Goyt Trough) Big Vein [Obsolete: use BIGC] Big Vein Coal (South Wales) Biggar Volcanic Formation Bigholms Burn Peat Bed Bighouse Formation Bighouse Limestone Member [Obsolete: use GLB] Bighouse Sandstone Formation [Obsolete: use BIGH, RBSM] Bighouse Sandstone Formation and lower part of Sandside Sandstone Formation [Obsolete: use BIGH] Biglees Hill Sill Bilinguites bilinguis Marine Band (1 of 3) Bilinguites bilinguis Marine Band (2 of 3) Bilinguites bilinguis Marine Band (3 of 3) Bilinguites bilinguis Marine Band [Duplicate: use R2B1] Bilinguites bilinguis Marine Band [Duplicate: use R2B2] Bilinguites bilinguis Marine Band [Duplicate: use R2B3] Bilinguites bilinguis Marine Band [See Also: R2B1 R2B2 R2B3] Bilinguites eometabilinguis Marine Band Bilinguites eometabilinguis Marine Band [Duplicate: use R2B4] Bilinguites gracilis Marine Band Bilinguites gracilis Marine Band [Duplicate: use R2A1] Bilinguites metabilinguis Marine Band Bilinguites metabilinguis Marine Band [Duplicate: use R2B5] Bilinguites superbilinguis Marine Band Bilinguites superbilinguis Marine Band [Duplicate: use R2C1] Billingham Anhydrite Formation Billy Coal (South Staffordshire) Bilsdean Sandstone Bilston Burn Limestone [Obsolete: use SHLS] Bilston Rock (South Staffordshire) Bilton Coal [Obsolete: use BICO] Bilton Coal Beds Bin Coal (South Lancashire) Bin Down Formation Bin Mine Coal [Obsolete: use BNCO] Bin Mountain Sandstone Formation Bincombe Mudstone Member [Obsolete: use RID] Bindon Sandstone Member Binds Stone (South Staffordshire) Bingley Bog Formation Binnein Quartzite [Obsolete: use DABQ] Binnein Quartzite Member Binnein Schist [Obsolete: use DABS] Binnein Schist Member Binnend Limestone Binnend Sandstone Binnend Sandstone Member [Obsolete: use BINS] Binny Craig Sill Binny Sandstone Binsey Formation [Obsolete: use EVG] Bioclastic sand deposits Biological deposits Biotite-Quartz-Gneiss Of Sark Birch Sandstone Member Birchenwood Coal Birchlaw Limestone Birchwood Semipelite Formation Birdlip Limestone Formation Birdoswald Limestone Group [Obsolete: use TYLS] Birdsall Calcareous Grit Member Birdshill Limestone Birdwell Rock Birgidale Formation Birk Fell Group [Obsolete: use SCW] Birk Riggs Formation Birkby Fell Andesite Member Birkby Fell Member [Obsolete: use BKB] Birkdale Limestone Birkenhead Sandstone Formation Birker Fell Andesite Formation Birker Fell Andesite Group [Obsolete: use BFA] Birkfield Limestone Birkhill Shale Formation Birkhill Shales [Obsolete: use BKSH] Birky Cleugh Limestone Birnam Grit [Obsolete: use BSAG] Birnam Slate [Obsolete: use BSAG] Birnam Slate And Grit Formation Birnbeck Limestone Formation [Obsolete: use HTL] Birnie Gravel Formation Birrenswark Lavas [Obsolete: use BIRV] Birrenswark Volcanic Formation Birrenswark Volcanic Group [Obsolete: use BIRV] Birstall Rock Birstall Sand and Gravel [Obsolete: use BISG] Birstall Sand and Gravel Member Birstall Terrace [Obsolete: use BISG] Birtley Limestone Bisat Group Biscathorpe Sand And Gravel Bishop's Frome Limestone Member [Obsolete: use CHAP] Bishop's Quarry Beds [Obsolete: use CFML] Bishop's Quarry Limestone Formation [Obsolete: use CFML] Bishopbriggs Sandstone Bishopston Formation [Obsolete: use BISHM] Bishopston Mudstone Formation Bittadon Tuff Bed Bitter Beck Formation Bla-Bheinn Member Black (Aberdo) Limestone [Obsolete: use TLB] Black and White Coal (South Lancashire) Black and White Mine Coal [Obsolete: use BAWC] Black Band Coal (North Staffordshire) Black Band Coal (South Yorkshire) Black Band Formation [Obsolete: use BBG] Black Band Ironstone Member Black Band Member Black Bass Coal (North Staffordshire) Black Bed Coal (North Wales) Black Bed Coal (West Yorkshire) Black Bed Ironstone (West Yorkshire) Black Cliff Coal (Milford, South Wales) Black Cliff Vein [Obsolete: use BCCO] Black Coal (Bristol Area) Black Coal (South Lancashire) Black Coal (South Wales) Black Cock Beds [Obsolete: use BCB] Black Cock Formation Black Down Sandstone Group [Obsolete: use CKF] Black Hill Intrusion [Obsolete: use BKHI] Black Hill Laccolith Black Isle Sandstone Group Black Law Plug (Greenock) Black Law Vent And Plug (Jedburgh) Black Lias [Obsolete: use OB] Black Limestone (Isle Of Man) Black Limestone [Obsolete: use TLB] Black Limestones And Shales Black Marl [Obsolete: use BVM, SHWB] Black Metal Coal (Cumbria) Black Metals [Obsolete: use BKME] Black Metals Marine Band [Local Name: see HTMB] Black Metals Member Black Mine Coal [Obsolete: use BMIC] Black Mount Group [Obsolete: use BMLA] Black Mount Lava Member Black Mountain Shale Member Black Neuk Member Black Nore Beds Black Nore Sandstone (Jurassic) Black Nore Sandstone Formation [Obsolete: use BRS] Black Park Gravel Member Black Rake Coal (Nottingham) Black Rock Dolomite [Obsolete: use FPL] Black Rock Dolomite Formation [Obsolete: use BRL, FPL] Black Rock Group [Obsolete: use BRL] Black Rock Limestone [Obsolete: use FPL, BHL] Black Rock Limestone Formation [Obsolete: use BRL] Black Rock Limestone Subgroup Black Rock Subgroup And Gully Oolite Formation (Undifferentiated) Black Rocks Sill Black Schist and Chert Black Shale And Chert Black Shale And Chert "Series" (A) [Obsolete] Black Shale And Chert "Series" (B) [Obsolete] Black Shale and Margie Grit [Obsolete: use MARG] Black Shales [Obsolete: use WBY] Black Shales And Conglomerates Black Shales of Malvern [Obsolete: use WOA] Black Shelly Boulder Clay [Obsolete: use BECL] Black Shelly Till [Obsolete: use BECL] Black Slate and Chert [Obsolete: use BLSL] Black Slates of Dolwyddelan [Obsolete: use NOG] Black Slates of Skiddaw [Obsolete: use KST] Black Stockarton Moor Complex [Obsolete: use BSTM] Black Stockarton Moor Subvolcanic Complex Black Top Coal Black Vein Coal (South Wales) Black Ven Beds [Obsolete: use BVM] Black Ven Marl Member Black Ven Marls [Obsolete: use BVM] Blackband Coal (New Cumnock) Blackband Coal (South Wales) Blackband Group [Obsolete: use BBG] Blackband Lingula Band Blackband Marine Band Blackberry Bank Formation Blackbrook Beds [Obsolete: use CBK] Blackbrook Formation [Obsolete: use CBK] Blackbrook Group Blackbrook Reservoir Formation Blackbrook Series [Obsolete: use CBK] Blackbyre Coal (Glasgow; Central Coalfield) Blackbyre Limestone Blackchapel Coal (Lothian) Blackcleugh Limestone Blackclose Coal (Rothbury Area) [Obsolete: use MOOR] Blackcraig Formation Blackcraig Formation And Galdenoch Formation (Undifferentiated) Blackford Hill Member Blackhall Colliery Formation Blackhall Estheria Band Blackhall Formation [Obsolete] Blackhall Limestone Blackhall Member Blackhall Till Formation Blackheath Beds [Obsolete: use CHGR, BLB] Blackheath Member Blackheath Pebble Member [Obsolete: use BLB] Blackhill Coal (Northumberland) Blackhills Sand and Gravel Formation Blackmine Coal (North Staffordshire) Blackmires Limestone Bed Blacko Marine Band Blackpool Mudstone Member Blackrock Grit Formation Blackrock Marl Blackshale And Ashgate Coal (Vale Of Belvoir) Blackshale Coal (South Yorkshire, Nottingham And Derby) Blackshale Lower Leaf Coal (Derby) Blackshale Sill Blackshale Upper Leaf Coal (Derby) Blackshale/Ashgate Group (Of Coals) (Nottingham) Blackslee Dyke [Obsolete] Blackstokes Limestone Formation Blackstone (Shropshire) Blackstone Bed (Jurassic) Blackstone Coal (Coalbrookdale) Blackstone Coal (Stoke) Blackstone Edge Sandstone Blackstone Marine Band [Local Name: see MTMB] Blackstones Band Igneous Complex Blacktongue Coal Blackwater Formation Blackwater Hollow Gravel Member Blackwater Limestone Formation Blackwater Pluton Blackwood Beds [Obsolete: use DYF] Bladon Beds and Kemble Beds [Obsolete: use BLAD] Bladon Member Blae Pot Coal Blae Pot Limestone Blaeberry Coal Blaeberry Formation Blaen Eidda Member [Obsolete: use CEI] Blaen Myherin Mudstones Formation Blaen Onnen Oolite [Obsolete: use BLO] Blaen Onnen Oolite Formation Blaen Y Cwm Beds [Obsolete: use BCSH] Blaen-Y-Cwm Shale Formation Blaen-Y-Glyn Formation Blaguegate Yard Coal Blair Atholl Dark Limestone and Dark Schist [Obsolete: use GBSC] Blair Atholl Dark Limestone And Dark Schist Formation Blair Atholl Series [Obsolete: use DABA, DABH] Blair Atholl Subgroup Blair Flags and Shales [Obsolete: use BLRS] Blair Hill Tuff Member Blair Shale Formation Blair Shales [Obsolete: use BLRS] Blairdaff Moraine Formation Blairfindy Limestone Member Blairgowrie Sandstone Formation [Obsolete: use SCN] Blairhall Blackband Ironstone Blairhall Main Coal (Cowdenbeath) Blairhall Main Coal (Fife) Blake Brow Breccia Member Blake Brow Member [Obsolete: use BLBR] Blakefell "Mudstone" [Obsolete: use KST] Blakeney Formation Blakeney Valleys Formation Bland Coal (South Lancashire) Blandford Chalk Member [Obsolete: use NCK, SECK] Blane Water Formation [Obsolete: use BLAW] Blane Water Silt Formation Blanket bog peat Blanket head (regolith) [Obsolete: use RLITH] Blanket head [Obsolete: use RLITH] Blargie Quartzite Member Blatchford Sand [Obsolete: use WOG] Blaven Granite (Srath Na Creitheach Centre) Blea Wyke Beds [Obsolete: use BW] Blea Wyke Sands [Obsolete: use BW] Blea Wyke Sandstone Formation Blea Wyke Series [Obsolete: use BW] Bleadon Member Bleak Down Gravel Member Bleawath Formation [Obsolete: use BLEA] Bleawath Tuff Formation Blelham Peat Formation Blenfire Coal (South Lancashire) Blenfire Mine Coal [Obsolete: use BLEN] Blenfire Rock Blengdale Glacigenic Formation Blengdale Tuff Formation Blidworth and Top Hard Coal (Vale of Belvoir) Blidworth Coal (Nottingham) Bligh Bank Formation Blind Beck Sandstone Formation [Obsolete: use BBKS] Blind Beck Sandstone Member Blind Cove Member [Obsolete: use BLCV] Blind Cove Sandstone Member Blind Rock Dyke Blisco Formation [Obsolete: use BCO] Blisco Member [Obsolete: use BCO] Blisco Sandstone Member Blisworth Clay Formation Blisworth Clay Member [Obsolete: use BWC] Blisworth Limestone [Obsolete: use WHL] Blisworth Limestone Formation Block Coal (South Derbyshire) Blockfield Blocking Bed Coal Blocking Coal (West Yorkshire) Blocking Rider Coal (West Yorkshire) Bloody Bay Sandstone Blowgill Member [Obsolete: use EBB] Blown sand Blown sand, 1 Blucks Pool Limestone [Obsolete: use BRL] Blue Anchor Formation Blue Anchor Formation And Penarth Group (Undifferentiated) Blue Clays [Obsolete: use EYCL] Blue Coal (Somerset) Blue Flats Ironstone (South Staffordshire) Blue Lias [Obsolete: use BLI, RLS] Blue Lias Formation Blue Lias Formation (Hebrides) Blue Lias Formation (Hebrides) and Breakish Formation, Interdigitated Blue Lias Formation (Hebrides), Breakish Formation, And Beinn Iadain Mudstone Formation Blue Lias Formation (Marginal Facies) [Obsolete: use BLI] Blue Lias Formation And Charmouth Mudstone Formation (Undifferentiated) Blue Lias Formation, Charmouth Mudstone Formation And Dyrham Formation (Undifferentiated) Blue Lias Formation, Scunthorpe Mudstone Formation And Charmouth Mudstone Formation (Undifferentiated) Blue Limestone Blue Marl [Obsolete: use GLT, CHAM] Blue Marle [Obsolete: use GLT] Blue Tour Coal (Ayrshire) Blue Tour Limestone Blue Wick Sands [Obsolete: use BW] Blue-Grey Series [Obsolete: use BCD, ESTI] Blues Limestones Bluntisham Clay [Obsolete: use AMC] Blyth Coal (Nottingham) Blyth Member [Obsolete: use BYTIL] Bo'ness Lower Ironstone Bo'ness Six Foot Coal Bo'ness Splint Coal (Glasgow Area; Central Coalfield) Bo'ness Upper Ironstone Boat Harbour Marine Band Boat Of Garten Pluton Boathill Limestone Member Bobberstone Farm Gravel Member Bochruben Formation Bod Deiniol Member Bodafon Beds [Obsolete: use BODA] Bodafon Formation Bodafon Moor Flags Bodafon Quartzite Bodeidda and Deganwy Mudstones [Obsolete: use COMU] Bodeidda Mudstones [Obsolete: use COMU] Bodeidda-Deganwy Mudstone [Obsolete: use DYM, BDM] Bodelwyn Beds [Obsolete: use NHBB] Bodelwyn Formation Bodgadle Member Bodieve Tuff Bodlondeb Tuff Member Bodmin Intrusion Bodorgan Formation Bodwr Coal (South Wales) Bodwrog Marble Bodwrog Member Bofrishlie Burn Sandstone Formation [Obsolete: use BBSA] Bofrishlie Burn Sandstone Member Bofrishlie Slate Formation Bog iron-ore Bog Mine Outliers [Obsolete: use BOQ] Bog Quartzite [Obsolete: use BOQ] Bog Quartzite Formation Boganglogh Margin Type Ultramafic Intrusion Boggierow Intrusion Boghead Gas Coal Boghole and Whitemire Beds Boglochty Beds Bogne Hollow Chert Member Bognor Member [Obsolete: use BOSA] Bognor Rock Bed [Obsolete: use BOSA] Bognor Sand [Obsolete: use BOSA] Bognor Sand Member Bogside Ironstone And Coal Bogside Limestone Bogside Main Coal Bogside Thick Coal Boheeshane Chalk Formation Boheeshane Chalk Member [Obsolete: use BHCK] Bold Formation Bold Venture Beds Bolders Bank Formation Bole Hill Channel Bole Hill Sandstone Bollandoceras Hodderense Beds [Obsolete: use BOH] Bollin Mudstone Formation [Obsolete: use BOM] Bollin Mudstone Member Bolsa Member Bolton Marine Band [Local Name: see AGMB] Bomb Crater Bonahaven (Bunnahabhain) Dolomite Formation Bonahaven Dolomite [Obsolete: use DBBD] Bonaly Group [Obsolete: use BNY, WKH] Bonaly Volcanic Formation [Obsolete: use BNY] Bonaly Volcanic Member Bonanza Coal Bonawe Succession Bonchester Hill Plug Bonds Glen Limestone Member Bone Bed Limestone Bone Coal (Dungannon) Bone Coal (South Lancashire) Bonnington Intrusion (?Sill) Bonnyhill Craw Coal Bonsall Microgabbro Sill Bonsall Moor Basaltic Vent Bookham Conglomerate Bed Boon's Member Bopeep Flints Bordeaux Pit Member Border Group Border Group, Lower [Obsolete Code: Use LBO] Border Group, Lower [Obsolete: use BGN, LYNE] Border Group, Middle [Obsolete Code: Use MBO] Border Group, Middle [Obsolete: use FELL] Border Group, Upper [Obsolete: use TYLS] Border Group, Upper [Obsolete: use UBO] Borders Glacigenic Subgroup Boreland Coal (Fife) Boreland Formation [Obsolete: use SHIN] Boreray Basic Magmatic Breccia Intrusion Borestone Coal Borrowash Sand and Gravel Member Borrowdale Sill Suite Borrowdale Volcanic Group Borrowdale Volcanic Series [Obsolete: use BVG] Borth Mudstones Formation Borthwick Sill Boscastle Formation Boscastle Measures [Obsolete: use BOSC] Boscombe Sand Formation Bosies Bank Formation Bosworth Clay Member Botany Grit Botany Limestone Bothkennar Gravel [Obsolete: use BKGR] Bothkennar Gravel Formation [Obsolete: use BKGR] Bothkennar Gravel Member Bothwell Bridge Marine Band Bothyhill Gravels Member Botney Cut Formation Bottom Beaumont Coal (Northumberland) Bottom Bed [Obsolete: use UPR] Bottom Beeston Coal (West Yorkshire) Bottom Bensham Coal (Northumberland) Bottom Brass Thill Coal (Durham) Bottom Brockwell Coal (Northumberland And Durham) Bottom Brown Metal Coal Bottom Busty Coal (Northumberland and Durham) Bottom Coal (Birmingham) Bottom Coal (Rothbury Area) [Obsolete: use PLY] Bottom Coal (South Staffordshire) Bottom Coatyards Coal (Northumberland) Bottom Crag Limestone Bottom Durham Low Main Coal (Northumberland And Durham) Bottom First Waterloo Coal (Derby) Bottom Five Quarter Coal (Northumberland And Durham) Bottom Fourth Waterloo Coal (Derby) Bottom Furnace Coal (South Lancashire) Bottom Furnace Mine Coal [Obsolete: use BOTF] Bottom Haigh Moor Coal Bottom Harvey Coal (Durham) Bottom Hebburn Fell Coal (Northumberland) Bottom High Main Coal (Derby) Bottom High Main Coal (Northumberland And Durham) Bottom Holers Coal (Birmingham) Bottom Holers Coal (South Staffordshire) Bottom Hutton Coal (Durham) Bottom Little Coal (Somerset) Bottom Little Limestone Bottom Little Vein [Obsolete: use BOLC] Bottom Main Coal (Durham) Bottom Marshall Green Coal (Northumberland And Durham) Bottom Maudlin Coal (Durham) Bottom Moorland Coal (Northumberland) Bottom Neddy Coal Bottom Neddy Mine Coal [Obsolete: use BNED] Bottom Netherwitton Coal (Northumberland) Bottom Of Broomhill Coal Bottom Pigeon House Coal (South Lancashire) Bottom Plessey Coal (Northumberland) Bottom Robins Coal (South Staffordshire) Bottom Rock Bottom Ryhope Five Quarter Coal (Northumberland) Bottom Ryhope Little Coal (Northumberland And Durham) Bottom Saltwick Coal (Northumberland) Bottom Second Waterloo Coal (Derby) Bottom Shuttles Coal (South Lancashire) Bottom Shuttles Mine Coal [Obsolete: use BSHC] Bottom Three-Quarter Coal (Northumberland And Durham) Bottom Tilley Coal (Northumberland And Durham) Bottom Usworth Coal (Northumberland And Durham) Bottom Vein Mine Ground (South Wales) Bottom Victoria Coal (Northumberland And Durham) Bottom Wheatworth Coal (West Yorkshire) Bottom Widdrington Main Coal Bottom Yard Coal (Northumberland) [Obsolete: use YARD] Bottom Yard Coal (South Lancashire) Boueti Bed Boulby Halite Boulby Potash Member Boulder clay [Obsolete: use TILL] Boulder Clay And Laminated Clay (Alternate Beds) Boulder clay of Lake District provenance [Obsolete: use SBTI] Boulder clay with Jurassic fossils [Obsolete: use WHGL] Boulder clay, glacial till [Obsolete: use VYORK] Bouldnor Copse Gravel Member Bouldnor Formation Bouley Rhyolite Formation Bouley Rhyolite Formation [Duplicate: use BRH] Boultypatrick Grit Boundary Zone And Yell Sound Division (Undifferentiated) Boundary Zone Complex Bournemouth Formation [Obsolete] Bournemouth Freshwater Beds [Obsolete: use BRKS] Bournemouth Group [Obsolete: use BRB] Bournemouth Marine Beds [Obsolete: use BRKS] Bourton Limestone Member Bovevagh Till [Obsolete] Bovey Beds [Obsolete: use AGR, BHGR] Bovey Formation Bovisand Beds [Obsolete: use BOV] Bovisand Formation Bovisand Formation [Duplicate: use BOV] Bovisand Formation And Staddon Formation (Undifferentiated) Bow Beds [Obsolete: use BOB] Bow Breccia Formation Bow Conglomerates [Obsolete: use BOB] Bowden Way Beds Bowden Way Beds And Acuminata Beds (Undifferentiated) Bowfell Links Member [Obsolete: use BFL] Bowfell Links Sandstone Member Bowhills Formation [Obsolete: use EN] Bowhills Member [Obsolete: use BWH] Bowhouse Coal (Fife) Bowhousebog Coal Bowhousebog Ironstone Bowland High Group Bowland High Group And Craven Group (Undifferentiated) Bowland Shale Formation Bowland Shale Formation [Duplicate: use BSG] Bowland Shale Group [Obsolete: use BSG] Bowland Shale Group [Obsolete: use CRAV] Bowland Shale, Lower [Obsolete: use LBS] Bowland Shales [Obsolete: use BSG] Bowling Alley Coal (North Staffordshire) Bowmore Psammite [Obsolete: use BOWM] Bowmore Sandstone [Obsolete: use BOWM] Bowmore Sandstone Group Bowsebank Coal (Fife) Bowsey Wood Formation Box Law Plug Boyd's Burn Lava Member Boyd's Burn Lavas [Obsolete: use BDLA] Boyle Sandstone Formation Boyn Hill Gravel Formation [Obsolete: use BHT] Boyn Hill Gravel Member Boyn Hill Terrace [Obsolete: use BHT] Boyndie Bay Formation [Obsolete: use MCD] Boyndie Bay Group [Obsolete: use MCD, DCBD] Boyne Castle Limestone Member Boyne Craig Till Formation Boyne Hollow Chert Member Boyne Limestone [Obsolete: use BOYL] Boyne Limestone Formation Bozeat Till Member Bracadale Formation Bracadale Group [Obsolete: use BDALE, BTAIG] Brachiopod Beds [Obsolete: use WAB] Brackaville Coal (Dungannon) Brackenslack Limestone Brackish Lagoonal Deposits Brackish Water Beds [Obsolete: use STAM] Bracklesham Beds [Obsolete: use WIDS, BRB] Bracklesham Beds and Barton Clay (undifferentiated) [Obsolete: use BRBA] Bracklesham Group Bracklesham Group [Duplicate: use BRB] Bracklesham Group And Barton Group (Undifferentiated) Bracklesham Sand [Obsolete: use BRB] Bracklesham Sand/Beds [Obsolete: use BRB] Bracklinn Falls Conglomerate Member Bradford Beds [Obsolete: use FMB] Bradford Clay [Obsolete] Bradford Coal Formation Bradford Coral Bed Bradford Dale Lava Bradford Four Foot Coal (South Lancashire) Bradford Four Foot Mine Coal [Obsolete: use BR4FT] Bradford Marine Band [Local Name: see HTMB] Bradford Threequarters Coal (South Lancashire) Bradford Threequarters Mine Coal [Obsolete: use B3QC] Bradgate Formation Bradgate Tuff Formation [Obsolete: use CMBT] Bradley Coal Bradley Flags Bradley Grits [Obsolete: use BDLF] Brae Formation Brae Pluton Braemore Conglomerate Formation Braemore Lodge Sandstone Member Braemore Mudstone [Obsolete: use BRMU] Braemore Mudstone Formation Braemore Mudstone Formation And Braemore Sandstone Formation (Undifferentiated) Braemore Sandstone Formation [Obsolete: use BLSS, OA] Braemore Sandstones [Obsolete: use BLSS, BRSS] Braich tu du Volcanic Formation Braicklaich Sand Member Braicklaich Sands Member [Obsolete: use BRSA] Braid Hills Volcanic Member Braidon Bay Conglomerate Member [Obsolete: use CATC] Brainshaugh Limestone Bramhope Grit Brampton Lower Felltop Limestone [Obsolete: use NWL] Brampton Upper Felltop Limestone [Obsolete] Brand Group Brand Hills Formation Brand Series [Obsolete: use CBA] Brandon Flint Member Brandon Flint Series [Obsolete: use BFLM] Brandon Grit Brandon Sandstone Bed Brandsby Roadstone Member Brandy Craig Formation [Obsolete: use BCG] Brandy Craig Lava Formation Branksome Sand Formation Branksome Sand Formation And Selsey Sand Formation (Undifferentiated) Branscombe Mudstone Formation Bransty Cliff Sandstone Member Brant Mudstone Formation [Obsolete: use CHAM] Brantingham Formation [Obsolete: use BTF] Brantingham Member Branxton Coal (Fife) Braslyd Coal (South Wales) Braslyd Fach Coal (South Wales) Braslyd Rider Coal (South Wales) Brass Thill Coal (Durham) Brass Vein Coal (South Wales) Brassey Coal (South Lancashire) Brassington Formation Brasspoint Flint Brassy Coal (Cumbria) Brassy Mine [Obsolete: use I7FT] Brathay Flag Formation [Obsolete: use BRF] Brathay Flags [Obsolete: use BRF] Brathay Formation Brathay Formation, Birk Riggs Formation And Coldwell Formation (Undifferentiated) Brathay Formation, Birk Riggs Formation And Wray Castle Formation (Undifferentiated) Braunroter Saltzton [Obsolete: use ZECH2] Brays Silts Bed Brazilly Coal (Forest Of Dean) Breadstone Shale Formation Breadstone Shale Formation And Micklewood Beds (Undifferentiated) Breadstone Shales [Obsolete: use BDSH] Breakish Formation Breaky Bottom Flint Breakyneck Scar Limestone Formation Breccia Gravel Breccia Group [Obsolete: use CLT] Breccia of Kenilworth, Lower [Obsolete: use KBR] Breccia of Kenilworth, Upper [Obsolete: use KBR] Breccio-Conglomerate [Obsolete: use VBR] Breckells Mudstone Formation [Obsolete: use BRM] Breckells Mudstone Member Breckells Mudstones [Obsolete: use BRM] Brecknockshire Drift [Obsolete: use BNOCK, LDTI] Brecknockshire Formation [Obsolete: use BNOCK, WALES] Brecknockshire Glacigenic Formation Brecks Coal Brecon Beacons Group Brecon Subgroup [Obsolete: use COB] Breedon Breccia Breedon Member [Obsolete: use BREE] Breighton Cover Sand Formation [Obsolete: use BREI] Breighton Sand Formation Brendon Formation Brendon Hill Beds Brennand Grit Brennand Grit Formation (Lancaster District) [Obsolete: use PENDL] Brennand Grits [Obsolete: use BRNG] Brennand Grits Formation [Obsolete: use BRNG] Brent Formation [Obsolete: use BRNT] Brent Group Bressay Flagstone Formation Bressay Flagstones [Obsolete: use BYF] Bretford Member [Obsolete: use BRET] Bretford Member, Lower Facet [Obsolete: use BRETL] Bretford Member, Upper Facet [Obsolete: use BRETU] Bretford Sand and Gravel Member Bretford Sand and Gravel Member and Wasperton Sand and Gravel Member (Undifferentiated) (Warwickshire Avon) Bretford Sand And Gravel Member, Lower Facet Bretford Sand And Gravel Member, Upper Facet Bretford Terrace Deposits (Warwickshire Avon) [Obsolete: use BRET] Brewin's Bridge Microgabbro Dyke Brewood Till Formation Breydon Formation Brick clay Brickclay [Obsolete: use BCY] Brickearth [Obsolete: use FAEOL] Brickearth and Steyne Wood Clay [Obsolete: use STEYW] Brickiln Coal (North Staffordshire) Bricklieve Limestone Formation Brickworks Marine Band [Local Name: see HNMB] Bridge Farm Gravel Member Bridge Limestone Bridge Limestone [Duplicate: use BRDL] Bridgend Flags Bridges Formation Bridges Formation [Duplicate: use BRGP] Bridges Group [Obsolete: use BRGP] Bridges Sandstone Formation [Obsolete: use MEST] Bridgeton Formation [Obsolete: use BRON] Bridgeton Sand Member Bridgewick Marls (One) Bridgewick Marls (Three) Bridgewick Marls (Two) Bridgnorth Sandstone Formation Bridgnorth Sandstone Formation [Duplicate: use BRI] Bridlington Crag Bridport and Yeovil Sands [Obsolete: use BDS] Bridport Sand Formation Bridport Sands [Obsolete: use BDS] Briele Ground Formation [Obsolete: use BG] Brielle Ground Formation Brierley Coal (West And South Yorkshire) Brierley Division [Obsolete: use BRIE] Brierley Hill Cluster Brierley Member Brierley Rock Brig Formation Brig o' Balgownie Conglomerate Formation Brig O'Balgownie Conglomerate Formation [Obsolete: use BOBC] Brigantian Rocks (Undifferentiated) Bright Coal Brighton Marl Brights Coal (North Staffordshire) Brights Coal (Somerset) Brimham Grit Brimham Shale Brims Castle Dolomite Member Brims Castle Dolomitic Limestone Member [Obsolete: use BCDL] Brims Limestone Member [Obsolete: use BCDL] Brindister Flagstones Brine Extraction Bringewood Beds [Obsolete] Bringewood Beds and Lower Elton Beds Bringewood Group [Obsolete: use LBN] Brinkmarsh Beds Brinsley Coal (Nottingham and Derby) Brinsley Thin Coal (Derby) Briscloonagh Sandstone Formation Bristol Avon Valley Formation Britannia Catchments Group Britannia Sandstone Formation Britannic Marine Band [Local Name: see SOMB] Brithdir Beds [Obsolete: use BD] Brithdir Coal (Lower Leaf) (South Wales) Brithdir Coal (South Wales) Brithdir Coal (Upper Leaf) (South Wales) Brithdir Formation [Obsolete: use BD] Brithdir Member Brithdir Rider Coal (South Wales) Brithidir Breccia Brithidir Porphyry Brithion Formation Brithion Tuff [Obsolete: use BRT] British Coastal Deposits Group British Tertiary Volcanic Province Group [Obsolete] Briton's Lane Formation Briton's Lane Sand And Gravel Member Briton's Lane Sands and Gravels [Obsolete: use BRLSG] Brixham Limestone [Obsolete: use BRXL] Brixham Limestone Formation Broad Law Intrusion Broad Law Vein Broad Vein [Obsolete: use BRV] Broad Vein Formation [Obsolete: use BRV] Broad Vein Mudstone Formation Broadearth Fireclay Broadford Beds (part) [Obsolete: use LUSA] Broadford Beds Formation [Obsolete: use ADS, BRKH] Broadford Beds Formation And Pabay Shale Formation (Undifferentiated) Broadford Gabbro (Skye Eastern Red Hills Centre) Broadlee Glen Sandstone Member Broadlee Glen Sandstones Formation [Obsolete: use BRLG] Broadlie Coal Broadstairs Member [Obsolete: use SECK] Broadstone Clay Member Broadstone Limestone [Obsolete: use HUR] Broadstone Sand Member Broadstone Sand Member And Oakdale Sand Member (Undifferentiated) Brochel Member Brock Crags Andesite Formation Brock Hall Coal (Wyre Forest) Brocka Bank Grit Bröckelschiefer Member Brockholes Sandstones Brockley Down Limestone Brockley Plug Brockram Brockwell Coal (Northumberland And Durham) Brockwell Rider Coal (Northumberland And Durham) Brodick And Lamlash Beds Brodick Breccia Brodie Sandstone unit Brofiscin Oolite Formation Bromfield Sand and Gravel Bromley No. 4 Bromleysmill Shale Formation Bromleysmill Shales Formation [Obsolete: use BSF] Bromsgrove Sandstone Formation [Obsolete: use HEY] Bromsgrove Sandstone Formation, Helsby Sandstone Formation, Wildmoor Sandstone Formation And Wilmslow Sandstone Formation (Undifferentiated) Bron Y Graig Formation Bronllwyd Grit Formation Bronsil Shale Formation Bronsil Shales [Obsolete: use BRSH] Bronydd Formation Bronzite picrite dykes of the Scourie Dyke Swarm [Obsolete: use BMP] Brooch Coal (South Staffordshire) Brooch Coal (South Staffordshire) [Duplicate: use BROO] Brooch Fireclay Brooch Ironstone Brook End Sandstone Member Brook Formation [Obsolete: use SKCAT] Brook-Bottom Tuff Brooks Mill Mudstone Formation [Obsolete: use BCMU] Brooksbottom Sandstones Brooksbottoms Coal (South Lancashire) Brooksbottoms Grit Brooksby Sand And Gravel Broom Farm Sandstone Formation Broom Formation Broom Sub-Unit [Obsolete: use BROM] Broome Member Broomhill Clay Formation Broomhill Clay Member [Obsolete: use BRLL] Broomhill Formation [Obsolete: use BRLL] Broomhill Main Coal (Northumberland) Broomhill Member [Obsolete: use BRLL] Broomhouse Formation [Obsolete: use BHSE, GOHL] Broomhouse Sand and Gravel Formation Brora Arenaceous and Argillaceous Bed [Obsolete: use BRARG, BRARE] Brora Arenaceous Formation [Obsolete: use BALR, CYK] Brora Arenaceous Series [Obsolete: use CYK] Brora Arenaceous Series and upper part of Brora Argillaceous Series [Obsolete] Brora Argillaceous Formation (upper part, Fascally Siltstone Member) [Obsolete: use CYK] Brora Argillaceous Formation [Obsolete: use BALR, SSTV] Brora Argillaceous Series (upper part) [Obsolete: use CYK] Brora Argillaceous Series [Obsolete: use BRARG, SSTV] Brora Brick Clay Member Brora Coal [Obsolete: use BOCO] Brora Coal Bed Brora Coal Formation Brora Coal Member [Obsolete: use BOCO] Brora Coal, Shales, Shelly Clays and Sandstones, and 'Roof Bed' [Obsolete: use BROR] Brora Formation [Obsolete: use BETR] Brora Lower Oolite [Obsolete: use BOCO] Brora Roof Bed Brora Sandstone Member Brora Shale Formation [Obsolete: use BROR] Brora Shale Member Brotherton (Magnesian Limestone) Formation [Obsolete: use BTH] Brotherton Beds [Obsolete: use BTH] Brotherton Formation Broubster Till Member Broughderg Schists [Obsolete] Broughton Coal Broughton Moor Formation Broughton Moor Formation And Appletreeworth Volcanic Formation (Undifferentiated) Brow Vein Browgill Beds [Obsolete: use BRW] Browgill Formation Browgill Member [Obsolete: use BRW] Browgill Shales [Obsolete: use BRW] Brown And Grey Sandstone Member Brown Bank Bed [Obsolete: use BNB] Brown Bank Formation Brown Bank Ignimbrite Formation [Obsolete: use BBA] Brown Bank Tuff Formation Brown Clay with Stones [Obsolete: use CASS] Brown Howe Member [Obsolete: use BNH] Brown Howe Tuff Member Brown Metal Coal Brown Rake Coal (Nottingham And Derby) Brown Sands and Gravels [Obsolete: use BEGR] Brown's Fireclay Brown's Vein Brownber Formation Brownber Pebble Bed [Obsolete: use BNBF] Brownber Pebble Beds [Obsolete: use BNBF] Brownlow Mudstone [Obsolete] Brownstone Group [Obsolete: use BRS] Brownstones [Obsolete: use BRS] Brownstones Formation Broxburn Marls Broxburn Shale Bruar Psammite Formation [Obsolete: use GCKP] Bruce A [Obsolete: use HUGI] Bruce B [Obsolete: use HUGI] Bruce Sandstone Member Bruce Upper Sands [Obsolete: use HUGI] Brunachan Psammite Formation Brunel Beds [Obsolete: use OGH] Brunel Formation [Obsolete: use BRU] Brunton Quarry Coal (Northumberland) Brunton Quarry Sandstone Brushford Member Brutach Dearg Member Bryans Coal (Lothian) Bryn Beds [Obsolete: use BSI] Bryn Bedwen Formation [Obsolete: use CER] Bryn Brith Beds [Obsolete: use BYN] Bryn Brith Grits [Obsolete: use BYN] Bryn Brith Member Bryn Coal (South Wales) Bryn Dowsi Mudstone Bryn Nicol Formation Bryn Nicol Formation, Coed Ifan Facies Bryn Nicol Formation, Pen Derlwyn Facies Bryn Siltstone Formation Bryn Syllty Disturbed Bed Bryn Tirion Member Bryn-Crin Basaltic Trachyandesite Bryn-Glas Formation Bryn-Glas Group [Obsolete: use BGF] Bryn-Glas Mudstones [Obsolete: use BGF] Bryn-Teg Volcanic Formation Bryncoch Coal (South Wales) Bryncroes Formation Bryne Formation [Norwegian Classification: reserved for possible future use] Brynloi Coal (South Wales) Brynrefail Group Brynwhilach Two-Feet Coal (South Wales) Bryozoa Band (Ravenstonedale) Brython Glacigenic Group Bu Ness Group [Obsolete: use BNG] Bu Ness Sandstone Formation Bualintur Formation Buccleuch Limestone [Duplicate: use BUCC] Buccleuch Limestone [Obsolete: use FFL] Buchan Beds [Obsolete: use BUG] Buchan Formation Buchan Formation [Duplicate: use BUHN] Buchan Gravels Formation Buchan Gravels Group [Obsolete: use BUG] Buchan Gravels Member [Obsolete: use BURG] Buchan Ridge Gravel Member Buchanan Clay Member Buchanan Formation [Obsolete: use BCHN] Buchlyvie Sandstone Member Buck Hills Greywacke [Obsolete: use CMBG] Buck Hills Grit [Obsolete: use CMBG] Buck Hills Member Buckator Formation Buckbanks Sandstone Member Buckhaven Planolites Bed Buckholm Formation [Obsolete: use ETRK, KKHP] Buckholm Grits [Obsolete: use QBY] Buckholme Formation [Obsolete: use TLEE] Buckie Beds [Obsolete: use BUC] Buckie Formation [Obsolete: use BUC] Buckie Limestone Formation Bucklandi Clays [Obsolete: use SMD] Bucklands Clays [Obsolete: use BKHM] Buckle Marls (Five) Buckle Marls (Four) Buckle Marls (One) Buckle Marls (Six) Buckle Marls (Three) Buckle Marls (Two) Bucklebury Common Gravel Member Bucklebury Gravel [Obsolete: use BYGR] Buckley Fireclay Formation [Obsolete: use ETM] Buckstone Grit [Obsolete: use BUR] Buddon Sands [Obsolete: use KNSA] Bude Formation Bude Formation And Bideford Formation (Undifferentiated) Bude Sandstones [Obsolete: use BF] Budleigh Salterton Conglomerate [Obsolete: use BSP] Budleigh Salterton Conglomerate and Sandstone [Obsolete: use CHES] Budleigh Salterton Pebble Bed [Obsolete: use BSP, CHES] Budleigh Salterton Pebble Beds [Obsolete: use BSP] Budleigh Salterton Pebble Beds Formation [Obsolete: use CHES] Buff Coal (Bristol Area) Bught Craig Member Building Stones [Obsolete] Buildwas Beds [Obsolete: use BUI] Buildwas Formation Buildwas Formation And Coalbrookdale Formation (Undifferentiated) Builth Mudstones Formation Builth Volcanic Formation [Obsolete: use BUVO] Builth Volcanic Group Buitenbanken Formation Buldoo Flagstone Formation [Obsolete: use CKBA] Bulkeley Hill Formation [Obsolete: use BHSF] Bulkeley Hill Sandstone Formation [Obsolete: use HEY] Bull Cliff Bed Bull Coal (Somerset) Bull Crag Coal (Northumberland) Bull Gap Shales [Obsolete] Bull Vein [Obsolete: use BLLC] Bulldog Coal (South Lancashire) Buller's Hill Gravel [Obsolete: use BHGR] Buller's Hill Gravel Formation [Obsolete: use BHGR] Buller's Hill Gravel Member Bullerthorpe Lane Sandstone Bullhead Bed Bullhurst Coal (North Staffordshire) Bullhurst Rock (North Staffordshire) Bullingham Member Bullion Mine Coal (South Lancashire) Bullion Mine Rock [Obsolete: use GAS] Bullrock Greywacke [Obsolete: use DCBG] Bullrock Greywacke Formation [Obsolete: use DCBG] Bullrock Greywacke Member Bullslaughter Limestone Formation [Obsolete: use OB] Bulman Main Coal (Northumberland) Bulmer Vein Bulthy Formation Bunchrew Sandstone Member Bundoran Shale Formation Bungalow Formation [Obsolete: use CAGH] Bungilow Coal (North Staffordshire) Bunny Sand And Gravel Bunter (Undifferentiated) [Obsolete] Bunter Conglomerate Beds [Obsolete: use CHES] Bunter Pebble Beds [Obsolete: use CHES, CPB, KDM, NTC, PLWF] Bunter Sandstone [Obsolete: use SSG, CHES] Bunter Sandstone Formation Bunter Shale Formation Bunter Siltstone Member [Obsolete] Burcot Breccia [Obsolete: use HEY] Burcot Member Burdiehouse Limestone Bure Valley Beds [Obsolete: use DOBP, WRCG] Bure Valley Beds and Weybourne Crag [Obsolete: use HOWH, MUND] Bure Valley Formation Burford Coal Formation [Obsolete: use BRFC] Burford Coal Group [Obsolete: use BRFC] Burford Coal Member Burghead Beds [Obsolete: use BRSF] Burghead Sandstone [Obsolete: use BRSF] Burghead Sandstone Formation Burghie Shale Member [Obsolete: use BETR] Burghy Coal [Obsolete: use BGYC] Burgy Coal (South Lancashire) Burial Ground Buried Gravel Layer Burlington Member [Obsolete: use WRE] Burn Bridge Arenite [Obsolete: use CMBN] Burn of Benholm Peat [Obsolete: use BBP] Burn of Benholm Peat Bed Burn of Benholm Peat Member [Obsolete: use BBP] Burn Of Mar Sandstone Formation Burn Side Conglomerate Member Burncrooks Pyroclastic Member [Obsolete: use BCV] Burncrooks Volcaniclastic Member Burnfoot Bridge Coal (New Cumnock) Burnfoot Shales Burnham Chalk Formation Burnham Formation [Obsolete: use BCK] Burnhead Intrusion Burnhouse Lava Member Burnhouse Lavas [Obsolete: use BHLA] Burnhousemoor Member Burning Mount Plug Burnley Four Feet Coal Burnley Four Foot Coal (Lancashire) Burns Beds Burns Sandstone Member Burnside Formation [Obsolete: use BRN] Burnside Intrusion (Plug) Burnside Sandstone Formation Burntisland Lavas [Obsolete: use KNV] Burntisland Marine Band Burnwood Coal (North Staffordshire) Burnwood Ironstone Burra Firth Formation Burradon Coal (Northumberland) Burraton Formation Burrier Wick Till Formation Burrington Oolite Formation [Obsolete: use BO] Burrington Oolite Subgroup Burthel Beds [Obsolete: use KNN] Burtle Beds [Obsolete: use BUB] Burtle Formation Burtle Sands Beds [Obsolete: use BUB] Burton Cliff Formation [Obsolete: use LLSW] Burton Cliff Palynological Association Burton Formation Burton Joyce Marine Band Burton Lazars Head Burton Sub-Unit [Obsolete: use BURT] Burwardsley Hill Bed Burway Formation Burway Formation [Duplicate: use BUGP] Burway Group [Obsolete: use BUGP] Bush Coal (Fife) Bushley Green Sand and Gravel Member Bushley Green Terrace (Upper Part) [Obsolete: use SPHT] Bushley Green Terrace [Obsolete: use BGT] Bushley Green Terrace Deposits (River Severn) [Obsolete: use BGT] Bushley Green Terrace Deposits [Obsolete: use BGT] Bushy Coal (South Wales) Bussell's Member Bussell's Mudstone Member [Obsolete: use BUSS] Busty Coal (Northumberland And Durham) Butcombe Sandstone Butcombe Sandstone Member [Obsolete: use AS] Bute Coal (South Wales) Bute Conglomerate Formation Bute Limestone [Obsolete: use ARL] Butt Hill Member [Obsolete: use KKF] Butterby Member Butterby Till Member Buttergask Flagstone Member Buttergask Formation [Obsolete: use BTG] Buttergask Member [Obsolete: use BTG] Butterly Marine Band Buttermere Formation Buttermere Formation (Hornfelsed) Buttershaw Limestone Butterton - Swynnerton Dykes Butterton Sandstone [Obsolete: use BUTS] Butterton Sandstone Bed Butterton Sandstone Member [Obsolete: use BUTS] Buttington Mudstone Formation Buxton Rock [Obsolete: use BUR] Buxton Rock Member Bwlch Groes Porphyritic Microgranite Bwlch Mawr Microgranodiorite Intrusion Bych Beds Bychton Two Yard Coal (North Wales) Bydown Chert [Obsolete: use COH] Byestead's Sandstone Byley Mudstone Formation [Obsolete: use BYM] Byley Mudstone Formation And Wych Mudstone Formation (Undifferentiated) Byley Mudstone Member Byne Hill Granite [Obsolete: use BYNE] Byne Hill Intrusion Byth Gravel [Obsolete: use HOBGR] Byth Till [Obsolete: use BYTIL] Byth Till Formation Bytham Catchments Subgroup Bytham Formation [Obsolete: use BYTH] Bytham Sand and Gravel Formation Bytham Sands and Gravels [Obsolete: use ISAG] Bytham Sands and Gravels Formation [Obsolete: use BYTH] Bytham Sands and Gravels; Unit 2, Shouldham Sands of Lewis, p. 127-130 in Lewis et al., 1991 [Obsolete: use FOGR] C Sands [Obsolete: use PNTL] C-Bed Evaporite C2 and C2-3 Slate [Obsolete: use TVS] Caaf Water Limestone Formation Caban Conglomerate Formation Caban Conglomerate Formation (formerly Facies) [Obsolete: use CBN] Caban Conglomerate Formation (Lower Conglomerate Of Lapworth) Caban Conglomerate Formation (Upper Conglomerate Of Lapworth) Caban Conglomerate Formation: Caban Conglomerate Facies Caban Conglomerate Formation: Fifth Sequence Of Caban Conglomerate Facies Caban Conglomerate Formation: First Sequence Of Caban Conglomerate Facies Caban Conglomerate Formation: Fourth Sequence Of Caban Conglomerate Facies Caban Conglomerate Formation: Second Sequence Of Caban Conglomerate Facies Caban Conglomerate Formation: Third Sequence Of Caban Conglomerate Facies Caban Conglomerates [Obsolete: use CBN] Caban Group [Obsolete] Cabrach Sandstone [Obsolete: use CAB] Cabrach Sandstone Formation Caburn Beds Caburn Flints Caburn Marl Caburn Sponge Bed Cadbury Beds [Obsolete: use CYBR] Cadbury Breccia Formation Cadder Clay Member [Obsolete: use CADR] Cadder Formation [Obsolete: use CADR] Cadder Sand and Gravel Formation Cadder Sand Formation [Obsolete: use CADR] Caddroun Burn Beds Cadeby (Magnesian Limestone) Formation [Obsolete: use CDF] Cadeby Formation Cadell's Parrot Coal Cademan Volcanic Breccia Member Cadgers Loan Rock [Obsolete: use CDLS] Cadgers Loan Sandstone Cadh'-an-Righ Shale Member Cadham Craw Coal Cadham Little Coal Cadham Main Coal Cadham Under Coal Cadnant Shales [Obsolete: use NOG] Cadnant Shales Formation [Obsolete: use NOG] Cae Adda Volcanic Formation [Obsolete: use POTRF] Cae Castell Formation Cae'r-Mynach Formation Caedavid Coal (South Wales) Caenlochan Schist Formation Caer Beris Member Caer Caradoc Andesites [Obsolete] Caer Caradoc Rhyolites [Duplicate: use UCCR] Caer Caradoc Rhyolites [Obsolete] Caerau Coal (South Wales) Caerau Formation And Blaen Myherin Mudstones Formation (Undifferentiated) Caerau Mudstones Formation Caerau Mudstones Formation (Lower Tongue) Caerau Mudstones Formation (Upper Tongue) Caerbwdy Group Caerbwdy Sandstone Formation Caerbwdy Sandstone Formation And Solva Group (Undifferentiated) Caerbwdy Series [Obsolete: use PVC] Caered Flags [Obsolete: use CRAD] Caerfai Bay Shales Formation Caerfai Beds [Obsolete: use CIS] Caerfai Formation [Obsolete: use CIS] Caerfai Group Caerfai Series [Obsolete: use CIS] Caergribin Rhyolite Intrusion Caerhys Shale Formation Caerketton Group [Obsolete: use CAE] Caerketton Volcanic Group [Obsolete: use CAE] Caerketton Volcanic Member Caernarfon Bay Formation Caesar's Camp Formation [Obsolete: use CCGR] Caesar's Camp Gravel [Duplicate: use CCGA] Caesar's Camp Gravel [Obsolete: use CCGR] Caesar's Camp Gravel Formation Cailleach Head Formation Cairfai Bay Shales Formation [Obsolete: use CFBS] Cairn Gibbs Psammite Formation Cairn Liath Quartzite Member Cairn Of Claise Transition Formation Cairn Trench Intrusion Cairnbulg Diorite Cairndinnis Plug Cairnerzean Formation [Obsolete: use GDF] Cairnfield Actinolitic Flags [Obsolete: use CCFL] Cairnfield Calcareous Flag Formation Cairngarroch Intrusion Cairngorm Granitic Suite [Obsolete: use CGMGR] Cairngorm Pluton Cairngorm Pluton, Phase 1 Cairngorm Pluton, Phase 2 Cairngorm Pluton, Phase 3 Cairngorm Pluton, Phase 4 Cairngorm Pluton, Phase 5 Cairngorm Pluton, Phase 6 Cairnharrow Formation Cairns Of Ord Intrusion Cairnsmore Of Carsphairn Pluton Cairnsmore of Fleet Granite [Obsolete: use COFG] Cairnsmore Of Fleet Pluton Cairnwell Quartzite Formation Caister Coal Formation Caithness Flagstone Group Caithness Flagstone Series [Obsolete: use LCF, LSF, UCF, USF] Caithness Shelly Drift [Obsolete: use FOTI] Caithness Shelly Till Calcareous Conglomerate Group [Obsolete: use EN] Calcareous Grit [Obsolete: use ECG] Calcareous Grit, Lower [Obsolete: use LCG] Calcareous Group (Lower Culm Measures) [Obsolete: use TCH] Calcareous Sandstone Bed [Obsolete: use NANN] Calcareous Series, Durness Limestone, Durness Limestone or Dolomite [Obsolete: use DNG] Calcareous Shale Member Calcareous tufa Calciferous Sandstone [Obsolete: use BYC] Calciferous Sandstone Measures [Obsolete: use INV, SYG] Calcite Mudstone Group [Obsolete: use LLY] Calcrete Caldecote Volcanic Formation Caldecote Volcanic Series [Obsolete: use CAV] Calder Mudstone Formation [Obsolete: use CDMM] Calder Mudstone Member Calder Sandstone Formation [Obsolete: use WLSF] Calders Member Caldon Low Conglomerate Member Caldron Hill Sill Caledonia Glacigenic Group Caledonian Igneous Suite [Obsolete: use CIGSS] Caledonian Igneous Supersuite [Obsolete: use CIGSS] Caledonian Supersuite Calettwr Quartzite [Obsolete: use CAQ] Calettwr Quartzite Member Calettwr Quartzite Member And Hirnant Limestone Member (Undifferentiated) Caley Crags Grit Calhame Limestone California Clayband Ironstones California Glacigenic Group California Quarry Formation [Obsolete: use BTN] California Till Member Calke Abbey Sandstone Formation Callan Group Callander Craig Conglomerate [Obsolete: use CCCO] Callander Craig Conglomerate Member Callant Limestone Callovian And Oxfordian Rocks (Undifferentiated) Calmstone Coal (Sanquhar) Calmy Limestone Calne Freestone and Coral Rag [Obsolete: use STFD] Calne Sands Formation Calp Limestone Group Calp Limestone of the Calp or Middle Limestone [Obsolete: use GRLF] Calp Or Middle Series [Obsolete] Calp Sandstone of the Calp or Middle Limestone [Obsolete: use MMS] Calp Shale of the Calp or Middle Limestone [Obsolete: use BBSF] Calton Limestone [Obsolete: use MI] Cam Crags Sandstone Member Cam Spout Tuff Cam Spout Tuff Member [Obsolete: use CPT] Cam Valley Formation Camas Chil Mhalieu Formation Camas Malag Formation Camasunary Sandstone Member Camasunary Siltstone Member Cambeck Beds [Obsolete: use CMBB] Cambeck Member Camberley Sand Formation Cambir Dolerite Sheet-Swarm Cambois Little Coal (Northumbria) Cambrian And Ordovician Rocks (Undifferentiated) Cambrian Quartzite [Obsolete: use MCQ] Cambrian Rocks (Undifferentiated) Cambridge Bed [Obsolete: use CBG] Cambridge Greensand [Obsolete: use CBG] Cambridge Greensand Member Cambriense Marine Band Cambuslang Marble Camderry Member Camlo Hill Group [Obsolete: use NTM] Camnant Mudstone Formation Camnant Mudstones Formation [Obsolete: use CTE] Camp Fauld Till Formation Campanian Rocks (Undifferentiated) Campbell Park Marine Band Camphill Gelifluctate Bed Camphill Limestones Camphouse Quartz-Dolerite Intrusion Camps Shale Campsie Claybands Campsie Dyke Campsie Formation [Obsolete: use CMPL] Campsie Lava Member Campsie Limestone Member Camregan Group [Obsolete: use DLY] Camregan Limestone, Upper [Obsolete: use WOB] Canal Cutting Canal Embankment Canaston Beds Cancelloceras cancellatum Marine Band Cancelloceras cancellatum Marine Band [Duplicate: use G1A1] Cancelloceras cumbriense Marine Band Cancelloceras cumbriense Marine Band [Duplicate: use G1B1] Cancer Coal Candleston Oolite [Obsolete: use BFO] Caninia Dolomite [Obsolete] Caninia Oolite [Obsolete: use GUO] Caninia Shales and Dolomite [Obsolete: use CDM] Canisp Porphyry Sills Cann Sand Member Cann Wood Slate Formation [Obsolete: use TVY] Canna Formation Canna Lava Formation Cannapark Limestone [Obsolete: use TCH] Cannel Coal (Cumbria) Cannel Coal (In Pennine Lower Coal Measures South Lancashire) Cannel Coal (In Pennine Middle Coal Measures South Lancashire) Cannel Coal (Leicestershire) Cannel Coal (Machrihanish) Cannel Coal (Midgeholm) Cannel Coal (North Wales) Cannel Mine Coal [Obsolete: use CCSL] Cannel Mine Marine Band [Local Name: see MFMB] Cannel Rock (South Lancashire) Cannel Row Coal (North Staffordshire) Cannel Seam [Obsolete Code: Do Not Use] Cannock Chase Formation [Obsolete: use CHES] Canonbie Bridge Sandstone Formation Canonbie Five Foot Coal Canonbie Nine Foot Coal Canonbie Seven Foot Coal Canonbie Six Foot Coal Canonbie Three Foot Coal Cantray Till Member Canty Bay Sandstone Caochandye Quartzite Member Caoilte Formation Caoilte Sequence [Obsolete: use CAOL] Caoilte Subsequence [Obsolete: use CAOL] Cape Shore Formation Cape Wrath Sandstone Member Capel Curig Volcanic Formation Capel Parc Formation Capelaw Acid Volcanic Formation Capelaw Basic Group and Capelaw Acid Group [Obsolete: use CPW] Capelaw Basic Volcanic Formation Capelaw Volcanic Formation [Obsolete: use CPW] Capelaw Volcanic Member Capistal Psammite Formation Capledrae Parrot Coal Caprington Sill Captain Sandstone Member Captain's Bridge Limestone Captain's Fireclay Caradoc And Ashgill Rocks (Undifferentiated) Caradoc Rocks (Undifferentiated) Caradoc Shales Caran Sandstone unit Carbeth Lava Member Carbeth Lavas [Obsolete: use CBTL] Carbonaceous Group [Obsolete: use DBPB] Carboniferous And Permian Rocks (Undifferentiated) Carboniferous Lavas [Obsolete: use GEIL] Carboniferous Limestone (Series) [Duplicate: use -2703] Carboniferous Limestone [Obsolete: use CL, PKLM, CLWYD, PEMB, BOHI, HOHI, TRLI] Carboniferous Limestone Series [Obsolete: use CKN, CLWYD, PKLM] Carboniferous Limestone Supergroup Carboniferous Rocks (Undifferentiated) Carboniferous-Permian Extensional Supersuite Carbost Conglomerate Member Cardiaster Beds [Obsolete: use PRC] Cardiff Group Cardigan Bay Formation Carding Mill Grit [Obsolete: use CDDG] Cardingmill Grit [Obsolete: use CDDG] Cardingmill Grit Member Careg Onen Formation Careg-Onen Beds [Duplicate: use CGO] Careg-Onen Beds [Obsolete: use OCO] Careg-Onen Limestone Formation [Obsolete: use LEEL] Careg-Wiber Volcanic Formation Carewoodrig Vent Carey Beds [Obsolete: use CYSI] Carey River Basalt Formation Carey Silt Member Carganamuck Limestone Formation Carghidown Beds [Obsolete: use CGD] Carghidown Formation Carham Limestone [Obsolete: use CHML] Carham Limestone Bed Carham Stone [Obsolete: use CHML] Carhurlie Coal Carland Sandstone Member Carlandcheek Vent Carlane Sandstone Formation Carleton Hall Clay Member Carleton Silt Formation Carlinden Formation [Obsolete: use CARL] Carlinden Shale Formation Carlingford Complex Carlingford Limestone Group Carlops Oil-Shale Carlops Shale Carlton Formation [Obsolete: use GUN] Carlton Formation and Harlequin Formation [Obsolete: use GUN] Carluke Coals Carluke Tower Coal (Central Coalfield) Carlyle Beds Carmel Formation [Obsolete: use CMEL] Carmel Group [Obsolete: use SCC] Carmel Head Gneiss Package Carmel Member Carmichael Burn Formation Carmichael Burn Group [Obsolete: use CARM, CMBN] Carmichael Group Carmill Gas Coal Carn A'Chlamain Member Carn A'Ghaill Member Carn An Daimh Transitional Member Carn Brea Intrusion Carn Chuinneag - Inchbae Augen Gneiss [Obsolete: use CCIA] Carn Chuinneag and Inchbae Augen Gneiss Carn Dubh Quartzite Member Carn Fadryn Quartz Microdiorite Carn Fadryn Suite Carn Gorm Pegmatite Suite Carn Limestone Member Carn Llidi Gabbro Carn Llidi Intrusion [Obsolete: use CLIN] Carn Llundain Formation Carn Mairg Quartzite [Obsolete: use DBCM] Carn Mairg Quartzite Formation Carn Marth Intrusion Carn Monadh Gravel Formation Carn Mor Sandstone Member Carn Odhar Granite Cupolas Carn Powell Facies (of Black Cock Beds) [Obsolete: use CWGL] Carn Powell Facies [Obsolete: use CWGL] Carn Powell Member Carn Teikever Granite Carn y Parc Formation [Obsolete: use CEI] Carn-y-Parc Formation [Duplicate: use CYP] Carnallitic Marl Carnamuck Formation Carnaneigh Green Beds Carnbroe Marine Band (Central Coalfield) Carnduff Halite Carne Formation Carneal Plug [Obsolete] Carnedd Iago Formation [Obsolete: use ALL] Carnedd Y Filiast Grit Member Carneddau Group [Duplicate: use CAU] Carneddau Group [Obsolete] Carneddau Volcanic Formation Carneddol Rhyolitic Tuff Formation Carnethy and Hillend Group [Obsolete: use CAHI] Carnethy and Hillend Volcanic Formation [Obsolete: use CAHI] Carnethy Volcanic Member Carnhill Mugearite Carnmenellis Intrusion Carnmoney Plug Carnmore Sandstone Member Carnteel Formation [Obsolete] Carpenters Farm Gravel Member Carperstane Sill Carr House Coal (West Yorkshire) Carr Member Carrack Formation Carraig Artair Member Carraun Shale Formation Carraun Shale Formation And Dergvone Shale Formation (Undifferentiated) Carreg Bica Mudstone Member Carreg Yr Imbill Dolerite Carreg-Y-Llam Microgranodiorite Intrusion Carrick O'Hara Formation Carrick Volcanic Formation Carrick-A-Rade Tuff [Obsolete] Carrickabrackan Plug Carrickaness Sandstone Formation Carrickarade Vent Carrickarnan Complex Dolerites Carrickarnan Complex Granophyres Carrickateane Formation Carrickfergus Dyke [Obsolete] Carrickmacsparrow Limestone Member Carrickmore Blackband Ironstone Carrickmore Dyke [Obsolete] Carrickmore Granite Carrickmore Marine Band [Obsolete: use CRKM] Carrickmore Sandstone Group Carrickmore Shale Member Carriteth Coal (Northumberland) Carrock Diabase [Obsolete: use CFCOC] Carrock Fell Complex Carrock Fell Complex (Mosedale Division) [Obsolete: use CFCOM] Carrock Gabbro-Microgranite Division [Obsolete: use CFCOC] Carrock Gabbro-Microgranite Intrusions Carrock Granophyre [Obsolete: use CFCOC] Carrock Series [Obsolete: use CFCOC] Carron Basalt Formation Carron Bridge Lava Member Carron Bridge Lavas [Obsolete: use CBRL] Carron Formation [Obsolete: use CRN] Carron Sandstone Formation Carronrigg Smithy Coal (Drumbowie) Carscallon Sandstone Carse Clay [Obsolete: use COGW, COSCL] Carse Clay Formation Carse Clay, Claret Formation Carse of Gowrie Clay Member [Obsolete: use COGW] Carse of Gowrie Member Carse of Stirling Clay Member Carse's Vein Carsey Coal Carsluith Intrusion Carsphairn Conglomerate Member Carsphairn Rudite Formation [Obsolete: use CAPH] Carstone (Isle of Wight) [Obsolete: use MBSA] Carstone [Obsolete: use CA] Carstone Formation Carstone Grit [Obsolete: use CA] Carstone Grit of the Langton Series [Obsolete: use CA] Cartlett Beds Carvichen Pluton Carw Formation [Obsolete: use TGN] Carway Fach Coal (South Wales) Carway Fawr Coal (South Wales) Cascade Beds [Obsolete: use CSC] Cascade Conglomerate Member Cascade Grits and Conglomerates [Obsolete: use CSC] Cascade Member Cassie Till Formation Cast Bed Cast Castle Formation Castell Coch Limestone [Obsolete: use CCL] Castell Coch Limestone Formation Castell Crug Porphyritic Microgranite Castell Formation Castell Limestone Formation Castell March Formation Castle Coal (Douglas) Castle Cornet Gneiss Castle Eden Fissure-fill Formation Castle Espie Group Castle Espie Limestone Formation [Obsolete: use CASP] Castle Formation Castle Haven Conglomerate Member Castle Head Dolerite Castle Hill Beds Castle Hill Flints Castle Hill Formation [Obsolete: use GNF] Castle Hill Marls (One) Castle Hill Marls (Three) Castle Hill Marls (Two) Castle Hill Plug Castle Member [Obsolete: use CASSG] Castle Of Cowie Member Castle Point Member Castle Point Pelite Formation Castle Rocks Vent Castle Sand and Gravel Member Castlecary Limestone Castledikes Sandstone Castledykes Sandstone [Obsolete: use DBR] Castleford Four Foot Coal Castlehead Coals Castlehead Lower Coal Castlehead Upper Coal Castleton Limestones [Obsolete] Castletown Formation-Knockrushen Member [Obsolete: use KNRN] Castletown Limestone Castlewood Limestone Caswell Bay Mudstone Formation Caswell Bay Oolite Formation [Obsolete: use GUO] Caswell Bay Oolite Formation And Caswell Bay Mudstone Formation (Undifferentiated) Cat Cleuch Formation Cat Gill Limestone Catcraig Limestone Catgill Wood Sand And Gravel Member Cathcart Sill Cathkin Braes Lava Member Caton Coal Grit [Obsolete: use WRST] Caton Shale [Obsolete: use SILS] Caton Shale Formation [Obsolete: use CSH] Caton Shale Member [Obsolete: use CSH] Caton Shales [Obsolete: use CSH] Catriona Formation Catriona Sequence [Obsolete: use CATR] Catsbit Limestone [Obsolete: use GL] Catshole Vein Coal (Pembrokeshire) Cattedown Member Catterline Conglomerate Formation Catterpallot Formation Catton Coal Cauldon Low Limestone [Obsolete] Causemountain Formation Causeway Tholeiite Member Cautley Mudstone Formation Cautley Mudstone Formation And Ashgill Formation (Undifferentiated) Cautley Volcanic Formation [Obsolete: use CTV] Cautley Volcanic Group [Obsolete: use CTV] Cautley Volcanic Member Cave Deposits Cave Oolite [Obsolete: use ULL] Cave Oolite Member [Obsolete: use CVO] Cave Rock Member Cavenham Member Caw Formation [Obsolete: use CWT] Caw Mill Sandstone Caw Sandstone Formation Caw Tuffs [Obsolete: use CWT] Cawdale Member [Obsolete: use CAWD] Cawdale Tuff Member Cawdor Group [Obsolete: use BSG, EYL] Cawdor Limestone [Obsolete: use EYL] Cawk Cove Member [Obsolete: use CWK] Cawk Cove Sandstone Member Cawledge Bend Limestone Cayton Bay Formation [Obsolete: use LEBB] Cayton Clay Formation Cayton Clay Formation and Cornbrash Formation (Undifferentiated) [Duplicate: use CBCA] Cayton Gill Beds [Obsolete: use CGI] Cayton Gill Shell Bed Ceardaich Sand and Gravel Formation Cefn Bryn Shales [Obsolete: use AVO] Cefn Coch Grit Member Cefn Coed Marine Band [Local Name: see AGMB] Cefn Einion Formation Cefn Formation Cefn Glas Coal (South Wales) Cefn Goch Grit [Obsolete: use CEG] Cefn Gwyn Tuff Cefn Gwyn Tuff Member [Obsolete: use CGTU] Cefn Hir Ashes [Obsolete: use CFH] Cefn Hir Member Cefn Mawr Limestone Formation Cefn Rock Cefn-Y-Fedw Sandstone [Obsolete: use CFS] Cefn-y-fedw Sandstone Formation Cefn-Y-Fedw Sandstone Group [Obsolete: use CFS] Cefn-Y-Fedw Series [Obsolete: use CFS] Cefngarreg Sandstone Formation Cefnnantmel Member Cefnyrhendy Oolite Member Ceinwen And Llanddwyn Spilitic Formation Ceiriad Formation Ceiswin Mudstone [Obsolete: use CSW] Ceiswyn Beds [Obsolete: use CSW] Ceiswyn Formation Ceiswyn Formation And Nod Glas Formation (Undifferentiated) Celtic Palaeogene Minor Intrusion Suite Celyn Beds Cemaes Group Cement Fireclay Cement-Stone [Obsolete: use NGRC] Cementstone Formation Cementstone Group [Duplicate: use CMST] Cementstone Group [Obsolete: use INV, BGN, CMNT] Cemetery Beds [Obsolete: use KC] Cemetery Coal (Burnley) Cemlyn Bay Formation Cennen Beds [Obsolete: use CEB] Cennen Formation Cenomanian And Turonian Rocks (Undifferentiated) Cenomanian Greensand [Obsolete: use MOGR] Cenomanian Limestone [Obsolete: use BRHD] Cenomanian sands [Obsolete: use MYS] Cenrhos Coal (South Wales) Centr Central Anglesey Gneiss Complex Central Anglesey Shear Zone [Obsolete: use PENMY] Central Anglesey Shear Zone And Berw Shear Zone (Undifferentiated) Central Cumbria (Albion) Glacigenic Subgroup Central Cumbria Drift Group [Obsolete: use CCGL, CCAG] Central Cumbria Glacigenic Subgroup Central Grampian (Albion) Glacigenic Subgroup Central Grampian Drift Group [Obsolete: use CGAG, CGDR, IAG, INVG] Central Grampian Glacigenic Group [Obsolete: use CGDR] Central Grampian Glacigenic Subgroup Central Group [Obsolete: use MULC] Central Highland Division [Obsolete: use GLBA, CEHI] Central Highland Migmatite Complex [Obsolete: use BADN] Central Highland Migmatites [Obsolete: use CEHI] Central Intrusion (Rum Layered Suite) Central Intrusion (Rum Layered Suite) [Duplicate: use RLC] Central Monzogranite Facies, Starav Intrusion Central Scotland Late Carboniferous Tholeiitic Dyke Swarm Central Starav Granite [Obsolete: use CSTAR] Central Wales Drift [Obsolete: use ELTI, MNTI, PLYNT] Centre 1 (Ardnamurchan Complex) [Obsolete: use ARD1] Centre 1 Cone-Sheet-Swarm Centre 2 (Ardnamurchan Complex) [Obsolete: use ARD2] Centre 2 Inner Basic Cone-Sheet-Swarm Centre 2 Outer Basic Cone-Sheet-Swarm Centre 3 (Ardnamurchan Complex) [Obsolete: use ARD3] Centre 3 Basic Cone-Sheet-Swarm Centre 3 Layered Gabbro Lopolith Cephalaspis Sandstone-Cornstone Cephalopod Bed Cephalopod Limestone Cerdic Formation Cerdic Sand [Obsolete: use NRD] Cerdic Shore [Obsolete: use NRD] Ceres Thick Coal Cerig Formation Cerrig Brith Formation Cerrig Gwynion Grits Facies (Caban Conglomerate Formation) Cerrig Gwynion Grits Member [Obsolete: use CYG] Cerrigwynion Grits [Obsolete: use CYG] Cethings Sandstone Member Ceunant Slates Chaigley Limestone Member Chalbury Glauconitic Member Chale Clay Member Chalfield Oolite Formation Chalfield Oolite Formation and Corsham Limestone Formation (Undifferentiated) Chalk Group Chalk Marl [Obsolete: use WMCH, BRHD] Chalk of Morvern [Obsolete: use GRIB] Chalk Of Mull - Morvern [Obsolete: use GRIB, IHEB] Chalk Rock [Obsolete: use CKR] Chalk Rock Formation [Obsolete: use CKR] Chalk Rock Member Chalk Silt Chalk with Flints (lower part) [Obsolete: use WCK] Chalk with Flints (Upper Part) [Obsolete: use BCK] Chalk Without Flints [Obsolete: use FCK, FYCK] Chalk, Lower (now Lower Chalk Formation) [Obsolete: use LCK] Chalk, Middle (now Middle Chalk Formation) [Obsolete: use MCK] Chalk, Undivided, Upper (Now Upper Chalk Formation) [Obsolete: use UCK] Chalkey Coal (North Staffordshire) Chalky Boulder Clay [Obsolete: use ODT] Chalky Gravel Chalky Series [Obsolete: use WOY] Chalky Siltstone Member Chalky Till Chalmerston Coal (Dalmellington, South Ayrshire) Chama Sand [Obsolete: use CHMS] Chama Sand Formation Chama Sand Member [Obsolete: use CHMS] Chamber Rock Champfleurie Shale Chance Pennystone Marine Band [Local Name: see AGMB] Changue Formation [Obsolete: use DLR] Channel-Fill Deposits Channelbush Coal Channelbush Limestone Chanter Member [Obsolete: use CHNT] Chanter Sandstone Member Chapel Den Conglomerate Formation [Obsolete: use CATC] Chapel House Coal (Northumberland) Chapel House Limestone Formation Chapel Point Limestone [Obsolete: use MAHO] Chapel Point Limestone Member Chapelburn Coal Chapelgreen Coal Chapelhall Lower Fireclay Chapelhall Upper Fireclay Chapelknowe Till Formation Chapelton Burn Member Charlbury Limestone Member Charles Coal (South Staffordshire) Charles Hill Volcanic Beds [Obsolete: use CHVO] Charles Hill Volcanic Member Charles Marine Band [Local Name: see AGMB] Charlestown Green Limestone Charlestown Main Limestone [Obsolete: use BLLS] Charlestown Station Limestone [Obsolete: use HUR] Charlotte Coal (South Lancashire) Charlotte Mine Coal [Obsolete: use CHTC] Charmandean Flint Charmouth Mudstone Formation Charmouth Mudstone Formation And Dyrham Formation (Undifferentiated) Charmouth Mudstone Formation, Dyrham Formation And Marlstone Rock Formation (Undifferentiated) Charmouth Mudstone Formation, Dyrham Formation, Marlstone Rock Formation And Whitby Mudstone Formation (Undifferentiated) Charnian Supergroup Charnwood Lodge Agglomerate Member [Obsolete: use CMCL] Charnwood Lodge Member [Obsolete: use CMCL] Charnwood Lodge Volcanic Formation Chase Coals (South Staffordshire) Chatburn Limestone Formation Chatburn Limestone Formation And Thornton Limestone Member (Undifferentiated) Chatburn Limestone Group [Obsolete: use CHL] Chatburn Limestone Group And Worston Shale Group (Undifferentiated) Chatelherault Sandstone Chatsworth Grit Chatwall Flags Chatwall Flags And Chatwall Sandstone (Undifferentiated) Chatwall Sandstone Chavery Coal (Derbyshire And South Yorkshire) Chavery Coal (Lower Leaf) Chavery Coal (Upper Leaf) Cheadle Breccias [Obsolete: use HUN] Cheddar Limestone Formation [Obsolete: use CDL, CDRL] Cheddar Limestone Member Cheddar Oolite Formation [Obsolete: use CDRO] Cheddar Oolite Member Cheddleton Sandstones Chee Tor Limestone Member Chee Tor Rock [Obsolete: use CT] Chee Tor Rock Member [Obsolete: use CT] Cheese Bay Sill Cheeveley Coal (Northumberland) [Local Code: Use BPLY] Cheevely [Obsolete: use BPLY] Chelford Formation [Obsolete: use CHFDS] Chelford Sand Formation Chelsfield Gravel [Obsolete: use CHGR] Chelsfield Gravel Formation Cheltenham Limestone Member Cheltenham Sand and Gravel Cheltenham Sands [Obsolete: use CHSG] Chemical deposits Chemiss Coal (Fife) Chemiss Den Marine Bed Chemnitzia Oolite/Limestones [Obsolete: use MTOL] Cheney Longville Flags [Obsolete: use CHLF] Cheney Longville Formation Chenier deposits Chercombe Bridge Limestone Formation Chert And Black Shale With Sandstone Bands [Within HBS] Chert Beds (Of Devon) [Obsolete] Chert Beds (Of Flint) [Obsolete] Chert Beds (Of West Cumberland) Chert Beds [Obsolete: use BHC, PECH, COH, SHWK, WHCH] Chert Bodies in Crocaden Sandstone Formation [Obsolete: use TCH] Chert Formation [Obsolete: use BPLM] Chert Series [Obsolete: use TCH] Cherty Beds [Obsolete: use POCH] Cherty Rock of Stotfield [Obsolete: use STOT] Cherty Series [Obsolete: use POCH] Cherty Shale (Llangollen) [Obsolete: use CFS] Cherwerfri Formation Cheshire - North Wales Catchments Subgroup Cheshire Coal (South Lancashire) Chester Formation Chester Pebble Beds Formation [Obsolete: use CHES] Chester'S Quarry Sill Cheviot Dyke Swarm Cheviot Glacigenic Subgroup Cheviot Lavas [Obsolete: use CHEV] Cheviot Pluton Cheviot Volcanic Formation Cheviot Volcanic Group [Obsolete: use CHEV] Cheviot Volcanic Series [Obsolete: use CHEV] Chevithorne Breccias [Obsolete] Chick Coal (Bristol Area) Chicksgrove Limestone Member [Obsolete: use TIY] Chicksgrove Member [Obsolete: use TIY] Chief Limestone Group [Obsolete: use AG, GSCL] Chiefswood Vent Child Okeford Sand Member Chillesford Beds [Obsolete: use CFB] Chillesford Church Sand Member Chillesford Clay [Obsolete: use CFC] Chillesford Clay Member Chillesford Member Chillesford Sand [Obsolete: use CFB] Chillesford Sand Member [Obsolete: use CFB] Chilmark Member Chilmark Oolite Member [Obsolete: use CHK] Chilton Stone [Obsolete: use TTST] China Coal (Falkirk; Central Coalfield) China Coal (Lancashire) China Mine Coal [Obsolete: use CHNC] China Mine Rock [Obsolete: use CHMR] China Rock Chinastones Chipping Norton Formation [Obsolete: use CNL] Chipping Norton Limestone [Obsolete: use CNL] Chipping Norton Limestone Formation Chipping Norton Limestone Formation And Rutland Formation (Undifferentiated) Chirbury Formation [Obsolete: use CBY] Chirbury Group Chirbury Series [Obsolete: use CBY] Chirdon No.1 Coal Chirdon No.1 Limestone Chirdon No.2 Coal Chirdon No.2 Limestone Chlorite Sands and Sandstones [Obsolete: use CLLW] Chloritic Marl [Obsolete: use BRHD, CBG, GLML] Chloritic Sands and Sandstones [Obsolete: use KOS] Chonetes Polita Limestone Chonetes Shale Chopping Victoria Coal Choppington Brockwell Coal Choppington Brookwell Coal Chorleywood Gravel Member Christchurch Member Christy's Walls Coal Chudleigh Group Chudleigh Knighton Clay And Sand Member Chudleigh Limestone Church Bay Tuff Formation [Obsolete: use NXCT] Church Bay Tuffs [Obsolete: use POTRF] Church Bay Tuffs And Skerries Grits (Undifferentiated) Church Door Buttress Breccias Church Hill Dyke [Obsolete] Churchway Coal (Forest Of Dean) Churston Member Churwell Thick Coal (West Yorkshire) Churwell Thin Coal (West Yorkshire) Chwarel Goch Facies [In Ystrad Meurig Grits Formation] Chwarelau Coal (North Wales) Chwefri Formation Ciger Coal Rock Cil-yr-ychen Limestone [Obsolete: use DWL] Cilan Formation Cilan Grits (In Part) [Obsolete: use CIG] Cilan Grits [Obsolete: use CIG] Ciliau Formation Cille Coals (Undifferentiated) (South Wales) Cille No.1 Coal (South Wales) Cille No.2 Coal (South Wales) Cille No.3 Coal (South Wales) Cille No.5 Coal (South Wales) Cilmaenllwyd Coal (South Wales) Cinder Bed Cinder Beds [Obsolete] Cinder Bench Coal (South Staffordshire) Cinder Coal (South Staffordshire) Cinderford Formation [Obsolete: use CIFD] Cinderford Member Cinderhill Main Coal (Nottingham And Derby) Cistern Coal City Sandstone Member Clach Alasdair Conglomerate Member Clach Leatad Pluton Clachaig Semipelite And Psammite Formation Clachghlas Granite Clachnaben Granite (Mount Battock Pluton) Clachtoll Formation Clackmannan Blackband Clackmannan Diamond Coal Clackmannan Forty Inch Coal Clackmannan Four Foot Coal Clackmannan Group Clackmannan Jewel Coal Clackmannan Lower Five-Foot Coal (Clackmannan) Clackmannan Musselband Coal Clackmannan Nine Foot Coal (Clackmannan) Clackmannan Two Foot Coal Clackmannan Upper Five Foot Coal (Clackmannan) Clackmannan Yard Coal Claddens Dyke Clady Limestone Member Claerwen Group Clair Group Claisfearn Semipelite Clanyard Bay Formation Clanyard Formation Clap Round Facies Formation Claragh Sandstone Formation Claragh Sandstone Group [Obsolete: use CLSG] Clarborough Beds [Obsolete: use CLB] Clarborough Formation [Obsolete: use CLB] Clarborough Member Claret Beds [Obsolete: use CTCL] Claret Clay Member Clashbenny Formation [Obsolete: use GEF] Clashindarroch Formation Clashnoir Semipelite Formation Clattering Band Clauchland Sill (South Arran) Claudy Formation Claughton Flag Series [Obsolete: use BACB] Claughton Flags [Obsolete: use CLAU] Claughton Formation [Obsolete: use SILS, CLAU] Claughton Member Claughton Moor Shales [Obsolete: use CLMS] Claughton Moor Siltstone Member [Obsolete: use CLMS] Claughton Moor Siltstones Clava Lodge Clay Member Clava Mudstone Member Clava Sand Member [Obsolete: use DROY] Clava Shelly Clay Member [Obsolete: use CLOCL] Clava Shelly Formation Clava Shelly Till [Obsolete: use CLST] Clava Shelly Till Member [Obsolete: use CUTI] Clavellata Beds [Obsolete: use CLR] Clavellata Beds Formation [Obsolete: use CLAV] Clavellata Formation Claxby Beds [Obsolete: use CI] Claxby Ironstone [Obsolete: use CI] Claxby Ironstone Formation Claxby Ironstone Formation and Hundleby Clay Member (Undifferentiated) Claxby Ironstone Formation And Tealby Formation (Undifferentiated) Claxby Ironstone Formation, Tealby Formation And Roach Formation (Undifferentiated) Clay Coal (S Yorkshire) Clay Coal (South Wales) Clay Cross Marine Band [Local Name: see VDMB] Clay Cross Soft Coal (Derbyshire) Clay in Upper Lias [Obsolete: use ULC] Clay with flints [Obsolete: use CWF, CHGR] Clay-with-flints Clay-with-flints Formation Clayband Ironstone Formation [Obsolete: use CBIF] Clayband Ironstone Measures [Obsolete: use CBIF] Clayband Ironstone Member Claygate Beds [Obsolete: use CLGB] Claygate Member Claygate Member And London Clay Formation (Undifferentiated) Clayknowes Coal (Lothian) Claymore Sandstone Member Claypole Limestone [Obsolete: use CLPL] Claypole Limestones Bed Clays-of-the-Cornbrash [Obsolete: use CAYC] Clayton Marine Band [Local Name: see SOMB] Claywood Ironstone Cleatham Limestone [Obsolete: use LLL] Cleatham Limestone Member [Obsolete: use CML] Cleaver Bank Formation [Obsolete: use CLBK] Cleaverbank Formation Clee Formation [Obsolete: use CFO] Clee Group [Obsolete: use CFO, WBK] Clee Hill Microgabbro Sill-swarm Clee Sandstone Formation [Obsolete: use SB] Cleeve Cloud Member Cleeve Hill Beds [Obsolete: use ROBA] Cleland Roughband Ironstone Clement Coal (South Wales) Clenchers Mill Member Clennery Scar Vein Clent Breccias [Obsolete: use CLT] Clent Formation Clent Formation And Enville Formation (Undifferentiated) Clent Formation And Haffield Breccia Formation (Undifferentiated) Clent Group [Obsolete: use CLT] Clent Hills Breccia [Obsolete: use CLT] Clerkhill Appinite Suite Cleveland - Armathwaite Dyke. Cleveland Dyke On BGS Published Maps Cleveland Ironstone Formation Cleveland Ironstone Series [Obsolete: use CDI] Cleveland Sand Formation [Obsolete: use STA] Cleveland, Cockfield And Armathwaite Dyke [Obsolete: use CADY] Cleveland-Armathwaite-Barassie-Stevenson-Great Cumbrae-Toward Point Dyke [Obsolete: use CADY] Cleveleys Mudstone Member Clicker Tor Picrite Intrusion Cliff Coal (Milford, South Wales) Cliff End Member Cliff Member Cliff Vein [Obsolete: use CLFC] Cliffe Beds Cliffe Flints Cliffe Hardground Cliffe Marls (One) Cliffe Marls (Two) Clifford's Mesne Sandstone Cliffs End Greensand Bed Clift Hills 'Division' Clift Hills Phyllite [Obsolete: use DBHP] Clift Hills Phyllite Group [Obsolete: use CLHI] Clift Hills Phyllitic 'Group' [Obsolete: use CLHI] Clift Hills Phyllitic Formation Clifton Down Group [Obsolete: use BO, HBO, PEMB] Clifton Down Group And Hotwells Group (Undifferentiated) Clifton Down Limestone Formation Clifton Down Mudstone Formation Clifton Rock Cligga Head Intrusion Climpy Gas Coal (Forth Area) Clinterty Pluton Clintsfield Coal Clintsfield Grit Clippens Peat Formation Clisiophyllum Multiseptatum Band Clitheroe Limestone "Series" [Obsolete: use CLL] Clitheroe Limestone Formation Clitheroe Limestone Formation (Knoll-Reef) Clitheroe Limestone Formation And Hodder Mudstone Formation (Undifferentiated) Clitheroe Limestone Series [Obsolete: use CLL] Cloalcleugh Coal Cloberhill Blackband Ironstone Cloberhill Coal Clochnahill Group [Obsolete] Clock's Cleuch Coal Clod Coal (Coalbrookdale) Clod Coal (Leicestershire, South Derbyshire, Nottingham And Derby) Clod Coal (North Staffordshire) Clogau Formation Clogau Shales [Obsolete: use CLU] Cloghan Green Beds Cloghan Hill Limestone Member Cloghany Limestone Member Cloghastucan Chalk Formation Cloghastucan Chalk Member [Obsolete: use CLC] Clogher Valley Anhydrite [Obsolete] Clogher Valley Formation Clogherny Member Clogherny Member [Duplicate: use CGHY] Cloghfin Sponge Formation Clogwyn Gottal Tuff Clogwyn Volcanic Group Clonelly Sandstone Group [Obsolete: use MMS] Clonmass Formation Close Hill Siltstone Close Hill Siltstone Member [Obsolete: use CLHS] Closeburn Limestone Formation Cloud Hill Dolomite Formation [Obsolete: use HYBH, CLHD] Cloud Hill Dolostone Formation Cloud Wood Member Cloughfin Sponge Bed Member [Obsolete: use CSP] Cloughton Formation Clousden Hill Coal (Northumberland) [Obsolete] Clousta Volcanic Member Clouston Hill Coal [Obsolete: use CNHC] Clovelly Court Shales Clown Coal Clown Marine Band [Obsolete: use CWMB] Clowne Coal (Nottingham, Derby And South Yorkshire) Clowne Marine Band Cluanie Granodiorite Cluanie Suite Clun Forest Formation [Obsolete: use DCS, RG, PAB] Clunch Clay [Obsolete: use OXC] Clunch Clay and Shale [Obsolete: use OXC] Clunch Coal (Coalbrookdale) Clune Fish Bed Clunes Complex Clwyd Group (Knoll Reef) Clwyd Limestone Group Clwyd Valley Formation Clydach Beds [Obsolete: use DDLM, CLD] Clydach Halt Member Clydach Valley Subgroup Clyde Beds [Obsolete: use PRTS, BOCH, LIWD, PAIS, KARN, CLYD] Clyde Catchments Subgroup Clyde Clay Formation Clyde Plateau Lavas [Obsolete: use CPV] Clyde Plateau Subsuite (Midland Valley Early Carboniferous Felsic Sill Suite) Clyde Plateau Subsuite (Southern Scotland Dinantian Plugs And Vents Suite) Clyde Plateau Volcanic Formation Clyde Plateau Volcanic Group [Obsolete: use CPV] Clyde Plateau Volcanic Rocks [Obsolete: use CPV] Clyde Sandstone Formation Clyde Valley Formation Clydebank Clay Formation Clynekirkton Sandstone Formation Clynekirkton Sandstone Member [Obsolete: use ACHSD] Clynelish Quarry Sandstone Member Clypeus Grit [Obsolete: use CG] Clypeus Grit and White Oolite [Obsolete: use CG] Clypeus Grit Member Clyst Sands [Obsolete: use DAS] Clyst St Lawrence Formation Clyth Formation Clyth Subgroup (Helman Head Beds) [Obsolete: use CLYTH] Clyth Subgroup [Obsolete: use CLYTH] Cnoc An Fhithich Banded Semipelite Formation Cnoc An Fhithich Banded Semipelite Formation And Drumchastle Pale Limestone Formation (Undifferentiated) Cnoc Bhrostan Member Cnoc Creagach Member Cnoc Donn Phyllites, Quartzites, Limestone [Obsolete: use DADQ] Cnoc Donn Quartzite Formation Cnoc Donn Slate [Obsolete: use DADQ] Cnoc Fyrish Conglomerate [Obsolete: use CFY] Cnoc Fyrish Conglomerate Formation Cnoc Na Sroine Quartz-Syenite Cnoc Nan Cuilean Intrusion Coa Sandstone Member Coagh Conglomerate Member Coal "Series" [Obsolete] Coal A [Obsolete: use WMC] Coal Group, Upper (Durham) [Obsolete] Coal Marker Member [Obsolete: use STRM] Coal Measures [Obsolete: use COME] Coal Measures Group (Scotland) [Obsolete: use CMSC] Coal Measures Group [N Ireland only] Coal Measures Group And Warwickshire Group (Undifferentiated) Coal Measures Supergroup Coal Measures, Upper (E and W) [Obsolete: use BME] Coal Mining [Obsolete: use DMU] Coal Mosie (Clackmannan) Coal Pit Formation Coal Unit [Obsolete: use STRM] Coalbrookdale Formation Coalburn Dross Coal Coalburn Ell Coal Coalburn Nine Foot Coal Coalburn Six Foot Coal Coalburn Smithy And Dross Coals Coalburn Smithy Coal Coalcleugh Shell Band Coalisland Marine Band [Local Name: see SBMB] Coalpit Bay Mudstone Formation Coalport Formation [Obsolete: use HA] Coalsnaughton Main Coal (Clackmannan) Coaly Unit [Obsolete: use PNTL] Coalypath Coal Coarse gravel and sand [Obsolete: use DRGR] Coastal barrier deposits Coastal deposits and glaciofluvial deposits Coastal deposits of Banffshire [Obsolete: use KBSI] Coastal zone deposits Coastguard Station Vent Coat Walls Mudstone [Obsolete: use KRM] Coat Walls Mudstone Member [Obsolete: use KRM] Coatbridge Balmoral Coal (Central Coalfield) Coatbridge Musselband Coatbridge Musselband Coal (Central Coalfield) Coatbridge Musselband Ironstone Coatyards Coal (Northumberland) Coatyards Limestone Coatyards Limestone [Duplicate: use CYLM] Cobble Coal (Cheadle) Cobden Sandstone Cobham Common, Foxhills and Easthamstead Members [Obsolete: use SUHG] Cobham Lignite Bed Cochno Lava Member Cochno Lavas [Obsolete: use CCLA] Cock Burn Calcareous Schist Formation Cock Cairn Granite (Mount Battock Pluton) Cock Coal (Bristol Area) Cock Rig Formation Cockburn Formation Cockburns Law Intrusion Cocker Combe Tuff Cockerel Gravel Member Cockermouth Breccia-Conglomerate Cockermouth Lavas [Obsolete: use CKML] Cockermouth Lavas Formation [Obsolete: use CKML] Cockermouth Volcanic Formation Cockhill Limestone Cockhill Marine Band [Local Name: see E2A1] Cockington Beds [Obsolete: use CKF, BF] Cockleshell Coal (South Yorkshire and Derbyshire) Cockleshell Limestone Cocklett Scar Flags [Obsolete: use COSS] Cocklett Scar Sandstone Cocklett Scar Sandstone Member [Obsolete: use COSS] Cockley Beck Tuff Member Cockley How Tuff Member Cockley Pike Member [Obsolete: use CPK] Cockley Pike Sandstone Member Cockloft Coal (South Lancashire) Cockshead Coal (North Staffordshire) Codden Hill Beds [Obsolete: use COH] Codden Hill Chert [Obsolete: use COH] Codden Hill Chert Formation Codden Hill Group [Obsolete: use COH] Coddington Till Coddington Till Member Coed Caedyrys Coal (South Wales) Coed Duon Volcanic Formation Coed Ffyddlwn Formation Coed Wenallt Beds Coed-Y-Glyn Sill Coed-yr-allt Formation [Obsolete: use HA] Coedana Complex Coedana Granite Coeden Formation Coetmor Sandstone Member Coilacreich Intrusion Coire An Iubhair Formation Coire Cheap Formation Coire Daingean Semipelite Formation Coire Dubh Breccias Coire Eilde Tuffs Coire Na Circe Formation Coire Na Rainich Hybrid Ring-Dyke Coire Na Rainich Peridotite Raft Coire Nan Easan Tuffs Coire nan Laogh Semipelite Formation Coire Riabhach Phosphatic Formation Coire Uaigneich Granite (Cuillin Centre) Coke Coal (Bristol Area) Cokeyard Coal (Ayrshire) Coking Coal (Bristol Area) Coking Coal (S Yorkshire) Coking Coal (Somerset) Col-Bhein Formation Colchester Formation Cold Ash Gravel Member Coldbeck Limestone Formation Coldingham Beds [Obsolete: use COLB] Coldingham Formation Coldwell Beds [Obsolete: use CDW] Coldwell Beds and Horton Flags [Obsolete: use CDW, HNF] Coldwell Formation Coleby Mudstone Formation [Obsolete: use CHAM, WHM] Coleby Mudstones [Obsolete: use CHAM, WHM] Coleford Formation [Obsolete: use COFD] Coleford High Delf Coal (Forest Of Dean) Coleford Member Colgate Sandstone Colinburn Coal (Central Coalfield) Colinswell Marine Band Coll-Tiree Swarm Colla Firth 'Group' [Obsolete: use COLA] Colla Firth Formation Colla Firth Permeation And Injection Belt Collapsed Building College Farm Clay Member Collering Sandstone Collieston Formation Collin Glen Formation Collingham Head Collinwell Sands Formation Collinwell Sands Member [Obsolete: use CLLW] Colluvium Collyhurst Sandstone Formation Collyweston Slate Colne Valley Deposits Colonsay Group Colpatie Coal Colsay Sandstone Member Colsterdale Limestone Colsterdale Marine Beds Colwall Gelifluctate Member Colwell Bay Member Colwell Limestone Colwick Formation [Obsolete: use CLW] Colwick Member Comb Coal (South Yorkshire and Derby) Combe deposits [Obsolete: use COD] Combe Down Oolite [Obsolete: use CODO] Combe Down Oolite Member Combe Downs Member Combe Formation [Obsolete: use CMMU, CMSH] Combe Martin Beach Limestone Combe Martin Slates Member Combe Mudstone Formation Combe Sand and Gravel Member Combe Shale [Obsolete: use CMMU] Combe Shale Formation [Obsolete: use CMMU] Combe Wood Chert [Obsolete: use COH] Comber Andesite Member Combined Cheltenham and Stanway Hill Formations [Obsolete: use BLPL] Combined Cheltenham Sand and Fan Gravel [Obsolete: use CHSG] Combined Oolite Marl and Upper Freestone [Obsolete: use SQAR] Comin Coch Formation Comley Andesites [Obsolete] Comley Breccia Bed Comley Limestone Formation [Obsolete: use LCML] Comley Rocks (Undifferentiated) [Obsolete: use COMY] Comley Sandstone Group [Obsolete: use LCSS, UCSS] Comley Sandstone Series [Obsolete: use LCSS, CMS] Commodore Formation Common Flat Limestone Compact Limestones Complex landslide deposits Complex Subsided Ground [Obsolete: use DDGR] Compstall Two Feet Comptoni Bed [Obsolete: use ACCO] Comrie Three Foot Coal Comrie Two Foot Coal Con Tom Member Conachair Granite Pluton Conan A Sequence [Obsolete: use CONA] Conan B Sequence [Obsolete: use CONA] Conan Formation Conan Sequence [Obsolete: use CONA] Conan Subsequence [Obsolete: use CONA] Conchar Formation Conchar Subsequence [Obsolete: use CONCH] Concretionary Limestone [Obsolete: use ROD, SEH] Concretionary Limestone Formation [Obsolete: use CNCL] Concretionary Limestone Member Concretionary Sandstone Series [Obsolete: use VTS] Concretionary Sandstones [Obsolete: use VTS] Conduit Conduit Excavation Coney Weston Sand and Gravel Member Coneypark Coxrod Coal Coneypark Lower Drumgray Coal Confinis Flags [Obsolete: use CNF] Confinis Flags Formation [Obsolete: use CNF] Confinis Formation Confusion Member Conglass Conglomerate Formation [Obsolete: use CGLS] Conglass Sandstone Formation Congleton Sand [Obsolete: use CHFDS] Conglomerate "Series" [Obsolete: use SVG] Conglomerate and Grit (Uriconian Group) [Obsolete: use UO] Conglomerate Beds [Obsolete: use CHES] Conglomerate Of Islay-Jura Succession [Obsolete] Conglomerates of Heavitree [Obsolete: use HVBR] Conglomerates of Morven [Obsolete: use LMOCO] Conglomeratic 'Division' of Corsewell Group [Obsolete: use CPC] Congo Coal (Dungannon) Coniacian To Campanian Rocks (Undifferentiated) Conisbrough Group Coniston Grit Formation [Obsolete: use CTG] Coniston Grits [Obsolete: use CTG] Coniston Grits And Studfold Sandstone [Obsolete] Coniston Group Coniston Limestone [Obsolete: use DNT] Coniston Limestone Formation [Obsolete: use DNT] Coniston Limestone Group [Obsolete: use DNT] Coniston Limestone Series [Obsolete: use DNT] Coniston Subgroup Conksbury Bridge Basalt [Obsolete: use CBB] Conksbury Bridge Lava [Obsolete: use CBB] Conksbury Bridge Lava Member Connswater Marl Formation Conrig Formation [Obsolete: use KKF] Constantine Bay Slate Formation [Obsolete: use TVS] Contorta Shales [Obsolete: use WBY] Convoy Group [Obsolete] Conway Rhyolite Formation [Obsolete: use COR] Conwy Castle Grit Member Conwy Mudstones Formation Conwy Rhyolite Formation Conwy Valley Formation Conybeare Group Conybeare Group [Duplicate: use CNYB] Cook Formation Cook Sub-Unit [Obsolete: use COOK] Cookstown Limestone Coolbeg Breccia Formation Coolcran Conglomerate Member Cooldaragh Formation Coombe Coal (Nottingham and Derby) Coombe deposits Cooper Eye Coal (Northumberland) Coplow Knoll Series [Obsolete: use COPL] Coplow Limestone Member Coplow Shales [Obsolete] Copney Pillow-Lava Formation Copper Mine Formation Coppy Hill Limestone Coprolite Bed [Obsolete: use CBG] Copster Green Sandstone Coquet Valley Formation Cora-Bheinn Member Coracle Sandstone Member Coral Bed Coral Knoll (in Kirton Cementstones) [Obsolete: use KCMK] Coral Rag [Obsolete: use CLRG, WYLS] Coral Rag Formation (Southern England) Coral Rag Member (Cleveland Basin) Coralea Phyllite Member Corallian [Obsolete: use AMC, WWB] Corallian Beds (Skye) Corallian Beds [Obsolete: use CR] Corallian Formation (Offshore Areas) Corallian Formation [Obsolete: use CR] Corallian Group Corallian Limestone [Obsolete: use BTF] Corallian Rocks [Obsolete: use CR] Coralliferous Group Coralliferous Series [Obsolete: use CRX] Coralline Crag [Obsolete: use CCG] Coralline Crag Formation Coralline knolls of patch-reef type [Obsolete: use KCMK] Coralline Limestone [Obsolete: use WLF] Coralline Oolite [Obsolete: use COO] Coralline Oolite Formation Corbar Grit Corbie Coal (Lothian) Corbie Craig Coal Corbie Craig Coal (Lothian) Corbie's Tongue Conglomerate Formation Corbiehall Coals Corbridge Limestone Corby Hall Intrusion Corbyn's Head Member Corfe Member Corgarff Limestone Member Corinacy Pelite Member Cork Rock Corkerhill Clayband Ironstone Corkey Rocks Plug Corkhill Sandstone Member Corley Beds [Obsolete: use CRSA] Corley Conglomerate [Obsolete: use CRSA] Corley Sandstone Cormorant Formation Corn Brash [Obsolete: use CB] Cornbrash [Obsolete: use CB] Cornbrash Formation Cornbrash Formation and Cayton Clay Formation (Undifferentiated) Cornbrash Formation And Cayton Shale Formation [Undifferentiated] Cornbrash Limestone Member [Obsolete: use CB] Cornbrook Sandstone [Obsolete: use COS] Cornbrook Sandstone Formation Corncockle Sandstone Formation Cornelly Oolite Formation Cornet Limestone Cornstone Beds (of Inverness, Nairn, Banff) [Obsolete: use ELCA] Cornstone Beds (of Stirling Area) [Obsolete: use KNW] Cornstone Beds [Duplicate: use CRNS] Cornstone Formation [Obsolete: use KNW] Cornstone-bearing Beds [Obsolete: use LSBU] Cornubian Catchments Subgroup Corodale Gneiss Coronation Coal (Fife) Coronea Formation Corral Coal (Dailly) Corrennie Intrusion Corrie Burn Horneblende Schist Corrie Lava Member Corrie Lavas [Obsolete: use CRRL] Corrie Limestone Corrie Sandstone Corrie Sandstone And Brodick And Lamlash Beds (Undifferentiated) Corrieyairack Granitic Complex [Obsolete: use CYACK] Corrieyairack Pluton Corrieyairack Subgroup Corrieyairack Subgroup And Glen Banchor Succession (Undifferentiated) Corrour Granulite Corry Member Corrycroar Beds Corrydon Psammite Member Corryhabbie Quartzite Formation Corsankell Limestone Corse Diamicton Formation [Obsolete: use CORSE] Corse Diamicton Member Corse Member [Obsolete: use CHLGE] Corse Of Balloch Member Corseclays Sandstone Formation Corsend Gelifluctate Bed Corsend Member, Kirkhill Formation [Obsolete: use CSEND] Corsewall (Point) Conglomerate [Obsolete: use CPC] Corsewall Formation Corsewall Group [Obsolete: use CLG] Corsewall Point Conglomerate Member Corsham Coral Bed Corsham Limestone Formation Corsham Member [Obsolete: use CSHF] Corston Coal (Bristol Area) Corstorphine Sill Corton Beds [Obsolete: use CORS] Corton Formation [Duplicate: use CORF] Corton Formation [Obsolete: use HPGL] Corton Formation and Lowestoft Formation (Undifferentiated) [Obsolete: use HPLO] Corton Sand Member Corton Sands [Obsolete: use CORS] Corton Till [Obsolete: use CATI] Corton Till Member Corton Woods Sand and Gravel Member Corton Woods Sands and Gravels [Obsolete: use CWSG] Corvanaghan Formation Corvanaghan Formation [Duplicate: use CORV] Corvie Group Corwen Grit [Obsolete: use CWG] Corwen Grit Member Coryton Breccias [Obsolete: use HVBR] Cosham Flint Cosheston Beds [Obsolete: use COB] Cosheston Subgroup Cot Castle Blackband Ironstone Cot Castle Clayband Cot Castle Shell Bed Cotehele Formation [Obsolete: use SME] Cotehele Sandstone Formation [Obsolete: use SME] Cotes Bottom Flint Cotgrave Place Skerry [Obsolete: use COT] Cotgrave Sandstone Member Cotgrave Skerry (Member) [Obsolete: use COT] Cotgrave Skerry [Obsolete: use COT] Cotgrave Skerry Member [Obsolete: use COT] Cothall Limestone Member Cotham Beds [Obsolete: use CTM] Cotham Member Cotham Member and Westbury Formation (Undifferentiated) [Duplicate: use WBCT] Cotswold Sands [Obsolete] Cotswold Slates [Obsolete: use EYF] Cotteswold Sands [Obsolete: use BDS] Cottonshope Basalts [Obsolete: use COVO] Cottonshope Lavas [Obsolete: use COVO] Cottonshope Volcanic Formation Coulins Burn Striped Member Coull Grit Formation Counter Head Formation [Obsolete: use CHST] Counter Head Siltstone Formation Coupland Sike Limestone Member Cove Harbour Sandstone Cove Limestone Member Cove Lower Limestone Cove Lower Marine Band Cove Oil Shale Bed Cove Upper Limestone Cove Upper Marine Band Cove Vein Covehithe Clay Member Coventry Sandstone (middle part) [Obsolete: use KRS] Coventry Sandstone [Obsolete: use CYS, ASY] Coventry Sandstone Formation [Obsolete: use ALY, ASY, MRD] Covered Structure Coversands Cow Rock Conglomerate Member Cowdenbeath Ell Coal Cowdenbeath Five Foot Coal Cowdenbeath Jewel Coal Cowdenbeath Seven Foot Coal Cowdenbeath Two Foot Coal Cowdenbeath Wee Coal Cowglen Limestone [Obsolete: use ILS] Cowglen Rough Coal (Glasgow) Cowglen Sclutty Coal (Glasgow) Cowglen Smithy Coal (Glasgow) Cowglen Stinking Coal (Glasgow) Cowhythe Gneiss [Obsolete: use CWPS] Cowhythe Psammite Formation Cowie Formation [Obsolete: use CWE] Cowie Harbour Conglomerate Member Cowie Harbour Fish-Bed [Obsolete: use CHSI] Cowie Harbour Siltstone Member Cowie Rock Cowie Sandstone Formation Cowlairs Sandstone Cowleaze Chine Member Cowleigh Park Beds [Obsolete: use CPA] Cowleigh Park Formation Cowleigh Park Formation [Duplicate: use CPA] Cowpits Five Foot Coal (Lothian) Coyles Of Muick Intrusion Coylumbridge Formation Crabtree Coal (North Staffordshire And Cheadle) Crackers Coal (Lancashire) Crackers Group [Obsolete: use ULOB, TCRS] Crackers Mine [Obsolete: use CRCK] Crackington Formation Crackington Formation (pars) [Obsolete: use DHLS, LAQU] Crackington Formation And Bude Formation (Undifferentiated) Crackington Measures [Obsolete: use CKF] Cracoe Limestone Formation Cradley Silts Bed Cradley Valley Formation Crafnant Volcanic Group [Obsolete: use SV] Crag [Obsolete: use SZWL] Crag Group Crag Group And Bytham Sand And Gravel Formation (Undifferentiated) Crag Hill Beds [Obsolete: use CRHL] Crag Hill Limestone [Obsolete: use CRHL] Crag Hill Limestone Member Crag Limestone Craghouse Tuff Member Craghouse Tuffs Member [Obsolete: use CHT] Crags Vent Craid A'Bhlair Formation Craig An Daimh Gravel Formation Craig An Daimh Member Craig Cau Formation Craig Coals Craig Hen-Gae Member Craig Hill Breccia Formation Craig of Monievreckie Conglomerate Formation Craig Rofft Sandstone Member Craig y Ffynnon Formation Craig Y Lam Formation [Obsolete: use CGU] Craig Y Lam Group [Obsolete: use CGU] Craig Y Llam Formation Craig Y Llam Group [Obsolete: use CYLF] Craig Yr Odyn Mudstone Member Craig-y-cwm Formation Craig-y-Gaer Coral Bed Craig-Y-Glyn Formation Craig-Y-Glyn Group [Obsolete: use CGYG] Craig-y-Llam Group [Obsolete: use CYLF, UAV] Craiganee Formation Craigavad Sandstone Formation Craigballyharkey Tonalite Craigbardahessiagh Granodiorite Craigbreck Conglomerate Bed Craigburn Limestone [Obsolete: use HHLS] Craigburn Shell Bed Craigcluggan Plug Craigdouffie Lava Member Craigdouffie Lavas [Obsolete: use CDLA] Craigenbush Limestone [Obsolete: use CAS] Craigenglen Beds Craigenhill Limestone Craigentimpin Lava Member Craigentimpin Lavas [Obsolete: use CTLA] Craighall Conglomerate Formation Craighead Limestone [Obsolete: use CRDL] Craighead Limestone Formation Craighead Volcanic Formation Craighill Sandstone Group [Obsolete: use FELL] Craigie Coal (Dailly) Craigies Lava Member Craigievar Formation Craigleith Sandstone Craigleith Sill Craigmaddie Muir Sandstone Member Craigmaddie Muir Sandstones [Obsolete: use CRMS] Craigmaddie Sandstone Formation [Obsolete: use CRMS] Craigmaddie Sandstones [Obsolete: use CRMS] Craigmalloch Formation Craigmark Blackband Ironstone Craigmuschat Sill Craignish Phyllite [Obsolete: use DBCP] Craignish Phyllite Formation Craignook Coals (Midgeholm) Craignook Sandstone Craigrory Sandstone Bed Craigs Breccia [Obsolete: use DBR] Craigs Breccias Craigskelly Conglomerate Craithie Point Group Crammel Linn Sandstone Cramond Island Sill Crane Dyke Member Crane Formation Cranford Limestone Crank Coal (North Wales) Cranmore Member Crapwell Coppice Limestone Crathes Pluton Crathie Point Calc-Silicate Member Crathie Point Calcareous Flag Member [Obsolete: use CRPT] Crathie Schist And Limestone Formation Crathie Sheets Craven Grit Craven Group Cravenoceras brandoni Marine Band Cravenoceras brandoni Marine Band [Duplicate: use E1B1] Cravenoceras cowlingense Marine Band Cravenoceras cowlingense Marine Band [Duplicate: use E2A1] Cravenoceras gressinghamense Marine Band Cravenoceras gressinghamense Marine Band [Duplicate: use E2A2A] Cravenoceras leion Marine Band Cravenoceras leion Marine Band [Duplicate: use E1A1] Cravenoceras malhamense Marine Band Cravenoceras malhamense Marine Band [Duplicate: use E1C1] Cravenoceratoides edalensis Marine Band Cravenoceratoides edalensis Marine Band [Duplicate: use E2B1] Cravenoceratoides nitidus Marine Band Cravenoceratoides nitidus Marine Band [Duplicate: use E2B2] Cravenoceratoides nititoides Marine Band Cravenoceratoides nititoides Marine Band [Duplicate: use E2B3] Crawford Group Crawford Group And Moffat Shale Group (Undifferentiated) Crawfordjohn Dyke Crawfordjohn Essexite [Obsolete: use CRFJ] Crawfordston Coal (Ayrshire) Crawley Formation [Obsolete: use CRW] Crawley Member Crawshaw Sandstone Crawstone Coal (Coalbrookdale) [Obsolete] Crawton Group [Obsolete: use DRCR] Crawton Volcanic Formation Crayford Brickearth [Obsolete: use CFSI] Crayford Brickearth Formation [Obsolete: use CFSI] Crayford Silt Formation [Obsolete: use CFSI] Crayford Silt Member Creag An Loin Psammite Formation Creag Buidhe Semipelite Formation Creag Dhubh Psammite Formation Creag Innich Sandstone Formation Creag Leacach Quartzite [Obsolete: use CLQU] Creag Leacach Quartzite Formation Creag Liath Pelite Member Creag Liath Psammite Formation Creag Meagaidh Psammite Formation Creag Mhor Conglomerate Member Creag Mhor Conglomerates [Obsolete: use CMC] Creag Mhor Limestone Member Creag Na Sanais Semipelite Formation Creag Nam Ban Psammite Formation Creag Nan Gall Granodiorite Creag Strollamus Granite (Skye Eastern Red Hills Centre: Phase 4) Creagan Formation Creagan Group [Obsolete: use DBCG] Creagan Loisgte Member Crease Limestone [Obsolete: use GUO] Crease Limestone And Whitehead Limestone (Undifferentiated) Crease Limestone Formation [Obsolete: use GUO] Crediton Beds [Obsolete: use CRBR] Crediton Breccia Formation Crediton Breccias [Obsolete: use CRBR] Crediton Conglomerates [Obsolete: use CRBR] Creech Barrow Limestone Member Creech Brick Clay Member Creedy Park Sandstone Formation Creekmoor Clay Member Creekmoor Sand Member Creepie Coal (Sanquhar) Creeslough Formation Creeslough Formation And Ards Black Schist (Undifferentiated) Creeting Sand Member Creetown Granite Creg Agneash Sandstone Formation Cregennen Formation Creggan Chalk Formation Creggan Chalk Member [Obsolete: use CGCK] Creggan Moar Mudstone Formation Creigiau Brithion Formation [Obsolete: use BRT] Crendon Sand Creran Bridge Quartzite Formation Creran Flags Formation Cressbrook Dale Lava [Obsolete: use CBDL] Cressbrook Dale Lava Member Cretaceous Rocks (Undifferentiated) Cretaceous rocks [Obsolete: use IHEB] Crewi Formation Crewyn Formation [Obsolete: use LLBG] Cribarth Formation Cribbwr Fach Coal (South Wales) Cribbwr Fawr Coal (South Wales) Cribyn Ddu Member Crichope Sandstone Member [Obsolete: use TWN] Crickley Limestone and Crickley Oncolite [Obsolete: use CRKY] Crickley Member Crickmail Limestone [Obsolete: use OHL] Crieve Hill Oolite [Obsolete] Criffel Granite, Criffel and Dalbeattie (Granite) Mass [Obsolete: use CDPL] Criffel-Dalbeattie Granodiorite Complex Criffel-Dalbeattie Pluton Crigglestone Rock Crinan Grit Formation Crinan Grits [Obsolete: use DBCR] Crinan Subgroup Crinan Subgroup And Tayvallich Subgroup (Undifferentiated) Crinan Subgroup Caenlochan Schist [Obsolete: use TUSC] Cringate Interbasaltic Beds [Obsolete: use CRNV] Cringate Volcaniclastic Member Criniod Grit [Obsolete: use CRG] Crinkle Member [Obsolete: use CRK] Crinkle Tuff Member Crinkle Tuffs [Obsolete: use CRK] Crinoid Bed Crinoid Grit Member Croaghgarrow Formation Croaghubrid Dark Schists [Obsolete: use DBCS] Croaghubrid Pelite Formation Crocadon Formation [Obsolete: use SME] Crockanaver Limestone Member Crockey Hill Esker Member Crocknagargan Beds [Obsolete] Croft Member Crofthead Coal Crofthead Slatyband Ironstone Crofts End Marine Band [Local Name: see AGMB] Crogenen Slates [Obsolete: use CREN] Croisaphuill Formation Croisaphuill Group [Obsolete: use CAP] Crom Psammite Formation Cromar Pluton Cromarty Fish Bed Cromarty Sand Member [Obsolete: use BNSA] Cromarty Sandstone Member Cromdale Hills Quartzite Member Cromer Diamicton [Obsolete: use BGTI] Cromer Forest Bed Series [Obsolete: use WRCG] Cromer Forest-bed Formation Cromer Knoll Group Cromer Member [Obsolete: use BGTI] Cromer Till (Lowest Member) [Obsolete: use HPTI] Cromer Till (Sand Member) [Obsolete] Cromer Till (Upper Member) [Obsolete: use WATI] Cromer Till [Obsolete: use BRLA, HPGL, LOFT, SMCL] Cromerian Complex Interglacial 2 To Elsterian Deposits, Undifferentiated (Offshore) Cromerian Complex Interglacial 2 to Elsterian mud and sand, interbedded (offshore) Cromerian Complex Interglacial 2 to Elsterian sand (offshore) Cromerian Complex Interglacial 2 To Saalian Channel Fill Deposits, Undifferentiated (Offshore) Cromerian Complex Interglacial 2 To Saalian Diamicton, Firm To Hard (Offshore) Cromerian Complex Interglacial 2 to Saalian mud and sand, interbedded (offshore) Cromhall Coal (Bristol Area) Cromhall Sandstone Formation Cromlix Formation [Obsolete: use CXF] Cromlix Mudstone Formation Cronk Sumark Slate Cropper Gate Rock [Obsolete: use BRSR] Cropthorne Member [Obsolete: use CRTD] Cropthorne Sand and Gravel Member Cropthorne Terrace Deposits [Obsolete: use CRTD] Cropwell Bishop Formation [Obsolete: use BCMU] Crosby Thwaite Formation [Obsolete: use WNY] Cross Hands Rock [Obsolete: use DASHR] Cross Hill Andesite Cross Lane Limestone [Obsolete: use CSLL] Cross Lane Limestones Bed Cross Slieve Group Cross-Bedded Quartzite [Obsolete: use BAQ] Cross-Bedded Series [Obsolete: use MRG] Crossbasket Ironstones Crossbrae Farm Peat Bed Crossbrae Gelifluctate [Obsolete: use CBGEL] Crossbrae Gelifluctate Bed Crossbrae Head [Obsolete: use CBGEL] Crossbrae Member [Obsolete: use CBFMP] Crossbrae Peat [Obsolete: use CBFMP] Crossbrae Till Formation Crossdale Grit Crossdale Mudstone Crossdale Mudstone Formation [Obsolete: use SILS, CROM] Crossdale Shales [Obsolete: use CROM] Crossgates Sandstone Crosshouse Sill Crossi Bed [Obsolete] Crosskirk Bay Formation Crosskirk Flagstone Formation [Obsolete: use CKBA] Crossopodia Shales Crosspodia Shales and Penkill Flags [Obsolete: use PKF] Crossridge Formation [Obsolete: use CMBN] Crosswood Ash Croughton Member [Obsolete: use SHIP] Crousa Down Gravel Beds [Obsolete: use COGR] Crousa Gravels Crovie Conglomerate [Obsolete: use DCST] Crovie Group [Obsolete: use CRO] Crovie Sandstone [Obsolete: use DCST] Crovie Sandstone Group Crovie Till Member Crow Cherts Crow Coal (A) [Obsolete: use CRWC] Crow Coal (B) [Obsolete: use CROC] Crow Coal (Cumbria) Crow Coal (Dungannon: Duckmantian) Crow Coal (Dungannon: Pendleian) Crow Coal (Durham) Crow Coal (Ingleton) Crow Coal (West Yorkshire) Crow Delf Coal (Forest Of Dean) Crow Hill Conglomerate And Sandstone Member Crow Limestone Crow Sandstone Crowberry Ridge Tuff Crowland Bed Crown Coal (North Wales) Crows-Foot Coal (South Wales) Croxton Sand And Gravel Member Cruachan Formation Cruachan Intrusion Cruachan Phase, Starav Granite [Obsolete: use CRUA] Crug Limestone Crugan Mudstone Formation Crugan Mudstones [Obsolete: use CRMU] Cruiser Formation Crumbouke Coal (South Lancashire) Crumbouke Mine Coal [Obsolete: use CRUM] Crummack Formation [Obsolete: use STK] Crummock Water Intrusion Crumpy Coal Crutchman Sandstone [Obsolete: use MLRS] Crutherland Coals Crutherland Coals And House Coal Crychan Formation Crying Crag Sandstone Cryne Coal (Lothian) Cuckfield Stone [Obsolete: use CKST] Cuckfield Stone Bed Cuckfield Stone Member [Obsolete: use CKST] Cucklington Oolite [Obsolete: use CLR] Cucklington Oolite Member Cuckmere Beds Cuckmere Flint Cuckmere Valley Formation Cuckoo Coal (Bristol Area) Cudworth Coal (Yorkshire) Cuil Bay Slate Formation Cuil Bay Slates [Obsolete: use DACB] Cuilfail Zoophycus Flint Cuillin Centre (Skye Central Complex) Cul Nan Gad Pluton Culbokie Silt Formation Culchavie Striped Formation Culdaff Limestone Culdoich Till Member Culfargie Beds [Obsolete: use CUSA] Culfargie Sand Member Culham Sands with Cherts Member Cullaidh Shale Formation Cullardoch Diorite Cullen Quartzite [Obsolete: use CUQU] Cullen Quartzite Formation Cullivait Silts Formation Cullivoe Lens Member Culm [Obsolete: use CHUD, CU] Culm Group [Obsolete: use CU] Culm Measures [Obsolete: use CU, SME] Culm Measures and Upper Devonian Slates [Obsolete: use BREN] Culm Supergroup Culnagrew Sandstone Formation Culvennan Intrusion Culver Chalk Formation Culver Chalk Formation And Norfolk Chalk Formation (Undifferentiated) Culver Chalk Formation And Portsdown Chalk Formation (Undifferentiated) Culver Chalk Member [Obsolete: use CUCK] Cumberworth Thin Coal (South Yorkshire) Cumbrae-Stevenston Dyke Cumbria-Lancashire Catchments Subgroup Cumbrian Coast Group Cumbrian Esk Alluvium Member Cumbrian Esk Valley Formation Cumbriense Marine Band [Obsolete: use G1B1] Cumcrook Limestone Cumnock Claud Coal (South Ayrshire) Cumnock Ell Coal (South Ayrshire) Cumnock Fifty Fathom Coal (South Ayrshire) Cumnock Forty Fathom Coal (South Ayrshire) Cumnock Low Ell Coal Cumnock Major Coal (South Ayrshire) Cumnock Musselband Coal (South Ayrshire) Cumnock Thirty Inch Coal (South Ayrshire) Cumnock Three Dirt Coal (South Ayrshire) Cumnock Twenty Three Fathom Coal (South Ayrshire) Cumnor Formation [Obsolete: use KTON, STFD] Cuniger Rock Marine Band Curdly Ironstone Curly Coal (South Wales) Curragh Formation Curran Point Halite Member Currarie Formation Curving Coal (South Wales) Cushat Limestone Cushendall Formation Cushendall Porphyry Cushendun Conglomerate [Obsolete: use CCC] Cushendun Formation Cushendun Granodiorite Cushnie Pluton Cut Away Landscape Cutcombe Slates Member Cuthill Limestone Member Cutties Hillock Sandstone Cwar Glas Member Cwm Barn Formation Cwm Berem Marine Band [Local Name: see LGMB] Cwm Clwyd Ash [Obsolete: use CCT] Cwm Clwyd Tuff [Obsolete: use CCT] Cwm Clwyd Tuff Formation [Obsolete: use CGTU] Cwm Clyd Sandstone Cwm Crychan Formation [Obsolete: use TRE, BRNY, CRYH] Cwm Degwel Mudstone Member Cwm Eigiau Formation Cwm Eigiau Formation And Lower, Middle And Upper Crafnant Formations (Undifferentiated) Cwm Eigiau Formation And Pen-Ychain Rhyolitic Complex (Undifferentiated) Cwm Graig Ddu Formation Cwm Gwaun Formation Cwm Hesgen Formation [Obsolete: use DYN] Cwm Mawr Coal (South Wales) Cwm Yr Aethnen Mudstones [Obsolete: use CYA] Cwm Yr Aethnen Mudstones Formation Cwm Yr Aethnen Shales [Obsolete: use CYA] Cwm-Amliw Group [Obsolete: use CMA] Cwm-Amliw Series [Obsolete: use CMA] Cwm-Amliw Tuff Formation [Obsolete] Cwm-Yr-Eglwys Formation Cwm-Yr-Hob Member Cwmbarn Member [Obsolete: use CWN] Cwmbyr Coal (South Wales) Cwmcringlyn Formation Cwmere Formation Cwmffrwd Formation Cwmhesgen Formation [Obsolete: use DLU, DYN] Cwmmawr Coal (South Wales) Cwmorthin Formation [Obsolete: use ALL] Cwms Rhyolites [Obsolete] Cwmsymlog Formation [Obsolete: use RHS] Cwmyniscoy Mudstone Formation Cwmystwyth Grits Group Cwrt-yr-ala Formation Cymerig Limestone [Obsolete: use CY] Cymerig Limestone Member Cyrena Limestones [Obsolete: use VTS] Cyrtograptus Grayi Mudstones [Obsolete: use LAU] Cystoid Limestone [Obsolete: use CYO] Cystoid Limestone Member D-Bed Evaporite D2 Limestones [Obsolete: use CFML] Dab Limestone Unit Dabchick Coal (Somerset) Dacite Group [Obsolete: use STAD] Daddyhole Limestone [Obsolete: use DHL] Daddyhole Member Dailly Ell Coal Dailly Ground Coal Dailly Group [Obsolete: use DAI, STNG] Dailly Main Coal Dailly Parrot Coal Dailly Series [Obsolete: use DLY, PNO, DAI] Dailly Subgroup Dailly Wee Coal Dalby Group Dalcharn Biogenic Formation [Obsolete: use DNPS] Dalcharn Biogenic Member [Obsolete: use DMBG] Dalcharn Cryoturbate Member [Obsolete: use RECR] Dalcharn Gravel Formation [Obsolete: use CDGR] Dalcharn Lower Till Formation [Obsolete: use ATTI] Dalcharn Palaeosol Formation Dalcharn Upper Till Formation [Obsolete: use CYTI] Dale Head Breccia Member Dale Head Member [Obsolete: use DHD] Dales Voe Grit [Obsolete: use DAVO] Dales Voe Grit Formation [Obsolete: use DAVO] Dales Voe Grit Member Dalharco Limestone Dalkeith Under Coal (Lothian) Dalkeith Upper Coal (Lothian) Dalla Bank Limestone Dallabank Limestone Dallas Psammite Formation Dalmahoy Oil-Shale Dalmahoy Shale Dalmahoy Sill Dalmanella Lunata Beds [Obsolete: use CEF] Dalmary Sandstone Member Dalmellington Blackband Ironstone Dalmellington Diamond Coal Dalmellington Ell Coal Dalmellington Extra Coal Dalmellington Lower Diamond Coal Dalmellington Major Coal Dalmellington Two Foot Coal Dalmellington Upper Diamond Coal Dalmellington Upper Ell Coal (South Ayrshire) Dalness Breccias Dalness Ignimbrite Member Dalradian Rocks (Undifferentiated) [Obsolete: use DALN] Dalradian Supergroup Dalradian Supergroup And Moine Supergroup (Undifferentiated) Dalreoch Division [Obsolete: use DLR] Dalreoch Formation Dalroy Sand Member Dalry Blackband Ironstone Dalry Clayband Ironstone Dalry Sandstone Formation [Obsolete: use LSC] Dalry Sandstone Member Dalserf Mussel Band (Central Coalfield) Dalswinton Moraine Formation Dalton Beds [Obsolete: use DLB] Dalton Formation Dalton Limestone (Northumberland) Dalton Rock Daltulich Psammite Formation Daltulich Semipelite Formation [Obsolete: use DALT] Dalvrecht Slate Formation Dalzell Works Lingula Band Dam House Bridge Tuff Member Dam or Barrage Damery Beds Dandy Coal (Lancashire) Dandy Mine Coal [Obsolete: use DYCO] Dandy Rock Dane Hills Sandstone Group [Obsolete: use AS] Dane Hills Sandstone Member [Obsolete: use AS] Danian Rocks (Undifferentiated) Danian To Ypresian Rocks (Undifferentiated) Danny Bridge Limestone Formation Daren Rhestyn Coal (South Wales) Daren-Ddu Coal (South Wales) Daren-Ddu Rider Coal (South Wales) Dargan Limestone Formation Dark Grey Mudstone [Obsolete: use DMM] Dark Grey Mudstone Member [Obsolete: use MSW] Dark Group Dark Group of Blair Atholl Series [Obsolete: use DLDS] Dark Limestone Dark Limestone and Dark Schist within Blair Atholl Subgroup [Obsolete: use DLDS] Dark Schists Dark Slade Member Darlington Clay Formation Darnford Conglomerate Member Darnley Coal Darnley Fireclay Darren Ddu Limestone Member Darroch Coal (North Ayrshire) Dart Formation Dart Formation [Duplicate 1: use DART] Dart Formation [Duplicate 2: use DART] Dart Schists [Obsolete: use DART] Dartford Silt [Obsolete: use DASI] Dartford Silt Member Dartington Limestone Member Dartmoor Granite [Obsolete: use DMR] Dartmoor Intrusion Dartmouth Beds [Obsolete: use DRTM] Dartmouth Group Dartmouth Group [Obsolete: use DRTM] Dartmouth Slates [Obsolete: use BIN, DRTM, WTD] Dartry Limestone Formation Darvel Lava Member Darvel Lavas [Obsolete: use DLLA] Darwen Flags Darwin Formation Dash Picrite [Obsolete] Dasses Sill Daugh Coal (Sanquhar) Daugleddau Group Dava Subgroup Dava Succession [Obsolete: use DAVA] David's Hole Beds [Obsolete: use KSL] David's Stone Limestone Daviot Conglomerate Formation Davy Coal Dawlish Sands [Obsolete: use DAS] Dawlish Sandstone [Obsolete: use DAS] Dawlish Sandstone Formation Dawlish Sandstones [Obsolete: use DAS] Dawlish sandstones and breccias [Obsolete: use DAS] Dayia Beds Daylesford Sand and Gravel Member Ddolhir Beds [Originally Dolhir] Ddugaled Coal (South Wales) Ddwyryd Shales [Obsolete: use NOG] Dean Coal (Durham) Deanshillock Gravel Formation Dearcaige Quartzite Member Dearg Member Dearg Till Formation [Obsolete: use SUTI] Debris cone [Obsolete: use TCON] Debris flow deposits Deception Coal (Lothian) Deckanhydrit [Obsolete: use ZECH2] Dee Bridge Sandstone Dee Valley Formation Deep Coal (Coalbrookdale) Deep Coal (South Staffordshire) Deep Conglomerate Formation Deep Hard Coal (South Yorkshire, Nottingham And Derby) Deep Hard Rock Deep Main Coal (Vale Of Belvoir) Deep Rider Coal Deep Rider Coal (Warwickshire) Deep Soft Coal (Nottingham And Derby) Deep Soft Rock Deep Yard Coal (South Lancashire) Deepdale Flint Deepdale Formation [Obsolete: use DPD] Deepdale Lower Marl Deepdale Sandstone Formation Deepdale Upper Marl Deepmine Coal Deer Park Andesite Deer Park Shales Deerhope Burn Flagstones [Obsolete: use DHP] Deerhope Formation Deerhope Siltstones [Obsolete: use DHP] Deerness Volcanic Member Deeside Limestone [Obsolete: use DLI] Deeside Limestone Formation Deeside Subsuite Defence Establishment Deformation till Deganwy Mudstone [Obsolete: use COMU] Degnish Limestone [Obsolete: use DBDL] Degnish Limestone Formation Delabole Member Delabole Slates [Obsolete: use UDSL, TVY, DLBS, TSL] Delamere Sandstone Member Delnabo Conglomerate Formation Delnadamph Volcanic Member Delta Bench Coal (North Wales) Delta Coal (North Wales) Demesne Limestones Demetae Group Den Coal (Fife) Den Siltstone Formation [Obsolete: use BRMU, DSF] Den Siltstone Member Denbigh Grits [Obsolete: use DFG] Denbigh Grits Formation Denbigh Grits Group [Obsolete: use DG] Denbighshire Grits and Shales [Obsolete: use PEG] Denbury Crinoidal Limestone [Obsolete: use DCL] Denbury Crinoidal Limestone Formation Denend Gravel Formation [Obsolete: use LEY] Denend Member [Obsolete: use DNDGR] Denham Valley Terrace Deposits Denny Lower Blackband Ironstone Denny Muir Lava Member Denny Muir Lavas [Obsolete: use DMLA] Denny Upper Blackband Ironstone Dennyloanhead Ball Coal Denstone Formation [Obsolete: use TPSF] Dent Group Denton Mill Limestone Derbyhaven Beds [Obsolete: use DBH] Derbyhaven Formation Derenenach Mudstone Formation Derfel Limestone Member Dergvone Shale Formation Deri Beds [Obsolete: use DER] Deri Formation Derlwyn Formation Derreens Limestone Member Derry Coal (Dungannon) Derrycreevy Sandstone Formation Derrygonnelly Sandstone Formation [Obsolete] Derryhill Lava Member Derryloran Formation Derryloran Grit Formation [Obsolete: use DLN] Derryloran Grit Member [Obsolete: use DLN] Derryloran Grits [Obsolete: use DLN] Derryvale Sandstone [Obsolete] Derryvree Till [Obsolete] Dersingham Beds [Obsolete: use DEB] Dersingham Beds/Snettisham Clay [Obsolete: use DEB, SNC] Dersingham Formation Derwenlas Formation Derwyddon Sandstone Formation Desertcreat Group Desertmartin Limestone Formation Desoglin Limestone Developed Farmland Developed Habitat Developed Parkland Devil's Bridge Formation Devil's Chimney Oolite [Obsolete: use CLCL] Devil's Chimney Oolite and Cleeve Hill Oolite [Obsolete: use CLCL] Devil's Chimney Oolite and Fiddler's Elbow Limestone [Obsolete: use CLCL] Devil's Hole Sandstone Member Devoke Water Greisen Devoke Water Member [Obsolete: use DKT] Devoke Water Tuff Member Devon Red Sandstone Devonian And Carboniferous Rocks (Undifferentiated) Devonian Fintona Group [Obsolete: use SLI] Devonian Rocks (Undifferentiated) Dhoon Pluton Diabaig Formation Diamicton Diamond Coal Diamond Coal (North Staffordshire) Diamond Coal (Northumberland) Diamond Coal (Patna) Diamonds Ironstone (South Staffordshire) Diamonds Ironstone And Silver Threads Ironstone (Undifferentiated) (South Staffordshire) Diatomite Dibhole Coal (West Yorkshire) Dibidil Grit Member Dicky Gobbler Coal (South Derbyshire) Dicky Hare Cove Flags [Obsolete: use DICH] Dicky Hare Member [Obsolete: use DICH] Dicky Hare Semipelite Member Dicranograptus Shales [Obsolete] Dictyocaris Member [Obsolete: use CHSI] Diddup Limestone Didymograptus Bifidus Beds [Obsolete: use ABGW] Didymograptus Bifidus Beds And Didymograptus Murchisoni Beds (Undifferentiated) Didymograptus Shales [Obsolete: use SMU] Didymograptus Superstes Mudstones [Obsolete: use SMU] Diebidale Pelite Formation Digg Siltstone Member Dilhorne Coal (Cheadle) Dilhorne Coal (Derbyshire) Dimlington Bed (Dimlington Silts) Dinantian Dykes (Within MCPAD) Dinantian Intrusion (Within MCPAI) Dinantian Rocks (Undifferentiated) Dinantian To Westphalian Sills Of Lothians And Fife Dinantian Volcanic Rocks (Undifferentiated) Dinas Bran Beds [Obsolete: use DBG] Dinas Bran Formation Dinas Bran Group [Obsolete: use DBG] Dinas Dolerite Dinas Island Formation Dingle Beds (Lower Old Red Sandstone) [Obsolete: use KILS] Dingle Beds [Obsolete: use FIN, TPMS, BRC, BLM] Dingle Conglomerate Member Dingle Mudstone Member Dinorwic Formation [Obsolete: use REL] Dinwoodie Beds Dionide Beds Diplograptus Modestus Shales [Obsolete: use GLSH] Dippal Burn Formation Dippin Sill (South Arran) Dipple Fish Bed Dipton Burn Marine Beds Dipton Foot Shell Bed Dirk Sandstone Member Dirleton Plugs Dirrington Great Law Sill Dirt Coal Dirt Pot Grit Dirty Coal (South Wales) Dirty Rider Coal (South Wales) Discovery Coal (Lancashire) Diseworth Member [Obsolete: use DIS] Diseworth Sandstone Dissolution Mining Distinkhorn Dyke Swarm Distinkhorn Pluton Disturbed Blackheath Beds Disturbed Ground Ditcheat Clay Member Dittisham Member Ditton Group [Obsolete: use DTG] Ditton Marine Band [Local Name: see BJMB] Ditton Subgroup [Obsolete: use FWW] Diver Coal Division 3 (sandy clays) [Obsolete: use BKGS] Division 4 (sands with chert and ironstone) [Obsolete: use FHMS] Division A3 of King (1981) [Obsolete: use OCKD] Division B and the lower part of Division C of King, 1981 [Obsolete: use AVLY] Division D [Obsolete: use MFLD] Division D of the Bristol Area [Obsolete] Dixon Ground Member Doagh Limestone Member Dobb's Plantation Member Dobbie's Vein Dobbin Sandstone Formation Dock Dockra Limestone [Obsolete: use BLLS] Doctors Coal Doctors Mine Marine Band [Local Name: see HTMB] Doddiscombe Beds [Obsolete: use DDC] Doddiscombe Formation Doddiscombe Formation And Codden Hill Chert Formation (Undifferentiated) Dodington Ash Rock Member Dodman Formation Dodman Phyllites [Obsolete: use DMN] Dodman Series [Obsolete: use DMN] Dodman Series/Dodman Phyllites [Obsolete: use DMN] Doe Coal (South Lancashire) Doe Mine Coal [Obsolete: use DOEM] Doethie Formation Dog Crag Tuff Member Dog Falls Psammite Formation Dogger [Obsolete: use NS, DGR] Dogger Bank Formation Dogger Formation Dogger Formation and Saltwick Formation (Undifferentiated) Dogger Formation, Saltwick Formation, Eller Beck Formation and Cloughton Formation (Undifferentiated) Dogger Ironstone [Obsolete: use DGR] Doggy Coal Doghole Coal (South Lancashire) Doghole Mine Rock [Obsolete: use DHMR] Doghole Rock Dol-cyn-afon Formation Dol-cyn-afon Member [Obsolete: use DYN] Doldowlod Conglomerate Member Dolfawr Mudstones Formation Dolgarrog Volcanic Formation Dolgau Mudstone Formation [Obsolete: use DGU] Dolgau Mudstones [Obsolete: use DGU] Dolgau Mudstones Formation Dolgau Mudstones Formation (Lower Tongue) Dolgau Mudstones Formation (Upper Tongue) Dolgellau Formation Dolgellau Formation And Dol-Cyn-Afon Formation (Undifferentiated) Dolgellau Member [Obsolete: use DLU] Dolgelly Beds [Obsolete: use DLU] Dolhir Beds [Obsolete: use DO] Dolhir Formation Doll Member Dollis Hill Gravel Formation [Obsolete: use DHGR] Dollis Hill Gravel Member Dolomite Beds (of Appin) (Not Appin Dolomite) [Obsolete] Dolomitic Beds [Obsolete: use TEDO] Dolomitic Conglomerate [Obsolete: use MMMF] Dolomitic Conglomerate and Red Marl [Obsolete: use MMMF] Dolphinholme Mudstone Dolphinholme Mudstone Formation [Obsolete: use DLP] Dolwen Formation Dolwen Grits [Obsolete: use DOG] Dolwen Mudstones [Obsolete: use BMM] Dolwen Mudstones Formation [Obsolete: use DMF] Dolyfan Conglomerate Member Dolyhir Limestone Formation Don Group [Obsolete: use ZG] Donaghadee Sandstone Formation [Obsolete] Donald's Hill Ignimbrite Formation Donegal Appinite Suite Donegore Plugs [Obsolete] Donside Gneisses [Obsolete: use CRR] Doobally Sandstone Member Doolie Ness Conglomerate Formation [Obsolete: use DNCO] Doolie Ness Conglomerate Member Doon Dyke Swarm Doon Hill Conglomerate [Obsolete: use DHLC] Doon Hill Conglomerate Member Doon Limestone Doonbought Plug Dora Villa Dyke [Obsolete] Dorback Intrusive-Complex Dores Sandstone Dornabac Member (Central Intrusion, Rum Layered Suite) Dornabac Member (Central Intrusion, Rum Layered Suite) [Duplicate: use RLC1] Dornoch Formation Dornoch Mudstone unit Dorrery Sandstone Formation [Obsolete: use DRSM] Dorrery Sandstone Member Dorset Anhydrite [Obsolete] Dorset Stour Formation Double Coal (Coalbrookdale) Double Coal (Warwickshire) Double Coal Rock Doubler Stones Sandstone Dougaled Coal (South Wales) Dougaled Rider Coal (South Wales) Doughend Sandstone Member Douglas Bridge Limestone Member Douglas Coal Douglas Ell Coal Douglas Fireclay Member Douglas Four Foot Coal Douglas Humph Coal Douglas Main Coal (Douglas) Douglas Main Limestone [Obsolete: use HUR] Douglas Muir Quartz-Conglomerate Member Douglas Nine Foot Coal Douglas Parrot Coal Douglas Seven Foot Coal (Douglas) Douglas Six Foot Coal Douglas Smithy Coal Douglas Splint Coal (Douglas) Douglas Stoney Coal Douglas Thirty Inch Coal Douglas Three Foot Coal (Douglas) Douglas Under Limestone [Obsolete: use BBLS] Douglas Water Arenite Formation Douglas Wee Limestone [Obsolete: use BLLS] Douglasbrae Limestone Douk Ghyll Beds [Obsolete: use NORB] Doularg Formation Doulting Beds Dounalt Limestone Formation Dounans Limestone [Obsolete: use DSLM] Dounans Limestone Formation Dounreay Shore Formation Dounreay Siltstone Member [Obsolete: use DRAY] Doup Crag Tuff Member Doupster Oil Shale Dove Crag Member [Obsolete: use DOCR] Dove Crag Tuff Member Dove Hole Formation Dove Holes Tuff Dove Rock Vent Dovedale Limestone [Obsolete] Dovestone Redbeds Formation Dovey Valley Formation Dowbridge Mudstone Formation Doweel Breccia Formation Dowhills Beds [Obsolete: use DHLS] Dowhills Mudstone Formation Dowlais Limestone [Obsolete: use GACA] Dowlais Limestone Formation Down Cliff Clay [Obsolete: use DCC] Down Cliff Clay Member Down Cliff Sand Member Down Cliff Sand Member And Thorncombe Sand Member (Undifferentiated) Down Cliff Sands [Obsolete: use DCSA] Down Cliffs Clay [Obsolete: use DCC] Down Hill Marine Band [Local Name: see CAMB] Downan Point Lava Formation Downend Formation [Obsolete: use DN, WINT] Downend Formation and Mangotsfield Formation (Undifferentiated) [Obsolete: use DNMG] Downend Group [Obsolete: use DN] Downend Member Downend Member And Mangotsfield Member (Undifferentiated) Downholland Silt Downie Point Conglomerate [Obsolete: use DPCO] Downie Point Conglomerate Formation [Obsolete: use DPCO] Downie Point Conglomerate Member Downie's Loup Sandstone Formation [Obsolete: use CYD] Downies Loup Sandstones (Stirling) [Obsolete: use CYD] Downton Castle Sandstone Formation Downton Castle Sandstone Formation And Temeside Mudstone Formation (Undifferentiated) Downton Castle Sandstone Group [Obsolete: use DCS] Downton Farm Gravel Member Downton Marls [Obsolete] Downton Series [Obsolete: use DOW] Downton Subgroup [Obsolete: use MIH] Downtonian Red Marl [Obsolete: use LG] Downtonian sandstone including quartzite-conglomerate [Obsolete: use MAWO] Downwash Gravel Dowra Sandstone Member Dowsing Dolomite Formation [Obsolete: use DWDL] Dowsing Formation Dowsing Formation and Dudgeon Formation Doxall Coal (Bristol Area) Doyle Gneiss Drake Formation Drake Sub-Unit [Obsolete: use DRKE] Drap Coal (South Wales) Draughton Limestone Draughton Shales Dredged or Drainage Channel Drefach Group Drews Coal (South Wales) Drift (Undifferentiated) [Obsolete: use SUPD] Drift deposits [Obsolete: use GBG] Drift Geology Not Mapped [For Digital Map Use Only] [Obsolete: use SUPNM] Drigg Beach Till Member Drigg Holm Sand Member Drigg Moorside Silt Member Drigg Point Sand Formation Drigg Till Formation Drimmie Lava Member Droitwich Halite Formation [Obsolete: use DHT] Droitwich Halite Member Dromore Sandstone Member Dronach Shale Member [Obsolete: use LDYW] Dropping Craig Bed Dropping Craig Formation [Obsolete: use DRP] Drosgol Beds [Obsolete: use DRF] Drosgol Formation Drosgol Grits [Obsolete: use DRF] Drosgol Group [Obsolete: use DRF] Dross Coal Drowsell Coal (North Wales) Druid Conglomerate [Obsolete: use DRC] Druid Conglomerate Member Druid Conglomerates [Obsolete: use DRC] Druim An Fhurain Sandstone Member Druim Chuibhe Psammite Formation [Obsolete: use KLPS] Druim Fada Quartzite Member Druim Na Saille Pelite Formation Drum Fireclay Drumadoon Intrusion (South Arran) Drumard Member Drumarg Conglomerate Formation Drumbeg Formation [Obsolete: use DRBG] Drumbeg Sand and Gravel Formation Drumbrick Sandstone Member Drumchastle Pale Limestone Formation Drumchorick Siltstone Formation Drumchorick Siltstone Formation, Benbulben Shale Formation And Tubbrid Sandstone Formation (Undifferentiated) Drumcullen Formation Drumderfit Conglomerate Member Drumflugh Limestone Member Drumgesh Shale Formation Drumgivery Limestone Member Drumgrange Limestone Drumhirk Formation Drumkeeran Siltstone Formation [Obsolete: use DKSF] Drumlish Conglomerate Formation Drumlish Formation [Obsolete: use DISH] Drumlithie Sand and Gravel Formation Drumman More Sandstone Formation Drummangarvagh Member Drummock Beds [Obsolete: use DKG] Drummock Group [Obsolete: use DKG] Drummore Gravel Formation Drummore Gravel Member [Obsolete: use DRGR] Drummournie Biogenic Member Drummuck Subgroup Drummuir Calcareous Member Drumnessie Lava Member Drumnessie Lavas [Obsolete: use DNLA] Drumochter Succession Drumocter Succession [Obsolete: use GCKP] Drumowen Sandstone Member Drumpark Marine Band Drumskinny Sandstone Member Drumwhirn Member Drumyork Flags [Obsolete: use DYF] Drumyork Flags Formation Dry Doddington Nodule Bed Dry valley deposits Drybrook Limestone [Obsolete: use DS, HBO] Drybrook Limestone Formation [Obsolete: use HBO] Drybrook Sandstone Group [Obsolete: use CHSA] Dryburn Foot Limestone Dryburn Limestone [Obsolete: use GL] Dryden Flags [Obsolete: use DRY] Dryden Flags Formation Dryden Formation [Obsolete: use DRY] Dryden Limestone Dryden Shales [Obsolete: use DRY] Drygarn Conglomerate [Obsolete: use CBN] Drygill Mudstone Formation Drygill Shales [Obsolete: use DRSH] Dubh Loch Member [Obsolete: use ALBE] Duchray Hill Gneiss [Obsolete: use DHGN] Duchray Hill Gneiss Member Dud Sandstone Duddo Limestone Duddon Bridge Tuff Member Duddon Bridge Tuffs [Obsolete: use DH, DBT] Duddon Conglomerate Member Duddon Hall Tuff Formation Duddon Hall Tuffs [Obsolete: use DH] Dudgeon Formation Dudgeon Saliferous Formation [Obsolete: use DGSL] Dudley Basaltic Sill-and-vent-swarm Dudley Limestone [Obsolete] Dufftown Limestone Member Dufton Shale Formation Dug Head Sandstone Member [Obsolete: use DHS] Duke Coal (Rothbury Area) [Obsolete: use BRMN] Duke Coal (South Wales) Dukinfield Marine Band [Local Name: see AGMB] Dulais Coal (South Wales) Dulas Bay Subgroup Dulas Coal (South Wales) Dulas Coal And Nine Feet Coal Dulas Limestone [Obsolete: use DLSL] Dulas Limestone Formation [Obsolete: use LEEL] Dulcey Dock Member Dull Coal (West Yorkshire) Dullan Member [Obsolete: use GOLS] Duloch Sandstone Duloch Under Limestone Dumbarton Rock Plug Dumblar Rigg Sandstone Dumbreck Cloven Coal (Central Coalfield) Dumbreck Sandstone Dumdruff Hill Lava Member Dumdruff Hill Lavas [Obsolete: use DHLA] Dumfries Sandstone [Obsolete: use LCH] Dump Marine Band Dun Caan Shale Member Dun Coal (Scremerston) Dun Gallain Grit Formation Dun Limestone [Obsolete: use DNL] Dun Limestone Member Dun Member Dun Scalpsie Banded Amphibolite Dunaghy Formation Dunain Hill Conglomerate Formation Dunalastair Quartzite Formation Dunalastair Semipelite Formation Dunans Clay Member Dunans Shale Member Dunaskin Clayband Ironstone Dunaskin Fireclay Dunaskin Limestone Dunaskin Rock Dunbar Sandstone Formation Dunbarella Bed Dunbeath Till [Obsolete: use DUTI] Dunbeath Till Formation Dunblane Formation [Obsolete: use DUF, TEF] Dunblane Member [Obsolete: use DUF] Dunblane Sandstone Member Dunchideock Volcanics [Obsolete] Dunconnel Hill Plug Dundarg Castle Conglomerate [Obsolete: use DCST] Dundarg Conglomeratic Sandstone Formation [Obsolete: use DDG] Dundarg Sandstone Formation Dundary Castle Sandstone Formation [Obsolete: use DCST] Dundee Flagstone Formation Dundee Formation [Obsolete: use DEF] Dundonald Sill Dundry Freestone Dune sandstone [Obsolete: use BRI] Duneaton Volcanic Formation Dunfallandy Hill Pluton Dunfermline Splint Coal (Fife) Dunfermline Under Coal (Fife) Dungavel Group Dungavel Hill Conglomerate Member Dungeon Ghyll Member [Obsolete: use DGY] Dungeon Ghyll Sandstone Member Dungiven Formation Dungiven Formation [Duplicate 1: use DUNN] Dungiven Formation [Duplicate 2: use DUNN] Dungiven Limestone [Obsolete: use DUNN] Dunglass Coal Dungoil Linear Vent-System Dungy Drift [Obsolete: use DYDC] Dungy Drift Coal (Somerset) Dungy Head and Dancing Ledge members (Isle of Purbeck) [Obsolete: use POCH] Dunion Hill Plug Dunkeld Grit Dunkpool Limestone Dunlin Group Dunlin Shale Member [Obsolete: use DRKE] Dunlin Shale Unit [Obsolete: use DUNL] Dunlin Silt Unit [Obsolete: use DUNL] Dunlin Siltstone Member [Obsolete: use AMND, BURT, COOK] Dunnage Copse Gravel Member Dunnerdale Formation [Obsolete: use DNF] Dunnerdale Sandstone Formation Dunnerdale Tuffs [Obsolete: use DNF] Dunnet Head Sandstone Formation Dunnet Head Sandstone Group [Obsolete: use DUH, OYS] Dunnet Marls Dunnet Sandstone Dunnet Sandstone Group [Obsolete: use DUH] Dunnet Shale Dunnet Shell Bed Dunnottar and Crawton Groups (Undifferentiated) [Obsolete: use DRCR] Dunnottar Castle Conglomerate Formation Dunnottar Castle Formation [Obsolete: use CHAV] Dunnottar Conglomerate [Obsolete: use DRG] Dunnottar Group [Obsolete: use CRN, DRCR] Dunnottar-Crawton Group Dunoon Phyllite [Obsolete: use DCDP] Dunoon Phyllite Formation Dunphail Semipelite Formation Dunrobin Bay Formation [See Also DUNR] Dunrobin Bay Group [See Also DRB] Dunrobin Beds [Obsolete: use DRB] Dunrobin Castle Member Dunrobin Pier Conglomerate Member Dunrossness Phyllite [Obsolete: use DUPH] Dunrossness Phyllitic Formation Dunrossness Phyllitic Formation [Duplicate: use DUPH] Dunrossness Phyllitic Group [Obsolete: use DUPH] Dunrossness Spilitic Formation Dunrossness Spilitic Group [Obsolete: use DUSP] Dunscombe Mudstone Formation [Obsolete: use AS, BCMU] Dunside Formation Dunsil And First Waterloo Coal (Vale Of Belvoir) Dunsil Coal (West And South Yorkshire, Nottingham And Derby) Dunsmore Gravel Member Duntulm Formation Dunwich Group Dura Den Fish Bed [Obsolete: use DDF] Dura Den Formation [Obsolete: use DDF] Dura Den Member Durbog Coal (North Wales) Dure Clough Sandstone Dure Clough Sandstones Member [Obsolete: use DUCS] Durham Complex [Obsolete: use TYWE] Durham Fissure Fillings [Obsolete: use CEDN] Durham Low Main Coal (Northumberland And Durham) Durham Low Main Post Sandstone Durham Lower Till (boulder clay) [Obsolete: use WETI] Durham Lower Till [Obsolete: use BHTI] Durham Member Durham Upper Till [Obsolete: use HNTI] Duricrust Durine Formation Durine Group [Obsolete: use DUR] Durisdeer Formation Durley Sand Member Durlston Beds [Obsolete: use DURN] Durlston Formation Durn Hill Quartzite [Obsolete: use ARPS] Durn Hill Quartzite Formation Durness Group Durness Limestone or Eriboll Limestone [Obsolete: use DNG] Durness or Eriboll Series [Obsolete: use DNG] Durnhill Quartzite [Obsolete: use KYQU] Dutch Classification System [Root term only - reserved for possible future use] Dwfor Mudstone Formation Dwyfach Formation Dyehouse Coal (South Lanacashire) Dyffryn Flags [Obsolete: use DFN] Dyffryn Flags Facies (Caban Conglomerate Formation) Dyffryn Flags Facies [Obsolete: use DFN] Dyffryn Flags Facies Formation [Obsolete: use DFN] Dyffryn Mymbyr Tuff Dykebar Coal Dykebar Limestone Dykebar Marine Band Dykebar Marls Dykeneuk Limestone [Obsolete: use CAL] Dyneley Knoll Flags Dyrham Formation Dyrham Formation And Beacon Limestone Formation (Undifferentiated) Dyrham Formation And Marlstone Rock Formation (Undifferentiated) Dyrham Rock [Obsolete] Dyrham Silt(s) [Obsolete: use DYS] Dyrham Siltstone Formation [Obsolete: use DYS] Dysart Main Coal (Fife) Dysart Musselband Dyserth Limestone Group (Knoll-Reef) Dyserth Limestone Group [Obsolete: use CLWYD] Dyserth Limestone Group [Obsolete: use CRAV] Dyserth Quarry Limestone [Obsolete: use LNML] Eagle Crag Member [Obsolete: use EAGC] Eagle Crag Sandstone Member Eagle Crag Tuffs and Honister Slates [Obsolete: use EAGC] Eagle Moor Member [Obsolete: use EMSG] Eagle Moor Sand and Gravel [Obsolete: use EMSG] Eagle Moor Sand and Gravel Member Eagle Sandstone Eaglesham Lava Member Eaglesham Lavas [Obsolete: use CBLA, EMLA] Earl David's Parrot Coal (Fife) Earlswood Till Early Cambrian Rocks (Undifferentiated) Early Permian Dyke (Within MCPAD) Early Permian Intrusion (Within MCPAI) Earn Gravel [Obsolete: use TEGR] Earnley "Division" [Obsolete] Earnley 'Division' [Obsolete: use MARF, EA] Earnley Formation [Obsolete: use EA] Earnley Sand Formation Earnley Sand Formation And Marsh Farm Formation (Undifferentiated) Earnock Blackband Ironstone Earnock Clayband Ironstone Earth flow deposits Earthwork Sandstone Earthy Coal (Lancashire) Earthy Delf Eas Mor Granite (Western Red Hills Centre: Phase 9) Easdale Slate [Obsolete: use DBES] Easdale Slate Formation Easdale Subgroup Easebourne Member Easington Formation [Obsolete: use EASN] Easington Raised Beach Formation East Barra Meta-Igneous Complex East Brow Member East Burra Group East Carlton Grit East Durham Till Formation [Obsolete: use NSG] East Fife Basanitic And Foiditic Plugs And Vents East Glen Tilt Pluton [Obsolete: use CLACH] East Grampian (Albion) Glacigenic Subgroup East Grampian Drift Group [Obsolete: use EGD] East Grampian Glacigenic Group [Obsolete: use EGD] East Grampian Glacigenic Subgroup East Grange Till Member [Obsolete] East Greenland Province East Harbour Formation [Obsolete: use CHST] East Kilbride Common Coal East Kirkton Limestone East Leys Member [Obsolete: use CORSE] East Leys Till [Obsolete: use CORSE] East Linton Lava Member East Linton Member [Obsolete: use ELLA] East Lothian Basanite And Foiditic Plugs And Vents East Lothian Subsuite (Of MCLFS) East Ogwell Limestone [Obsolete: use EOL] East Ogwell Limestone Formation East Stayvoyage Vein East Thelma Member [Obsolete: use BRAE] East Wear Bay and Abbots Cliff Formations [Obsolete: use ZZCH] Easter Glen Quioch Psammite [Obsolete: use TAPS] Easter Main Coal Eastern Glenelg Gneiss Eastern Gneiss And Sand Voe Group [Intimate Mixture] Eastern Gneisses Eastern Gneisses and Hillswick Group (Undifferentiated) Eastern Granite (Northmaven Pluton) Eastern Intrusion (Rum Layered Suite) Eastern Layered Intrusion (Rum Layered Suite) [Obsolete: use RLE] Eastern Layered Intrusion, Unit 1 (Rum Layered Suite) Eastern Layered Intrusion, Unit 10 (Rum Layered Suite) Eastern Layered Intrusion, Unit 11 (Rum Layered Suite) Eastern Layered Intrusion, Unit 13 (Rum Layered Suite) Eastern Layered Intrusion, Unit 14 (Rum Layered Suite) Eastern Layered Intrusion, Unit 15 (Rum Layered Suite) Eastern Layered Intrusion, Unit 2 (Rum Layered Suite) Eastern Layered Intrusion, Unit 3 (Rum Layered Suite) Eastern Layered Intrusion, Unit 5 (Rum Layered Suite) Eastern Layered Intrusion, Unit 7 (Rum Layered Suite) Eastern Layered Intrusion, Unit 8 (Rum Layered Suite) Eastern Layered Intrusion, Unit 9 (Rum Layered Suite) Eastern Red Hills Centre (Skye Central Complex) Eastern Uriconian [Obsolete: use UO] Eastern Yar River Formation Eastertown Siltstone Member Eastgate Formation [Obsolete: use CARM, EGT, WGAT] Eastgate Formation and Newside Arenite Member [Obsolete: use NWAE] Eastgate Sandstone Member Easton Anhydrite Member Easton Bavents Clay Member [Obsolete: use CFC] Easton Four Feet Coal (Bristol Area) Easton Seven Feet Coal (Bristol Area) Eastside Marine Band Eathie Beds Eathie Fish Bed Ebchester Formation Ebchester Sand And Gravel Formation Eccliffe Member Eccup Marine Band Ecton Limestone Formation Ecton Limestones Formation (Knoll-Reef) Ecton Limestones Formation [Obsolete: use ECL] Ecton Member Edale Shale Group [Obsolete: use BSG] Edale Shales [Obsolete: use BSG, ESH] Eday Beds [Obsolete: use EDY] Eday Flags [Obsolete: use EDF] Eday Flagstone Formation Eday Group Eday Lavas [Obsolete: use DSV] Eday Marl [Obsolete: use EDMA] Eday Marl Formation Eday Sandstones [Obsolete: use EDY] Eday Volcanic Rocks [Obsolete: use DSV] Eday Volcanics [Obsolete: use DSV] Edder Acres Formation [Obsolete: use TYWE] Edderton Fish Bed Eddystone Gneiss Eden Member [Obsolete: use EDTI] Eden Shales Formation Edendork Coal Edenside Till Member Edenvale Beds [Obsolete] Edergole Formation Edergole Sandstone [Obsolete: use EGS] Ederny Limestone Member Edge Hill Eleven Foot And Three Foot Coals (New Cumnock Area) Edge Hill Nine Foot Coal (New Cumnock Area) Edge Hill Twelve Foot Coal (New Cumnock Area) Edge Marine Band Edgton Limestone [Obsolete: use EL] Edgton Limestone Member Edinburgh Castle Plug Edlington Formation Edmondia Coal (Nottingham) Edmondia Marine Band Edmondia Punctatella Bed Edwalton Formation [Obsolete: use EDW] Edwalton Member Edzell Mudstone Formation [Obsolete: use CXF] Edzell Mudstones [Obsolete: use EDM] Edzell Sandstone Formation [Obsolete: use THF] Edzell Sandstones [Obsolete: use EDS] Eelwell Limestone [Obsolete: use EWL] Eelwell Limestone Member Eem Formation Eemian mud and sand, interbedded (offshore) Eemian To Weichselian Diamicton, Firm To Hard (Offshore) Eemian to Weichselian gravel (offshore) Eemian to Weichselian mud, firm to hard (offshore) Eemian to Weichselian sand (offshore) Eemian to Weichselian sand and gravel, interbedded (offshore) Eemstelsel [Obsolete: use EE] Egedale Slate Formation [Obsolete: use DAKP] Eggardon Chert Beds Eggardon Grit [Obsolete: use ECG] Eggardon Grit Member Eggesford-Type Culm [Obsolete: use BEAL, CKF] Egginton Common Member [Obsolete: use EGSG] Egginton Common Sand and Gravel [Obsolete: use EGSG] Egginton Common Sand and Gravel Member Eglinton Member Eglinton Shelly Till Member Eglish Sandstone Formation Eglwys Rhobell Formation Eglwyseg Limestone [Obsolete: use LGHL] Eglwyseg Limestone Formation [Obsolete: use LGHL] Egmond Ground Formation Ehen Alluvium Formation Ehen Valley Sand And Gravel Member Ehen Valley Silt Member Eidda Formation [Obsolete: use CEI] Eigg Lava Formation Eight Feet Coal (South Staffordshire) Eight Foot Coal Eight Yard Limestone [Obsolete: use FFL] Eight-Yard Limestone Eighteen Inch Coal Eighteen Inch Coal (Cumbria) Eighteen Inch Coal (South Wales) Eil-Arkaig Dyke Swarm Eilde Flags [Obsolete: use GRAM] Eilde Flags Formation Eilde Quartzite [Obsolete: use DAEQ] Eilde Quartzite Member Eilde Schist [Obsolete: use DAES] Eilde Schist Member Eilde, Binnein and Glen Coe Quartzites [Obsolete: use DALO] Eildon Hills Laccolith Eilean A'Bhaird Member Eilean Dubh Formation Eilean Dubh Formation And Ghrudaidh Formation (Undifferentiated) Eilean Dubh Group [Obsolete: use ELD] Eilean Liath Grit Formation Eilean Shona Neck Eilean Siar Glacigenic Group Eileans Sandstone Member Ekofisk Formation Elbow Deposits [Obsolete: use ELW] Elbow Formation Eldersfield Formation [Obsolete: use ELM] Eldersfield Mudstone Formation [Obsolete: use SIM] Eldroth Grit Eldroth Grit Formation [Obsolete: use EDG] Element of Kirkhill Upper Till [Obsolete: use CORSE] Elenid Formation [Obsolete: use ELTI, WALES] Elenid Till Member Elgin Calcrete Formation Elgol Sandstone Formation Elidir Group Elie Eleven Foot Coal Elie Salt Coal Ell Coal Ell Coal (Central Coalfield) Ell Coal (Dailly) Ell Coal (Warwickshire) Ell Coal and Ryder Coal (Undifferentiated) (Warwickshire) Ell Index Coal (Central Coalfield) Elland Flags Elland Flagstones Leaf 1 Elland Flagstones Leaf 2 Elland Flagstones Leaf 3 Elland Flagstones Leaf 4 Elland Flagstones Leaf 5 Elland Flagstones Leaf 6 Elland Flagstones Leaf 7 Elland Flagstones Leaf 8 Elland Flagstones Leaf 9 Ellel Crag Sandstone Ellen Coal [Obsolete: use UNMH] Ellen Seam Ellenora Coal (Douglas) Ellens Geo Conglomerate Ellenthorpe Gill Limestone Eller Beck Bed [Obsolete: use EBB] Eller Beck Formation Ellerbeck Formation Ellergill Beds Ellerick Formation Ellerker Limestone [Obsolete: use LLL] Ellerker Limestone Member [Obsolete: use ELL] Ellery Syke Limestone Ellon Formation Ellwand Slate Elmsall Coal (West Yorkshire) Elrick Psammite And Semipelite Formation Elsham Sandstone Formation [Obsolete: use ELS] Elsham Sandstone Member Elspeth Formation Elspeth Sequence [Obsolete: use ELSP] Elsterian To Holsteinian Deposits, Undifferentiated (Offshore) Elsterian To Holsteinian Diamicton, Firm To Hard (Offshore) Elsterian to Holsteinian mud and sand, interbedded (offshore) Elsterian to Holsteinian mud, firm to hard (offshore) Elsterian to Holsteinian sand (offshore) Elswick Mudstone Formation Elsworth Rock [Obsolete: use ELR] Elsworth Rock Formation Elsworth Rock Group [Obsolete: use ELR, WWB] Elsworth Rock Series [Obsolete: use WWB] Elsworth Series [Obsolete: use ELR] Elton Beds [Obsolete: use ELT] Elton Formation Elton Group [Obsolete: use ELTU] Elvans [Obsolete] Elveden Formation Elvington Glacial Lake Formation [Obsolete: use ELV] Elvington Glaciolacustrine Formation Elwick Member [Obsolete: use ELWK] Elwick Moraine Member Elwy Formation Elwy Group [Obsolete: use EY] Elygrain Vent Ember Lane Basaltic Pyroclastic-Breccia Vent Embleton Diorite [Obsolete: use EMBL] Embleton Microdiorite Intrusions Embsay Limestone [Obsolete: use EML] Embsay Limestone Member Embury Shale Emerald Formation Emerald Sandstone [Obsolete: use EMLD] Emley Rock Endrick Formation [Obsolete: use ENDR] Endrick Sand Member Enfield Silt Formation [Obsolete: use ESI] Enfield Silt Member Engan Spilitic Formation Engineered Embankment (Undivided) Engineered Excavation (Undivided) Engineering Excavation (Tunnelling) [Obsolete: use DSR] Enler Group Ennerdale Granite [Obsolete: use ESK] Ennerdale Granophyre [Obsolete: use ENIN] Ennerdale Intrusion Ennerdale Intrusion, diorite [Obsolete: use ENIN] Ennerdale Intrusion, granite [Obsolete: use ENIN] Ennerdale Intrusion, granophyre [Obsolete: use ENIN] Ennerdale Intrusion, microdiorite [Obsolete: use ENIN] Enterkin Mudstone Formation Enville Beds [Obsolete: use EB, EN] Enville Breccia [Obsolete] Enville Formation [Obsolete: use EN] Enville Member Eocene And Oligocene Rocks (Undifferentiated) Eocene Rocks (Undifferentiated) Eocene To Miocene Rocks (Undifferentiated) Eocene To Pliocene Rocks (Undifferentiated) Epidotic Grit Formation [Obsolete: use TBE] Equivalent To Pendle Top Grit. Equivalent To The Lower Part Of The Culver Chalk Equivalent To The Upper Part Of The Culver Chalk Erbistock Formation [Obsolete: use HA, SAL] Erbistock Group [Obsolete: use ERB] Ercall Granophyre Eriboll Formation Eriboll Group [Obsolete: use ARDV] Eriboll Sandstone Formation [Obsolete: use ERSA] Eriboll Sandstone Group [Obsolete: use ERSA] Eriksson Formation [Obsolete: use STAT] Eriksson Member [Obsolete: use STAT] Erins Quartzite [Obsolete: use DBEQ] Erins Quartzite Formation Eriswell Member Erlend Acid-Intermediate Intrusives Erlend Basalts Erlend Silicic Intrusives Ernan-Glass Metabasic Swarm Errington Member Errol Beds [Obsolete: use ERRCL] Errol Clay Formation Errol Member Erskine Clay Member Erskine Formation [Obsolete: use ERSK] Erwan Fach Formation Eryri Formation [Obsolete: use LNTI, WALES] Eryry Glacigenic Formation Escarpment Member Escrick Moraine [Obsolete: use ESKRM] Escrick Moraine Member Esha Ness Sedimentary Rocks Esha Ness Volcanic Formation Esk Evaporite Formation [Obsolete: use EEV] Esk Evaporite Member Esk Pike Formation [Obsolete: use ESP] Esk Pike Hornstone [Obsolete: use ESP] Esk Pike Sandstone Formation Eskbank Wood Formation Eskdale Granodiorite [Obsolete: use ESK] Eskdale Group [Obsolete: use ZG] Eskdale Intrusion [Obsolete: use ESK] Eskdale Intrusion, granite [Obsolete: use ESK] Eskdale Intrusion, granodiorite [Obsolete: use ESK] Eskdale Intrusion, microgranite [Obsolete: use ESK] Eskdale Intrusions Eskdale Moor Injection Breccia Eskdale Pluton [Obsolete: use ESK] Eskdalemuir Dyke Eskdalemuir Formation Esker [Obsolete: use EK] Esker deposits Eskett Limestone Formation Eskmouth Extra Coal Essex White Ballast [Obsolete: use KGCA] Essie Till Formation Estheria Shales [Obsolete: use LASH] Estheria Shales plus Mytilus Shales [Obsolete: use LASH] Estuarine "Series" [Obsolete] Estuarine Alluvium [Obsolete: use TFD] Estuarine alluvium and higher estuarine alluvium [Obsolete: use SLEV] Estuarine Limestones [Obsolete: use WBRO] Estuarine Series [Obsolete: use BOCO] Etive Dyke Swarm Etive Formation Etive Pluton Etive Plutonic Complex [Obsolete: use ETIVE] Etive Rhyolite Member Etive Sub-Unit [Obsolete: use ETVE] Etruria Formation Etruria Formation, Halesowen Formation And Salop Formation (Undifferentiated) Etruria Marl [Obsolete: use ETM] Etruria Marl Formation [Obsolete: use ETM] Etruria Marl Series [Obsolete: use ETM] Ettrick Group Ettrick Sandstone [Obsolete: use BNSA] Ettrickbridge Formation Etwall Member [Obsolete: use ETSG] Etwall Sand and Gravel [Obsolete: use ETSG] Etwall Sand and Gravel Member Eumorphoceras bisulcatum Marine Band [Obsolete: use E2A2] Eumorphoceras ferrimontanum Marine Band Eumorphoceras ferrimontanum Marine Band [Duplicate: use E2A2] Eumorphoceras pseudobilingue Marine Band [Obsolete: use E1B2] Eumorphoceras yatesae Marine Band Eumorphoceras yatesae Marine Band [Duplicate: use E2A3] Eureka Coal (South Derbyshire) Ewingston Sill Excavata Beds [Obsolete: use SHIP] Exceat Flint Excelsior Coal (Leicestershire) Exe Breccia [Obsolete: use EBR] Exe Breccia Formation Exe Valley Formation Exeter Group Exhall Conglomerate [Obsolete: use EXSA] Exhall Sandstone Exminster Breccias [Obsolete: use HVBR] Exminster Conglomerates [Obsolete: use HVBR] Exmoor Group Exmouth Beds [Obsolete: use AYB] Exmouth Formation [Obsolete: use EMSA] Exmouth Mudstone and Sandstone Formation Exmouth Mudstone and Sandstone Member [Obsolete: use EMSA] Exmouth Sandstone and Mudstone [Obsolete: use EMSA] Exmouth Sandstone and Mudstone Formation [Obsolete: use EMSA] Exmouth Sandstones [Obsolete: use EMSA] Exmouth Sandstones and Mudstones [Obsolete: use EMSA] Exogyra Nana Beds [Obsolete: use OKLY] Exogyra Nana Clay [Obsolete: use OKLY] Exogyra Nana Zone [Obsolete: use OKLY] Expanded Standard Black Band Succession [Obsolete: use PLMA, BKBD] Extensus Flags Eyam Group [Obsolete: use EYL] Eyam Limestone Formation Eyam Limestones Formation (Flat-Reef) Eyam Limestones Formation (Knoll-Reef) Eyam Limestones Formation [Obsolete: use EYL] Eycott Group [Obsolete: use EVG] Eycott Lava [Obsolete: use EVG] Eycott Volcanic Group Eyebroughty Sill Eyebroughty Vent Eyemouth Vent Eyemouth Volcanic Formation Eyford Member Eyford Sandstone Member [Obsolete: use EYF] Eymore Farm Marine Band [Local Name: see AGMB] Eynort Mudstone Formation Eynsham Gravel and Stanton Harcourt Gravel [Obsolete: use SURA] Eype Clay [Obsolete: use EYCL] Eype Clay Member Eype Mouth Limestone Member F Seam F1 F1 And F2 Fachwen Formation Fachwen Formation And Minfford Formation (Undifferentiated) Fahan Grits Fahan Slates Fair Head Sill Fair Isle Group Fair Sandstone Unit Fairbottom Coal (South Lancashire) Fairbottom Mine Coal [Obsolete: use FMCO] Fairlie Sandstone Formation Fairlight Clays Fairmilehead Volcanic Member Fairmilehead, Braids and Blackford [Obsolete: use BRAI, FAI, BLCK] Fairy Cave Mudstone Member Falcarragh Limestone Falfield Beds Falhouse Rock Fallgate Volcanic Formation Fallowhill Coal Falls Falls of Phones Semipelite Formation Falmouth Beds [Obsolete: use GRO, PORO] Falmouth Series [Obsolete: use GRO, PORO] False Bedded Grit [Obsolete: use BAQ] False Bedded Limestone [Obsolete: use TOF] False Bedded Quartzite, Lower Quartzite [Obsolete: use BAQ] False Ell Coal (Derby) False-Bedded Quartzite Formation [Obsolete: use BAQ] False-Bedded Quartzite Member [Obsolete: use BAQ] Fan Gravel Fanad Pluton Fankerton Limestone Fanogle Sandstone [Obsolete: use MEST] Far House Member Faraday House Shell Bed Marine Band Faraday Road Member Farclas Sand Member [Obsolete: use BETR] Farden Member Farewell Rock [Obsolete: use TELPP] Farigaig Formation Faringdon Sand Formation Faringdon Sponge Gravel Member Faringdon Sponge Gravels [Obsolete: use FSG] Farley Member [Obsolete: use TKB] Farlington Marls (One) Farlington Marls (Two) Farlough Coal Farlow Group [Obsolete: use FRL] Farlow Sandstone Formation Farlow Sandstone Group [Obsolete: use FRL] Farlow Series [Obsolete: use FRL] Farm Coal (South Wales) Farne Group Farnham Glaciofluvial Formation Faroe Group Faroe Plateau Basalts Faroe Plateau Lava Group Faroe-Shetland Channel Formation Faroe-Shetland Channel Sequence [Obsolete: use FSC] Faroes Province Farragon Beds [Obsolete: use FAVO] Farragon Volcanic Formation Farrington Formation [Obsolete: use FRF] Farrington Formation and Barren Red Formation (Undifferentiated) [Obsolete: use FABR] Farrington Formation, Barren Red Formation, Radstock Formation and Publow Formation [Obsolete: use FBRP] Farrington Group [Obsolete: use FRF] Farrington Member Farrington Member And Barren Red Member (Undifferentiated) Farrington Member, Barren Red Member, Radstock Member And Publow Member (Undifferentiated) Farriter Bridge Sandstone Member [Obsolete] Fascally Sandstone Member Fascally Siltstone Member Faskadale Laminated Gabbro Zone Faughlin Lava Member Faughlin Lavas [Obsolete: use FGHL] Fauldhead Musselband Fault Zone Rocks, Unassigned Faunal organic deposits [Obsolete: use ORGD] Fawcett Coal (Northumberland) Fawes Wood Limestone Formation Feal Intrusion Fearn Pluton Fearnaght Formation Feldspathic gneiss of Strathy [Obsolete: use MSC] Felin-Wen Formation Felin-Wen Formation And Hendre Shales Formation (Undifferentiated) Fell Green Formation [Obsolete: use BFA] Fell Sandstone Formation Fell Sandstone Group [Obsolete: use FELL] Fells Limestone Fells Shale Felmersham Member Felsenmeer [Obsolete: use BLOC] Felsitic agglomerate [Obsolete: use CMBA, BENS] Felton St Mary's Limestone Fen and Terrace Gravel [Obsolete: use FEG] Fen Clay (Godwin, 1940); Butery Clay (Skertchly, 1877) [Obsolete: use BYD] Fen Clay [Obsolete: use OXC] Fen Clay Formation (part) [Obsolete: use OXC] Fen Farm Limestone [Obsolete: use FFML] Fen Farm Limestones Bed Fen gravel [Obsolete: use ABSG, MRCG] Fen Lower Peat Bed Fen peat Fen Sand and Gravel Fen Silt Fen-Margin Gravel [Obsolete: use FEG] Fence Conglomerate [Obsolete: use WGAT, CARM, FEN] Fence Conglomerate Member Fence Member Fenland Formation Fenton Coal (West and South Yorkshire) Fenton Limestone [Obsolete: use FNTL] Fenton Limestone Bed Fenwick Limestone (Northumberland) Feorlin Sandstone Formation Ferder Formation Fereneze Lava Member Fereneze Lavas [Obsolete: use FZLA] Ferguslie Fireclay Fernagh Andesite and Dacite Formation [Obsolete: use FRNA] Fernagh Formation Fernham Sand Member Fernieslack Palaeosol Bed Fernrag Coal (Somerset) Ferriby Chalk Formation Ferriby Formation [Obsolete: use FYCK] Ferricrete Ferruginous Band [Obsolete: use CI] Ferruginous Flint Ferruginous Limestone Ferruginous Limestone Series [Obsolete: use SMD] Ferruginous Oolite (Belemnite Bed) [Obsolete: use LECK] Ferruginous Sand [Obsolete: use FRS] Ferruginous Sands [Obsolete: use FRS] Ferruginous Sands and Sandstones [Obsolete: use FHMS] Ferruginous Sands Formation Feshiebridge Psammite Formation Fethaland 'Series' [Obsolete: use SDVO] Fethaland Garnet Mica Schist Formation Fethaland Metagabbro Ffairfach Grit [Obsolete: use FFG] Ffairfach Grit Formation Ffairfach Grit Member [Obsolete: use FFG] Ffairfach Group [Obsolete: use FFG] Ffernant Formation Ffestiniog Flags Formation Ffestiniog Formation [Obsolete: use FF] Ffestiniog Group [Obsolete: use FF] Ffinnant Sandstone Formation Ffridd Graig-Wen Formation Ffynnon Limestones Fiachanis Gritty Sandstone Member Fibua Formation Fiddich Sand Member [Obsolete: use BETR] Fiddler Shell Bed Fiddlers Vein Coal (Pembrokeshire) Fidra Sill Field Coal (South Wales) Fiery Coal (In South Wales Middle Coal Measures Formation) Fiery Coal (In Swansea Member, South Wales) Fiery Coal (South Lancashire) Fiery Delf (Lancashire) Fife Ness Beds [Obsolete: use FNB] Fife Ness Formation Fifth (Bushley Green Lower Part) Terrace of the Severn [Obsolete: use BGT] Fifth Level Lacustrine Alluvium (Fermanagh) Fifth Limestone (Cumbria) Fifth Limestone To Seventh Limestone (Undifferentiated) (Cumbria) Fifth Limestone To Sixth Limestone (Undifferentiated) (Cumbria) Fifth or Pershore Terrace (Deposits) [Obsolete: use PERT] Fifth Shale Member Fifth Terrace (Deposits) [Obsolete: use PERT] Fifth Terrace (River Severn) [Obsolete: use BGT] Filltirgerig Beds Fimbriata-Waltoni Bed (sensu lato) and Upper Epithyris Bed [Obsolete: use BLAD] Fin Glen Lava Member Fin Glen Lavas [Obsolete: use FGLA] Finavon Conglomerate Formation [Obsolete: use FCO] Finavon Conglomerate Member Findern Clay Member Findhorn Complex [Obsolete: use FDHN] Findhorn Formation Findhorn Pluton Findhorn Pluton, Phase 1 Findhorn Pluton, Phase 2 Findhorn Pluton, Phase 3 Findhorn Sandstone Group [Obsolete: use FSA] Findhorn Siltstone unit Findlater Castle Quartzite [Obsolete: use FICQ] Findlater Castle Quartzite Member Findlater Flag Formation Findlater Flags [Obsolete: use FIFL] Findochty Quartzite Member Findochty Sub-Group [Obsolete: use FINQ] Findon Fish Bed Findon Group Fine Freestones [Obsolete: use BHO] Finery Coal (South Wales) Finglack Till Formation Finnarts Conglomerate Member Finnie's Main Coal Finsbury Gravel [Obsolete: use FIGR] Finsbury Gravel Member Finstall Member Fintona Beds [Obsolete: use SHAN, FIN] Fintona Group Fintown Pelite Fintry Hills Group [Obsolete: use FHLA] Fintry Hills Lava Member Fiona Formation Fiona Sequence [Obsolete: use FONA] Fionn Choire Formation Fionn Formation Fionn Sequence [Obsolete: use FION] Fionn Subsequence [Obsolete: use FION] Fire Beacon Chert Formation [Obsolete: use COH] Fireach Beag Kyanite Gneiss Member Firebeacon Chert [Obsolete: use TCH] Fireclay Balls Ironstone Fireclay Balls Ironstone (South Staffordshire) Fireclay Coal Fireclay Coal (Birmingham) Fireclay Coal (Cumbria) Fireclay Coal (Somerset) Fireclay Coal (South Staffordshire) Fireclay Group Of Coals (North Wales) Firedamp Coal (North Wales) Firestone Coal (Somerset) Firestone Sandstone Firestone Sill Firestone, Upper Green-Sand or Malmstone [Obsolete: use UGS] First Abden Limestone First Brimham Grit [Obsolete: use LOBM] First Brown Metal Coal (West Yorkshire) First Cromer Till [Obsolete: use HPTI] First Ell Coal (Nottingham and Derby) First Kingshaw Limestone First Limestone (Cumbria) First Limestone [Obsolete: use GL] First Limestone To Second Limestone (Undifferentiated) (Cumbria) First Main Flint First Mine Coal First Northmoor Terrace Deposits [Obsolete: use NO] First or 10 Foot Terrace [Obsolete: use NO] First or Birlington (Birlingham) Terrace [Obsolete: use BRET] First Piper Coal (South Yorkshire, Nottingham and Derby) First Shale Member First Smalley Coal (Leicester and Derby) First Smalley Marine Band [Local Name: see HNMB] First St John's Coal (South Yorkshire And Derby) First Terrace (Deposits) [Obsolete: use BRET] First Terrace [Obsolete: use ME1] First Terrace Deposits [Obsolete: use NO, BRET] First Terrace Deposits or Floodplain Gravels Plus Sunk Channel [Obsolete: use NO] First Terrace of the Ouse [Obsolete: use FELM] First terrace of warp [Obsolete] First Wales Coal First Waterloo Coal (South Yorkshire, Nottingham And Derby) Firth Coal Formation Fish Bed Formation Fishbourne Member Fishburn Estheria Band Fisher Beds [Obsolete: use FIS] Fisher Formation Fishgarth Wood Till Member Fishguard Volcanic Complex [Obsolete: use FIV] Fishguard Volcanic Group Fishguard Volcanic Series [Obsolete: use FIV] Fishpool Farm Grits Fiskavaig Formation Fisson's Quarry Conglomerate Fittleworth Beds [Obsolete: use FIB] Fittleworth Member Fitzroy Member Five Clouds Grit [Obsolete: use FCS] Five Clouds Sandstones Five Feet Coal (Leicestershire) Five Feet Coal (South Wales) Five Foot Coal Five Foot Coal (Milford, South Wales) Five Quarters Coal ( Lancashire) Five Quarters Coal (South Wales) Five Roads Marine Band [Local Name: see EMMB] Five Yard Coal (North Wales) Five Yard Limestone [Obsolete: use FYL] Five Yard Limestone Member Five-Feet Coal (North Staffordshire) Five-Feet-Gellideg Coal (South Wales) Five-Foot Coal (Tranent) Five-Quarter Coal (Northumberland And Durham) Fivestanks Oil-Shale Fjerritslev Formation Fladdabister Limestone (?Formation) Fladen Deposits [Obsolete: use WGDF] Fladen Group Fladen Member Flaggy Delf Coal (South Lancashire) Flags Formation Flagstaff Limestone Formation Flamborough Chalk Formation Flamborough Formation [Obsolete: use FCK, ROWE] Flanders Moss Peat Formation Flandrian deposits [Obsolete: use QHU] Flat Holm Limestone Member Flathill Flint Flatt Coal Flatts Coal (North Staffordshire) Flaxby-Tollerton Moraine Member Fleckies Meadow Conglomerate [Obsolete: use DCST] Fleet Member [Obsolete: use UCB] Fleet Pluton (Phase 1) Fleet Pluton (Phase 2) Fleetwood Dyke Group Fleming Hall Formation [Obsolete: use FLH] Fleming Hall Tuff Formation Fleswick Anhydrite Fleswick Dolomite Fletcher Bank Grit Fletcher Bank Grit and Midgley Grit (Undifferentiated) Flett Formation Flex Coal (Lothian) Flexible Limestone Flichity Semipelite Formation Flint Coal Rock Flinty Gravel Flinty Rhyolites Flitchity Psammite Formation Flixton Member [Obsolete: use BKBD, PLMA] Flockton Coal (Undifferentiated) (West Yorkshire) Flockton Thick Coal (West And South Yorkshire) Flockton Thin Coal (West and South Yorkshire) Flodigarry Shale Member Flood Control Basin Flood Defence Embankment Flood plain gravel [Obsolete] Floodplain gravels [Obsolete] Floodplain sand and gravel [Obsolete] Floodplain terrace [Obsolete] Floodplain terrace deposits [Obsolete] Floodplain terrace deposits and submerged channel [Obsolete] Floodplain terrace deposits plus buried channel [Obsolete] Floor Coal (Nottingham And Derby) Flora Formation Flora Sequence [Obsolete: use FLOR] Floral organic deposits [Obsolete: use ORGD] Flounder Formation Flow Moss Lava Member Flow Moss Lavas [Obsolete: use LFMLA, UFMLA] Flow till Flow Till, Devensian Flows Flugga Sandstone Member Fluid Extraction Fluvial alluvium [Obsolete: use STAY] Fluvial and older river sands and gravels [Obsolete: use ORSG] Fluvial and older river sands and gravels with associated clay [Obsolete: use ORSG] Fluvial deposits Fluvial deposits (Undifferentiated) [Obsolete: use FLUV] Fluvial diatomite Fluvial parts of Swettenham and Lytham formations [Obsolete: use RIBV] Fluvio-aeolian deposits Fluvio-glacial flood gravels [Obsolete: use SHREW] Fluvio-glacial sand and gravel [Obsolete: use GFSG] Fluvio-marine Crag [Obsolete: use NCG] Fluvioglacial Deposits Fluvioglacial Gravel Fluvioglacial sand and gravel [Obsolete: use GFSG] Fluvioglacial Sand and Gravel, Loch Lomond Readvance [Obsolete] Fluvioglacial terrace [Obsolete: use GFTD] Flying Reed Coal Flying Reed Coal (South Staffordshire) Fochabers Sandstone Formation Fochriw Coal (South Wales) Fodderletter Calcareous Flag Formation Fodderstone Gravel Member Foel Ddu Rhyodacite Formation Foel Fadian Formation Foel Formation Foel Formation, Llanarmon Formation And Loggerheads Limestone Formation (Undifferentiated) Foel Formation, Llanarmon Formation And Loggerheads Limestone Formation (Undifferentiated) (Knoll-Reef) Foel Fras Volcanic Complex Foel Grach Basalt Formation Foel Gron Granophyric Microgranite Foel Tyrch Formation Foel Y Ddinas Mudstones [Obsolete: use FYD] Foel Y Ddinas Mudstones Formation Foel-Y-Ddinas Mudstones [Obsolete: use FYD] Fogger Reef Limestone Foggs Coal (South Lancashire) Foggs Mine Coal [Obsolete: use FOGC] Folkeston Coal (Milford, South Wales) Folkeston Vein [Obsolete: use FOLC] Folkestone Beds [Obsolete: use FO] Folkestone Formation Folkestone Formation And Sandgate Formation (Undifferentiated) Folkestone Sands [Obsolete: use FO] Follifoot Grit [Obsolete: use LFG, UF] Folly Coal (Milford, South Wales) Folly Sandstone Folly Vein [Obsolete: use FLYC] Fontmell Magna Sand Fontmell Magna Sand Member [Obsolete: use FMS] Fooden Limestone Foot Coal (Coalbrookdale) Foot Coal (Milford, South Wales) Foot Coal (South Lancashire) Foot Of Whiskey Sike Coal Foot of Whisky Sike Coal (Northumberland) Foot Vein [Obsolete: use FOCO] Foraminifera Marine Band [Local Name: see EMMB] Ford (Magnesian Limestone) Formation [Obsolete: use FML] Ford Formation Ford Formation (Patch-Reef) Ford Formation (Shelf-Edge Reef) Fordell Marine Band Forden Mudstone Formation Forden Mudstones Formation [Obsolete: use FMF] Fordon Evaporite [Obsolete: use FOEV] Fordon Evaporite Formation Fordon Evaporites [Obsolete: use FOEV] Fordyce Limestone Formation Fore Burn Complex Foreland Grits [Obsolete] Forest Bed Forest Clay [Obsolete: use OXC] Forest Hollow Beds [Obsolete] Forest Lodge Member Forest Marble [Obsolete: use FMB] Forest Marble Formation Forest Marble Formation And Cornbrash Formation (Undifferentiated) Forest Of Deer Pluton Forge Sandstone Fork Vein Coal (South Wales) Formerly included in Claragh Sandstone Group [Obsolete: use BNMS] Fornham Member Forres Sandstone Group Forse Till Member Forster's Hill Limestone Fort Augustus Granite Gneiss Fort William Formation Forth Beds [Obsolete: use FH] Forth Catchments Subgroup Forth Clay Formation Forth Formation Forth Valley Formation Forth-Teith Formation [Obsolete: use MVG] Forties Sandstone Member Forty Yard Coal (Somerset Coalfield, Pensford) Forty Yard Coal (South Yorkshire, Nottingham And Derby) Forty Yard Marine Band [Local Name: see MFMB] Forty Yard Seam Forty Yard Vein Coal Fossiliferous mudstones and siltstones [Obsolete: use WLN] Foston Limestones [Obsolete: use FSTL] Foston Member Foughill Complex Dolerites Foughill Complex Granophyres Foul Hosie Limestone Foul Port Mudstone Member Foula Formation Foula Sandstone Foulis Silt Formation Foulport Mudstone Member Foundered strata Four Ashes Sand and Gravel [Obsolete: use FASG] Four Ashes Sand And Gravel Formation Four Ashes Sands and Gravels [Obsolete: use FASG] Four Fathom Limestone [Obsolete: use FFL] Four Fathom Limestone Member Four Feet Coal (Ingleton) Four Feet Coal (Titterstone Clee) Four Feet Coal (Warwickshire) Four Feet Vein Coal Four Foot Coal Four Foot Coal (Cheadle) Four Foot Coal (Derbyshire) Four Foot Coal (Wyre Forest) Four Foot Earth Fireclay Four-Feet Coal (South Wales) Fourlaws Coal (Northumberland) Fourlaws Limestone Fourteen Inch Under Coal [Obsolete: use PFIUC] Fourteen-Inch Coal (Glasgow Area; Central Coalfield) Fourth (Kidderminster) Terrace of the Severn [Obsolete: use KRT] Fourth Hosie Limestone Fourth Limestone (Cumbria) Fourth Limestone [Obsolete: use ESKT] Fourth Limestone To Seventh Limestone (Undifferentiated) (Cumbria) Fourth Limestone To Sixth Limestone (Cumbria) Fourth or Ailstone Terrace (Deposits) [Obsolete: use CRTD] Fourth or Hanborough Terrace Deposits [Obsolete: use HAN] Fourth Shale Member Fourth Terrace (Deposits) [Obsolete: use CRTD] Fourth Terrace (River Severn) [Obsolete: use KRT] Fourth Terrace [Obsolete: use ME4] Fourth Terrace Deposits [Obsolete: use CRTD, HAN] Fourth Waterloo and First Ell Coal (Vale Of Belvoir) Fourth Waterloo Coal (Nottingham And Derby) Fourth Waterloo Sandstone Fourth Waterloo Sill Fourth, High or 100-Foot Terrace Deposits [Obsolete: use HAN] Fowls Heugh Conglomerate Formation [Obsolete: use WCO] Fownhope Formation Fox Cliff Siltstone Member Foxdale Pluton Foxearth Coal Foxfield Coal (Cheadle) Foxholes Coal (South Lancashire) Foxholes Mine Coal [Obsolete: use FOXH] Foxholes Rock Foxley Tuff [Obsolete: use FT] Foxley Tuff Formation Foxmould and Cowstone Beds [Obsolete: use FXMD] Foxmould Member Foxmould Sands [Obsolete: use FXMD] Foyers Formation Foyers Igneous Complex Foyle Marl Frances Craig Sill Frances Extra Coal Frances Wood Coal Fraser Shale Fraser Shell Bed Fraserburgh Formation Freehay Member Freeland Member [Obsolete: use FL] Freeland Sand and Gravel Member Freeland Terrace Deposits [Obsolete: use FL] Freemanstown Picrite Freestone Series [Obsolete: use POFR] Fremington Member Fresgeo Sandstone [Obsolete: use FGSA] Fresgeo Sandstone Member [Obsolete: use FRSB] Fresgoe Sandstone [Obsolete: use FGSA] Fresgoe Sandstone Bed [Obsolete: use FGSA] Fresgoe Sandstone Member Freshfield Sandstone Member Freshney Sandstone Member Freshwater alluvium [Obsolete: use ALV] Freshwater Beds [Obsolete: use STAM] Freshwater East Formation Freshwater Gravel Member Freshwater West Formation Friar Waddon Member [Obsolete: use PEP] Friars Bay Marls (One) Friars Bay Marls (Three) Friars Bay Marls (Two) Friars Point Limestone Formation Friarton Gravel [Obsolete: use TEGR] Frigate Formation [Obsolete: use FLMR] Frigg Sandstone Member Frith Crag Breccia Member Frith Crag Member [Obsolete: use FRCR] Frith Crag Tuffs [Obsolete: use FRCR] Frizington Limestone Formation Frizington Limestone Formation And Eskett Limestone Formation (Undifferentiated) Frizington Limestone Formation And Sixth Limestone (Cumbria) (Undifferentiated) Frocester Hill Oolite and Selsey Hill Oolite [Obsolete: use CRKY, CLCL] Frodingham Ironstone Member Frodsham Sandstone Member Frog Hall Sand and Gravel [Obsolete: use FRHA] Frog Hall Sand and Gravel Member Frog Lane Coal (South Wales) Froghall Haematite [Obsolete: use FHI] Froghall Ironstone Froghall Stone [Obsolete: use FHI] Froghill Farm Gravel Member Frogmore Gravel Frome Clay and Fuller's Earth (Undifferentiated) [Obsolete: use FEFR] Frome Clay Formation Frome Terrace Deposits, 2 Member Frome Terrace Deposits, 3 Member Frome Terrace Deposits, 4 Member Frome-Piddle Formation Fron Frys Formation Fron Frys Slates [Obsolete: use FFR] Fron Newydd Member Fron-fawr Formation Frondderw Ash [Obsolete: use FRT] Frondderw Tuff Member Froswick Formation [Obsolete: use FSW] Froswick Tuff Formation Froswick Tuffs [Obsolete: use WOU, FSW] Fucoid Beds [Obsolete: use FUB] Fucoid Beds Formation [Obsolete: use FUB] Fucoid Beds Member Fucoid Shales [Obsolete: use FUB] Fulbeck Member [Obsolete: use FULB] Fulbeck Sand and Gravel [Obsolete: use FULB] Fulbeck Sand and Gravel Member Fulledge Thin Coal (Lancashire) Fulledge Thin Mine Coal [Obsolete: use FTCO] Fuller's Earth [Obsolete: use FRC, FE] Fuller's Earth Formation Fuller's Earth Formation and Frome Clay Formation (Undifferentiated) Fuller's Earth Rock Member Fulletby Beds [Obsolete: use ROH] Fulmar Formation Fulmar Sands [Obsolete: use FLMR] Fungle Granite (Mount Battock Pluton) Fungous Coal (Coalbrookdale) Fungus Coal [Coalbrookdale] Funzie Conglomerate Formation Furnace Coal (Lancashire) Furnace Coal (Northumberland) Furnace Coal (Yorkshire) Furze Hill Sandstone Formation [Obsolete: use FHMS] Fyal Lava Member Fydlyn Felsitic Beds [Obsolete: use NGW] Fydlyn Felsitic Formation [Obsolete: use NFFF] Fydlyn Group [Obsolete: use NGW] Fylde Halite Member Fynddog Grits [Obsolete: use DFG] Gaerfawr Formation Gaerfawr Group [Obsolete: use GAFA] Gafallt Shales [Obsolete: use GA] Gafallt Shales Facies (Caban Conglomerate Formation) Gafallt Shales Facies Formation [Obsolete: use GA] Gag Lane Limestone [Obsolete] Gaick Plateau Moraine Formation Gaick Psammite Formation Gair Burn Coal Gair Limestone [Obsolete: use CAL] Gairbeinn Pebbly Psammite Member Gairbeinn Psammite Formation [Obsolete: use BMPP, GABR] Gaisby Rock Gala 7 [Obsolete: use TLEE] Gala Group Gala Group And Hawick Group (Undifferentiated) Gala Unit 1 Gala Unit 2 Gala Unit 3 Gala Unit 4 Gala Unit 4 And Gala Unit 5 (Undifferentiated) Gala Unit 5 Gala Unit 6 Gala Unit 7 Gala Unit 8 Galboly Chalk Formation Galboly Chalk Member [Obsolete: use GCK] Galdenoch Formation Galdenoch Group [Obsolete: use GDF] Gale Seam Gallagh Bridge Formation Galley Sands [Obsolete: use CYSA] Galloway Granitic Suite Gamlan Black Shales [Obsolete: use GMSH, GN] Gamlan Flags and Grits [Obsolete: use GMSH] Gamlan Formation Gamlan Shale Group [Obsolete: use GN] Gamlingay Clay [Obsolete: use AMC] Gamma Coal (North Wales) Gamrie Bay Sandstone Formation Gamrie Fish Bed [Obsolete] Ganey Coals Bed(s) (Coalbrookdale) Ganister Clay Coal (Northumberland And Durham) Ganister Coal Ganister Coal (Goyt Trough) Ganister Rock Gannochy Conglomerate Formation Gannochy Formation [Obsolete: use EDS, GYF, STHC, THF] Garabal Hill - Glen Fyne Pluton Garantiana Mudstone Member Garantiana Mudstone Member And Cullaidh Shale Formation (Undifferentiated) Garantiana Shale Member [Obsolete: use GASH] Garbad Sill (South Arran) Garbh-Dhail Quartz-Gabbro Ring-Intrusion Garburn Dacite Formation Garburn Formation (part) [Obsolete: use GAD] Garburn Formation [Obsolete: use GAD] Gardden Lodge Marine Band [Local Name: see CWMB] Gardden-Fawr Ash [Obsolete: use GOT] Garden Course (Vein) [Obsolete: use GNCC] Garden Course Coal (Somerset) Gardenstown Conglomerate Formation Gargunnock Hills Group [Obsolete: use GHLA] Gargunnock Hills Lava Member Gargunnock Sandstone [Obsolete: use KPF, SCK] Garheugh Formation Garheugh Formation [Duplicate: use GAR] Garibaldi Blackband Ironstone (Central Coalfield) Garibaldi Clayband Ironstone Garibaldi Coal (Central Coalfield) Garland Vein Coal (Pembrokeshire) Garlant Coal (South Wales) Garleton Hill Vent Garleton Hills Volcanic Formation Garleton Hills Volcanic Rocks [Obsolete: use GHV] Garn Bach Dacite Garn Boduan Microgranodiorite Intrusion Garn Caws Sandstone [Obsolete: use GACA] Garn Caws Sandstone Formation Garn Dolerite Garn-gofen Formation Garnant Coal (South Wales) Garnedd-Wen Beds [Obsolete: use GNWF] Garnedd-Wen Formation Garnel Burn Pelite Member Garnetiferous Group [Obsolete: use ETRK, TLEE] Garnfor Microgranite Pluton Garnkirk Limestone [Obsolete: use CAL] Garnkirk Lower Fireclay Garnkirk Main Fireclay Garrique Cornstone Formation [Obsolete: use KNW] Garrison Sill Garron Chalk [Obsolete: use GRCK] Garron Chalk Formation Garron Chalk Member [Obsolete: use GRCK] Garron Point Actinolitic Schists [Obsolete: use GART] Garron Point Group [Obsolete] Garron Point Tremolitic Flag Member Garscube Wee Coal Garsdale Limestone Formation Gartartan Conglomerate Member Garth Grit Member Garth Hill Beds Garth House Formation Garth Tuff Garth Tuff [Duplicate: use GT] Gartocharn Till Formation Garva Bridge Psammite Formation Garvagh Bridge Member Garvald Lava Member Garvald Lavas [Obsolete: use GVLA] Garvald Sill Garve Psammite Formation [Obsolete: use REP] Garvock Group [Obsolete: use ATGK] Garw Coal (South Wales) Garwallt Ash [Obsolete: use GWT] Garwallt Group [Obsolete] Garwallt Tuff Member Garwood Group Gask Intrusion Gastrioceras cancellatum Marine Band [Obsolete: use G1A1] Gastrioceras cumbriense Marine Band [Obsolete: use G1B1] Gastrioceras listeri Marine Band [Obsolete: use LSMB] Gastrioceras sigma Marine Band [Obsolete: use R2C2] Gastrioceras subcrenatum Marine Band [Obsolete: use SBMB] Gastropod Beds Gastropod Limestone Gasworks Mudstone And Cartlett Beds (Undifferentiated) Gasworks Mudstones Gasworks Sandstone Formation Gaughin Quartzite Formation Gault [Obsolete: use GLT] Gault Clay [Obsolete: use GLT] Gault Clay Formation [Obsolete: use GLT] Gault Formation Gault Formation And Upper Greensand Formation (Undifferentiated) Gavells Clough Sandstone Gavells Clough Sandstone Member [Obsolete: use GVCS] Gawber Coal (West Yorkshire) Gawthwaite Formation Gawthwaite Sandstone Member [Obsolete: use BKR] Gayle Limestone Gaythorn Limestone Gedden Coal Gees Coal (South Lancashire) Gelli Coals (South Wales) Gelli Dolerite Gelli Tuff Member Gelli-Grin Calcareous Ash Formation Gelli-Grin Calcareous Ash Series [Obsolete: use GEL] Gelli-Grin Calcareous Ashes [Obsolete: use GEL] Gellideg Coal (South Wales) Gelliswick Bay Formation [Obsolete: use FWW] Gelvin Till [Obsolete] General's Rock Sandstone Geordie Coal Geordie's Coal George's Roust Vein Georges Island Till German Bands Ironstone Gerrards Cross Gravel Formation [Obsolete: use GCGR] Gerrards Cross Gravel Member Gerrards Cross Member [Obsolete: use GCGR] Getting Rock Ironstone (South Staffordshire) Ghrudaidh Formation Ghrudaidh Formation [Duplicate: use GUD] Ghrudaidh Group [Obsolete: use GUD] Gibbet (Conglomerate) Hill Group [Obsolete: use KHS] Gibbet Hill Conglomerate [Obsolete: use GHC] Gibbet Hill Conglomerate Bed Giffnock Jewel Coal (Glasgow) Giffnock Main Coal Giffnock Sandstone Gilfach Coal (South Wales) Gill Coal (Douglas) Gillcambon Till Formation Gillers Inn Coal (Bristol Area) Gillespie Coal (Lothian) Gillfoot Beds [Obsolete: use GISD] Gillfoot Member [Obsolete: use GISD] Gillfoot Sandstone Formation [Obsolete: use GISD] Gillfoot Sandstone Member Gillis Field Microporphyroblast Gneiss Member Gilmerton Ironstone Gilmerton Limestone [Obsolete: use HUR] Gilnahirk Formation [Obsolete: use GILN] Gilnahirk Group Gilwern Clay Formation [Obsolete: use GWCL] Gilwern Clay Member Gilwern Oolite [Obsolete: use GWO] Gilwern Oolite Formation Gilwern Volcanic Formation Gin Head (Older) Vent Gin Head Vent Gin Mine Marine Band [Local Name: see AGMB] Gingham Coal (South Lancashire) Gingham Mine Coal [Obsolete: use GMCO] Ginstane Ironstone Girlsta Limestone [Obsolete: use GIRL] Girlsta Limestone Formation Girvan - Ballantrae Complex [Obsolete: use BX] Girvan Formation [Obsolete: use CLYCA] Girvan Group Girvanella Band [Obsolete: use GVB] Girvanella Nodular Band Gisburn Cotes Beds Gisburn No.1 Limestone Gisburn No.2 Limestone Gisburn No.3 Limestone Gisburn No.4 Limestone Gisburn No.5 Limestone Given's Coal (Rothbury Area) [Obsolete: use TILY] Glac An Dorchadois Member Glac An Dorchadois Member, Brutach Dearg Member And Cnoc Creaghach Member (Undifferentiated) Glacan Mor Basic Magmatic Breccia Intrusion Glacial Brick Clay Glacial Channel Deposits Glacial deposits Glacial Deposits (Irish Sea Ice) Glacial deposits, 1 Glacial Deposits, Devensian (Irish Sea Ice) Glacial Deposits, Heterogeneous Glacial Deposits, Heterogeneous, Devensian (Irish Sea Ice) Glacial Drift (Undifferentiated) [Obsolete: use GDU] Glacial Erratic (Parent Rock Unspecified) Glacial Gravel Glacial lake deposits (including penecontemporaneous fluviatile deposits) [Obsolete: use ALNE] Glacial lake deposits [Obsolete: use GLLD] Glacial meltwater deposits [Obsolete: use GFDU] Glacial Raft (Great Limestone) Glacial sand and gravel [Obsolete] Glacial sands and gravels [Obsolete: use BLSG] Glacial Silt Glacial Silts And Clays Glacial till [Obsolete: use TILL] Glacially over-ridden terrain (by readvance ice) [See descriptions for limitations of use] Glacially over-ridden terrain (by readvance ice), mostly fines [see descriptions for limitations of use] Glacially over-ridden terrain (by readvance ice), mostly gravels [see descriptions for limitations of use] Glacially over-ridden terrain (by readvance ice), mostly sand [see descriptions for limitations of use] Glacially over-ridden terrain (by readvance ice), mostly till [see descriptions for limitations of use] Glacigenic deposits Glacio-marine deposits (undifferentiated) [Obsolete: use GMDU] Glaciofluvial deltaic (and/or subaqueous fan) deposits Glaciofluvial deltaic deposits, Devensian Glaciofluvial deltaic deposits, Devensian (Irish Sea ice) Glaciofluvial deposits Glaciofluvial deposits (Irish Sea ice) Glaciofluvial deposits (undifferentiated) [Obsolete: use GFDU] Glaciofluvial deposits (undifferentiated), 1 [Obsolete: use GFDU1] Glaciofluvial deposits, 1 Glaciofluvial deposits, Anglian Glaciofluvial deposits, Devensian Glaciofluvial deposits, Devensian (Irish Sea ice) Glaciofluvial deposits, Devensian (Welsh ice) Glaciofluvial deposits, Mid Pleistocene Glaciofluvial deposits, undifferentiated (Irish Sea ice) [Obsolete: use GFDUI] Glaciofluvial deposits, undifferentiated (Middle Pleistocene) [Obsolete: use GFDMP] Glaciofluvial deposits, undifferentiated, Anglian [Obsolete: use GFDUA] Glaciofluvial deposits, undifferentiated, Devensian (Welsh ice) [Obsolete: use GFUDW] Glaciofluvial deposits, undifferentiated, Devensian [Obsolete: use GFDUD] Glaciofluvial fan deposits Glaciofluvial fan deposits 1, Devensian Glaciofluvial fan deposits 2, Devensian Glaciofluvial fan deposits, Devensian Glaciofluvial ice contact deposits Glaciofluvial ice contact deposits, Anglian Glaciofluvial ice contact deposits, Devensian Glaciofluvial ice contact deposits, Devensian (Irish Sea ice) Glaciofluvial ice contact deposits, Devensian (Welsh ice) Glaciofluvial ice contact deposits, Mid Pleistocene Glaciofluvial sand and gravel Glaciofluvial sheet and channel deposits Glaciofluvial sheet deposits Glaciofluvial sheet deposits, 1 Glaciofluvial sheet deposits, 2 Glaciofluvial sheet deposits, 3 Glaciofluvial sheet deposits, Anglian Glaciofluvial sheet deposits, Devensian Glaciofluvial sheet deposits, Devensian (Irish Sea ice) Glaciofluvial sheet deposits, Devensian (Welsh ice) Glaciofluvial sheet deposits, Devensian, 1 Glaciofluvial sheet deposits, Devensian, 2 Glaciofluvial sheet deposits, Devensian, 3 Glaciofluvial sheet deposits, Devensian, 4 Glaciofluvial sheet deposits, Mid Pleistocene Glaciofluvial Sub-Glacial Deposits Glaciofluvial sub-glacial deposits (Undifferentiated) [Obsolete: use GFSU] Glaciofluvial terrace deposits Glaciofluvial terrace deposits, 1 Glaciofluvial terrace deposits, 2 Glaciofluvial terrace deposits, 3 Glaciofluvial terrace deposits, 4 Glaciofluvial terrace deposits, Devensian Glaciofluvial terrace deposits, Mid Pleistocene Glaciolacustrine beach deposits Glaciolacustrine deltaic deposits Glaciolacustrine deltaic deposits, Devensian Glaciolacustrine deposits Glaciolacustrine deposits (age unknown) Glaciolacustrine deposits (Anglian) Glaciolacustrine deposits (Irish Sea ice) Glaciolacustrine deposits (Loch Lomond Readvance) Glaciolacustrine deposits [see descriptions for limitations of use] Glaciolacustrine deposits, 1 Glaciolacustrine deposits, Devensian Glaciolacustrine deposits, Devensian (Irish Sea ice) Glaciolacustrine deposits, Mid Pleistocene Glaciolacustrine deposits, mostly fines [see descriptions for limitations of use] Glaciolacustrine deposits, mostly gravels [see descriptions for limitations of use] Glaciolacustrine deposits, mostly sands [see descriptions for limitations of use] Glaciolacustrine deposits, undifferentiated [Obsolete: use GLLD] Glaciolacustrine pro-glacial deposits [Obsolete: use GLPG] Glaciolacustrine proglacial deposits [Obsolete: use GLLD] Glaciolacustrine sand and gravel [Obsolete: use GLLD] Glaciolacustrine silt and clay Glaciolacustrine sub-glacial deposits Glaciolacustrine subaqueous fan deposits Glaciomarine beach deposits Glaciomarine deltaic deposits Glaciomarine deposits Glaciomarine sea-bed deposits Glaciomarine subaqueous fan deposits Glaciomarine subtidal deposits Glaciotectonic thrust terrain, mostly gravels [see descriptions for limitations of use] Glaciotectonic thrust terrain, mostly sands [see descriptions for limitations of use] Glacitectonic thrust terrain [see descriptions for limitations of use] Glacitectonic thrust terrain, mostly fines [see descriptions for limitations of use] Glamaig Granite (Western Red Hills Centre: Phase 1) Glamorgan Drift [Obsolete: use GLGL] Glamorgan Formation [Obsolete: use WALES] Glamorgan Glacigenic Formation Glannoventia Formation Glanrafon Beds [Obsolete: use CAU] Glanrafon Slates [Obsolete] Glanypwll Formation [Obsolete: use DYN] Glanyrafon Formation Glanyrafon Formation (Lower Tongue) Glanyrafon Formation (Upper Tongue) Glaramara Tuff Glaramara Tuff Member [Obsolete: use GMT] Glas Bheinn Mhor Granite (Skye Eastern Red Hills Centre: Phase 1) Glas Bheinn Porphyritic Dolerite Intrusion Glas Choire Sandstone Member Glas Coire Alluvial Member [Obsolete: use GCAL] Glas Eilean Basaltic Vent Glas Eilean Lava Formation Glasallt-Fawr Formation Glascarnoch Psammite Formation Glascoed Mudstone Formation Glascoed Mudstone Formation And Ton Siltstone Formation (Undifferentiated) Glasgow Ell Coal (Central Coalfield) Glasgow Ell Index Coal (Central Coalfield) Glasgow Main Coal (Central Coalfield) Glasgow Main Under Coal (Central Coalfield) Glasgow Shale Coal (Central Coalfield) Glasgow Splint Coal (Central Coalfield) Glasgow Upper Coal (Central Coalfield) Glashvin Silt Member Glaslyn Formation Glass Coal (Midlothian) Glass Coal (Musselburgh, Midlothian) Glass Houghton Rock Glassee Coal (Fife) Glasslin Burn Conglomerate Formation [Obsolete: use DRCR] Glassmullen Plug Glauconitic and micaceous sands of the zone of Mortoniceras inflatum [Obsolete: use CANS] Glauconitic Beds [Obsolete: use PSND] Glauconitic Marl [Obsolete: use CBG] Glauconitic Marl Member Glauconitic sands (in part) and ferruginous grit [Obsolete: use USPS] Glauconitic Sands [Obsolete: use BLFM, CLLW] Glauconitic Sandstone Member Gleann Baddoch Dolomite [Obsolete: use BADL] Gleann Beag Limestone Member Gleann Beag Phyllites Gleann Beag Ribbed Limestone Gleann Beag Schist [Obsolete: use GLCS, GTSC] Gleann Beag Schist Formation Gleann Charadail Member Gleann Nan Gabhar Slate Member Gleann Oraid Formation Gleaston Dolomite Gleaston Formation [Obsolete: use AG] Gleaston Formation And Bowland Shale Formation (Undifferentiated) Gleaston Group [Obsolete: use GTGP] Glebe Farm Bed Gledstone Kennels Beds Gleilyd Coal (South Wales) Glen Achall Psammite and Semipelite Member Glen App Conglomerate [Obsolete: use GAP] Glen App Conglomerate Member Glen App Group [Obsolete: use CLG] Glen Baddoch White Limestone Glen Balleira Formation Glen Banchor Subgroup Glen Banchor Succession [Obsolete: use GLBA] Glen Banvie Formation Glen Banvie Pluton Glen Banvie Series [Obsolete: use DAGB] Glen Bay Gabbro Intrusion Glen Bay Granite Intrusion Glen Beag Schist [Obsolete: use GBSC] Glen Buck Pebbly Psammite Formation Glen Caladale Formation Glen Calcareous Member Glen Clunie Graphitic Schist Formation Glen Clunie Schist Formation [Obsolete: use GCGS] Glen Coal (West Lothian) Glen Coe Quartzite Member Glen Coe Quartzite Member [Duplicate: use DAGQ] Glen Coe Sedimentary "Series" [Obsolete: use GLVO] Glen Coe Volcanic "Series" [Obsolete: use GLVO] Glen Coe Volcanic Formation [Obsolete: use GLVO] Glen Derry Diorite Glen Dessary Intrusion [Obsolete: use GDESY] Glen Dessary Pluton Glen Dessary Syenite S1 Glen Dessary Syenite S2 Glen Dhoo Formation Glen Doe Psammite Formation Glen Doll Pluton Glen Dubh Sandstone Formation Glen Dye Silts Formation Glen Ea's Vein Glen Effock (Pelite) Group [Obsolete: use GES] Glen Effock Schist Formation Glen Effock Schists [Obsolete: use GES] Glen Egedale Slate Formation Glen Fintaig Semipelite Formation Glen Gairn Pluton Glen Garry Vein Complex Glen Girnock Calcareous Formation Glen Gloy Quartzite Formation Glen Gour Quartzite and Pelite Member Glen Kyllachy Granite [Obsolete: use GNKY] Glen Kyllachy Intrusion Glen Kyllachy Pluton Glen Lethnot (Grit) Group [Obsolete: use GLGT] Glen Lethnot Grit Formation Glen Lethnot Grits [Obsolete: use GLGT] Glen Loch Phyllite and Limestone Formation Glen Lochsie Calcareous Schist Member Glen Loin Quartzite Member Glen Loth Formation Glen Loy Complex Glen Member Glen More (Centre 1) Suite Glen Moriston Vein Complex Glen Orrin Intrusion Glen Park Volcanic Detrital Member [Obsolete: use GBV] Glen Parva Clay [Obsolete: use GPCL] Glen Parva Formation [Obsolete: use CBP] Glen Parva Member [Obsolete: use BOSW] Glen Rushen Formation Glen Sanda Facies [Strontian Pluton] Glen Sannox Conglomerate Glen Scaddle Complex [Obsolete: use GNSC] Glen Scaddle Intrusion Glen Shee Pluton Glen Shira Subgroup And Corrieyairack Subgroup (Undifferentiated) Glen Sligachan Granite (Western Red Hills Centre: Phase 2) Glen Sluan Schist [Obsolete: use DCGS] Glen Sluan Schist Formation Glen Spean Subgroup Glen Suie Limestone Member Glen Taitneach Schist Member Glen Tanar Quartzite and Mica Schist Group [Obsolete: use TPS] Glen Tanar Quartzite Member Glen Tanner Quartzite [Obsolete: use GTQ] Glen Tilt Intrusive-Complex Glen Turret Psammite And Semipelite Member Glen Urquhart Complex Glenade Sandstone Formation Glenade Sandstone Formation And Bellavalley Formation (Undifferentiated) Glenarm Chalk [Obsolete: use GAC] Glenarm Chalk Formation Glenarm Chalk Member [Obsolete: use GAC] Glenashdale Sill (South Arran) Glenbervie Porphyry [Obsolete: use LNP] Glenboig Limestone Glenboig Lower Fireclay (Central Coalfield) Glenboig Marine Band Glenboig Upper Fireclay (Central Coalfield) Glenbuchat Graphitic Schist Formation Glenbuck Group Glenbuck Group And Monks Water Group (Undifferentiated) Glenburn Volcanic Detrital Member [Obsolete: use GBV, GPVD] Glenburn Volcaniclastic Member Glencar Limestone Formation Glencartholm Volcanic Beds [Obsolete: use GV] Glencartholm Volcanic Group [Obsolete: use GV] Glencartholm Volcanic Member Glencoe Caldera-Volcano Complex Glencoe Quartzite [Obsolete: use DAGQ] Glencoe Quartzite Member [Obsolete: use DAGQ] Glencoe Ring Intrusions Glencoe Ring Intrusions, Early Fault Intrusion Glencoe Ring Intrusions, Main Fault Intrusion Glencoe Volcanic Formation Glencolumbkille Limestone Glencolumbkille Pelite Formation Glendaruel Limestone Glendearg Formation Glendian Laminated Gabbro Zone Glendouran Breccia Formation Glendowran Formation Glendun Formation Glendun Schists [Obsolete] Glenelly Formation Glenelly Formation [Duplicate 1: use GLLY] Glenelly Formation [Duplicate 2: use GLLY] Glenelly Greenbeds [Obsolete: use GLLY] Glenfarne Dolerite [Obsolete] Glenfiddich Pelite Formation Glenfinnan Division [Obsolete: use GLEN] Glenfinnan Group Glenfinnan Group and Loch Eil Group (Undifferentiated) [Obsolete: use LNES] Glenfoot Beds [Obsolete: use DYF] Glenfuir Coal (Central Coalfield) Glenga Amphibolite Member Glengawna Formation Glengawna Formation [Duplicate: use GAA] Gleniffer Lava Member Gleniffer Lavas [Obsolete: use GLLA] Glenkeel Member Glenkiln Black Shales [Obsolete: use GBS] Glenkiln Shale Formation Glenkiln Shales [Obsolete: use GBS] Glenlee Formation Glenlivet Granite Glenluce Intrusion Glenmard Mudstone Member Glenmore Member Glenn Member Glennoo Limestone Formation [Obsolete] Glenramskill Formation [Obsolete: use GRK] Glenramskill Sandstone Formation Glenshalloch Shale Formation [Obsolete: use GLSH] Glenshalloch Shales Glenshesk Tuff Formation Glenshirra Subgroup Glenshirra Succession [Obsolete: use GRGL] Glenstaghey Formation Glentane Hill Sill Glentham Formation [Obsolete: use BWL, BWC, RLD] Glenvale Formation [Obsolete: use GEF] Glenvale Sandstone Formation Glenview Limestone Member Glenwells Conglomerate Formation Glenwells Shale Formation Glenwhan Formation [Obsolete: use PPF] Glenwhargen Formation Glion Cam Formation [Obsolete: use CRMR, GLDH] Glion Cam Unit [Obsolete: use GLDH] Globe Coal (Somerset) Gloddaeth Purple Sandstone Formation Glos Oolite Series [Obsolete: use SDT] Glur-Bheinn Member Glycymeris Sandstone Glyn Dyfrdwy Group [Obsolete] Glyn Formation Glyn Gower Formation [Obsolete: use GYG] Glyn Gower Siltstones [Obsolete: use GYG] Glyn Gower Siltstones Member Glyn Grit [Obsolete: use GYN] Glyn Grit and Limestone [Obsolete: use GYN] Glynbourne Hardgrounds Glynch Valley Formation Glynde Beds Glynde Marls (One) Glynde Marls (Two) Glyngwilym Coal (South Wales) Glynllifon Trachydacite Glynn Hill Andesite [Obsolete] Glyptograptus Teretiusculus Shales [Obsolete: use LRM] Gnapiog Coal (South Wales) Goat Gills Member Goat Island Limestone Goat Scar Dacite Member Gobb Sill Goblin Combe Oolite Formation Gobnascale Pelite Member [Obsolete] Godir Rhyg Mudstone Member Godir Tudur Mudstone Member Godolphin Intrusion Godor Ash [Obsolete: use GOT] Godor Tuff Member Golan Burn Member Golan Well Pebbly Psammite Member Golden Coal (Lothian) Golden Coal (South Wales) Goldenberry Hill Sill Goleugoed Formation Golf Course Golspie Formation Golt [Obsolete: use GLT] Gomersal Rock Gonachan Glen Linear Vent-System Gonerby Member [Obsolete: use DYS] Goniatites Spiralis Beds [Obsolete] Goodall's Coal Goodig Coal (South Wales) Goodockhill Fireclay (Central Coalfield) Goodockhill Slatyband Ironstone (Central Coalfield) Goodrington Member Goodwick Volcanic Formation Goose Sandstone Member Gop Hill Limestone [Obsolete: use LNML] Gordale Limestone Member Gordon House Sand and Gravel Member Gorestown Mudstone Member Gorge Sandstone Gorllwyn Coal (South Wales) Gorllwyn Grits [Obsolete: use MOH] Gorllwyn Rider Coal (South Wales) Gorllwyn-Fach Member Gormack Lavas Member Gormire Limestone Member Gorpley Grit Gorse Hall Rock Gorse Member [Onshore] Gorse Mudstone Member Gorsley Limestone Gorteagh Tonalite Gortfinbar Conglomerate Formation Gortnagross Sandstone Member Gortnaree Sandstone Member Gortnaskea Coal (Dungannon) Gosford Bay Sill Gosforth Glacigenic Formation Gossabrough Metadiamictite Formation Gossan Gourdie Conglomerate Formation [Obsolete: use HCF] Gourdon Formation [Obsolete: use GNF, RCC] Gourdon Harbour Sandstone Member [Obsolete: use GNF] Gourdon Sandstone Formation Gourock Formation [Obsolete: use GOSA] Gourock Granite Gourock Sand Formation [Obsolete: use GOSA] Gourock Sand Member Gourock Sandstone Member Gouther Crag Breccia Member Gouther Crag Member [Obsolete: use GRCG] Govan Blackband Ironstone (Glasgow) Govan Coal Gowk Stane Volcaniclastic Member Gowk Stane Volcaniclastic Member [Duplicate: use GOWK] Gowkstane Member [Obsolete: use GOWK] Gowlaun Shale [Obsolete: use GOS] Gowlaun Shale Formation Gowlaun Shale Formation, Lackagh Sandstone Formation And Bencroy Shale Formation (Undifferentiated) Gowna Group Gowrie Member Gowrie Silt Member [Obsolete: use GWR] Gracilis Marine Band [Obsolete: use R2A1] Graianog Sandstone Graianog Sandstone Formation [Obsolete: use ALL] Graig Coal (South Wales) Graig Fawr Limestone Member Graig-Wen Sandstone Formation Graigog Coal (South Wales) Graigog Marine Band [Local Name: see MTMB] Graigog Rider Coal (South Wales) Graigola Coal (South Wales) Grain Burn Member Grain Heads Siltstone Member Grainbeck Limestone Grainsgill Greisen Grammysia Bed [Obsolete: use CWGL] Grammysia Beds [Obsolete: use CWGL, GYB] Grammysia Member Grampian Catchments Subgroup Grampian Division [Obsolete: use GRAM] Grampian Group Grampian Group (Undivided) [Obsolete: use AUGL] Grampian Group And Appin Group (Undifferentiated) Grampian Group and Dava Succession (Undifferentiated) Grampound and Probus Series [Obsolete: use GRO, PORO] Grampound Formation Grampound Grit [Obsolete: use CRNE, GRAD, RDBR, TRSA] Grampound Group [Obsolete: use GRAD] Gramscatho Beds [Obsolete: use POAN, GRO] Gramscatho Group Gramscathos Beds [Obsolete: use GRO] Granby Limestones [Obsolete: use GRBL, SMD] Granby Member Grange Crags Andesite Member Grange Formation [Obsolete: use GROS] Grange Hill Sand Formation Grange Member Grange Sandstone Grange Sandstone Member [Obsolete: use GRNS] Grange-Over-Sands Formation Grangemouth Beds [Obsolete: use GMSI] Grangemouth Formation Grangemouth Silt Member Granite [Obsolete] Grant Sand Member [Obsolete: use MANS] Grantham Formation Grantham Formation And Northampton Sand Formation (Undifferentiated) Granton Sandstones Grantown Formation Grantown Granite Pluton Grantown Pluton [Obsolete: use GRTN] Graptiliferous Mudstones [Obsolete: use SKB] Graptolite Shales Gras Isaf Coal (South Wales) Gras Uchaf Coal (South Wales) Grassby Marl Grassington Grit [Obsolete: use PENDL] Grassington Grit Formation [Obsolete: use GGF] Grauer Salzton Formation Gravel Caverns Conglomerate Member Gravel terrace [Obsolete: use KINGM, DOWNF, BACKC] Gravel Terraces [Obsolete] Gravel, sand and loam [Obsolete: use CWSG] Graveland Quartzite Member Graven Complex Gray Sandstone Group Grayber Limestone Grays Brickearth [Obsolete: use ILSI] Greasborough Coal Great Arc Sandstone Great Britain Glacigenic Supergroup [Obsolete: use GBG] Great Britain Superficial Deposits Supergroup Great Caverns Conglomerate [sic] [Obsolete: use GCC] Great Coal (Somerset) Great Coal (Titterstone Clee) Great Cockup Picrite [Obsolete] Great Conglomerate [Obsolete: use GCGL] Great Conglomerate Formation Great Course [Obsolete: use GTCC] Great Course Coal (Somerset) Great Easby Clay Formation Great Easby Member Great Estuarine Group Great Estuarine Series [Obsolete: use GEST] Great Farlow Sandstone Formation Great Glen Fault Zone Great House Agglomerate Great House Intrusion Great Ladstones Breccia Member Great Ladstones Member [Obsolete: use GTLA] Great Langdale Tuff Formation Great Limestone [Obsolete: use GL] Great Limestone Member Great Mine Limestone Great Oolite [Obsolete: use CFDO, GOG] Great Oolite Clay [Obsolete: use BWC] Great Oolite Formation [Obsolete: use CFDO] Great Oolite Group Great Oolite Limestone [Obsolete: use BWL, CFDO, GOG, IRCH, WHL] Great Oolite of Malmesbury District [Obsolete: use CSHF] Great Oolite Series [Obsolete: use GOG] Great Orme Limestone [Obsolete: use LGHL] Great Orme Limestone Formation [Obsolete: use LGHL] Great Quartzite Great Row Coal (North Staffordshire) Great Row Formation [Obsolete: use GTR] Great Row Measures [Obsolete: use GTR] Great Row Member Great Scar Limestone [Obsolete: use GSCL] Great Scar Limestone Group Great Seam Coal (Lothian) Great Strickland Limestone Great Vein [Obsolete: use GRTC] Great Wanney Crags Sandstone Great Whin Sill Great Whinscale Dacite Member Great Whinscale Member [Obsolete: use TNM] Great Whinscale Rhyolite [Obsolete: use GWD] Great White Sandstone [Obsolete: use ESA] Great Wood Gravel Member Greatmoor Hill Vent Green Ammonite Beds [Obsolete: use GAB] Green Ammonite Member Green Beds "Sensu Stricto" [Obsolete: use RTF] Green Beds [Duplicate: use GBD] Green Beds [Obsolete: use GRE] Green Beds [Obsolete: use PRC] Green Beds Formation Green Cleugh Siltstones Green Coal (South Wales) Green Croft Till Member Green Grove Sandstone Green Keuper Basement Beds [Obsolete: use RTF] Green Lane Coal Green Member Green Mudstones "Member" Green Slates Greenan Castle Ash [Obsolete: use GCP] Greenan Castle Pyroclastic Member Greenan Formation [Obsolete: use GNNS] Greenan Sandstone Formation Greenbeds [Obsolete: use LKV] Greencastle Green Beds Greencliff Beds [Obsolete: use BF] Greengairs Lime Coal (Airdrie; Central Coalfield) Greengairs Smithy Coal (Central Coalfield) Greengate Well Limestone Greenhall Limestone [Obsolete: use DWL] Greenheugh Sandstone Formation Greenhill Andesite Member [Obsolete] Greenhill Felsic Member Greenhow Limestone Greenmoor Rock Greenoakhill Sand and Gravel Member Greensand and Sandstone [Obsolete: use SYS] Greensand Formation Greensand Group [Obsolete: use UGS] Greensand of Morvern [Obsolete: use MOGR] Greensands [Obsolete: use HBG] Greenscoe Tuff Formation Greenses Coal (Northumberland) Greenses Limestone [Obsolete: use OXL] Greenshiels Intrusion Greenside Volcaniclastic Member Greenstone And Spilite Volcanics Greenstone And Spilite Volcanics [Obsolete] Greenstone Conglomerate Greenstone Conglomerate [Obsolete] Greenway Tuff Member Greenyards Coal Greeto Lava Member Greeto Lavas [Obsolete: use GRLA] Gregynog Mudstone Member Grendon Member Grendon Member And Ecton Member (Undifferentiated) Grennan Point Formation Of The Rhins Of Galloway Grenoside Rock Grenoside Sandstone Grenoside Sandstone Coal Grenzanhydrit Formation Greta Grit Greta Grits Formation [Obsolete: use GRGT] Gretna Till Formation Grey and Tea Green Marls and Sully Beds [Obsolete: use BAN] Grey Beds Grey Chalk Member [Obsolete: use ZZCH] Grey Chalk Subgroup Grey Downtonian [Obsolete] Grey Friar Tuff Member Grey Grits [Obsolete: use GRG] Grey Grits Formation Grey Limestone Series [Obsolete: use SCR] Grey Limestone, Upper [Obsolete: use CFML] Grey Marl Member Grey Marls [Obsolete: use BAN] Grey marls and yellow sandstones with chert [Obsolete: use ISMS] Grey Measures of Yorkshire and Nottingham [Obsolete: use PLCM, PMCM, PSLCM, PSMCM] Grey Salt Clay Member [Obsolete: use ZECH3] Grey Sands [Obsolete: use GSDT] Grey Sandstone Facies [Obsolete: use DASA] Grey Sandstone Member Grey Sandstone Series [Obsolete: use GSA] Grey Shale Grey Shale Member Grey Shale Series [Obsolete: use GREY] Grey Shales [Obsolete: use GREY] Grey Shales Formation [Obsolete: use GREY] Grey Slate [Obsolete: use TVS] Grey's Crag Coal (Northumberland) Greylake Member Greys Crags Greys Limestones Member Greystoke Till Formation Greystone [Obsolete: use TAL, TBF] Greystone Formation [Obsolete: use BREN] Greystone or Passage Beds [Obsolete: use YED] Greywacke Conglomerate [Obsolete: use GRWC] Greywacke Conglomerate Formation Gribin Mudstones Gribun Chalk [Obsolete: use GRIB] Gribun Chalk Formation Grid Sandstone Member Grieston Formation Grieston Slates [Obsolete: use GSN] Griffe Grange Bed [Obsolete: use WDL] Grigadale Microgranite Intrusion Grimley Andesite Grimley-Type Porphyroid [Obsolete: use GYA] Grindslow Shales [Obsolete: use GDS] Grindslow Siltstones Grindstone Limestone Grindstone Post Member Grindstone Sandstone Grindstone Sill Grinllwm Grits Grinllwm Slates Grinshill Sandstone [Obsolete: use HEY] Grinstead Clay [Obsolete: use GRC] Grinstead Clay Formation [Obsolete: use GRC] Grinstead Clay Member Gristhorpe Member Grit Sill Grits Group [Obsolete: use WHG] Grits in Skiddaw Slates [Obsolete: use SKG, LWF] Gronant Group [Obsolete: use CLWYD, CRAV] Grorudite Swarm [Obsolete: use PARH] Group XVI [Obsolete: use CAW] Grouping of Harford Sands [Obsolete: use HFD] Grove Coal (South Staffordshire) Grovesend Beds [Obsolete: use GDB] Grovesend Formation Grovesend Member [Obsolete: use GDB] Grudaidh Formation Grugie Pluton Grumack Hill Quartzite Member Gruney And Fethaland Formation Gruting Greenschist Formation Gryphaea Bed [Obsolete: use GRGR] Gryphaea Grit [Obsolete: use GRGR] Gryphite Grit [Obsolete: use GRGR] Gryphite Grit and Buckmani Grit [Obsolete: use GRGR] Gryphite Grit Member Gualdswell Lava Member Gubaveeny Shale Member Gubbin And Balls Ironstone (South Staffordshire) Gubbin Ironstone (South Staffordshire) Gubbin Ironstone [Also Known As Grains Or Chance] Gubeon Coal (Northumberland And Durham) Gubeon Marine Band [Local Name: see AMMB] Guirdil Arkose [Obsolete: use TCAS, TCSM] Guirdil Member Guiseley Grit Gull Rock Shale Gullane Formation Gully Member Gully Oolite Formation Gully Redbed Formation Gun Gardens Main Marl Gun Gardens Marls (One) Gun Gardens Marls (Three) Gun Gardens Marls (Two) Gunnerton Fell Limestone Gunnscroft Limestone Gunnscroft Limestone Bed [Obsolete: use ARYL] Gunthorpe Formation [Obsolete: use GUN] Gunthorpe Member Gupton Formation Gur Coal (Coalbrookdale) Gurnard Member Gurrington Slate Formation Gutter Coal (Titterstone Clee) Gutterfoot Sand Member Gutterford Burn Flagstones Gwaelo Formation Gwaelo Sequence [Obsolete: use GWA] Gwaelo Subsequence [Obsolete: use GWA] Gwaenysgor Limestone Formation Gwalchmai Formation Gwastaden Group Gwastadnant Grits Gwddel Felsitic Formation Gwendraeth Coal (South Wales) Gwent Levels Formation Gwern Feifod Lava Member Gwern Feifod Tuff Member Gwern Gof Tuff Gwern Gof Tuff Formation Gwern-Feifod Group [Obsolete] Gwersyllt Little Coal (North Wales) Gwespyr Sandstone Gwespyr Sandstone Formation [Obsolete: use GS] Gwna Group Gwna Melange Formation [Duplicate: use GWNM] Gwna Melange Formation [Obsolete: use NGW] Gwrych Limestone Gwscwm Coal (South Wales) Gwscwm Rider Coal (South Wales) Gwyddel Felsitic Formation [Obsolete] Gwynedd Supergroup Gwynllwg Formation [Obsolete: use WLLEV] Gyfenni Wood Shale Formation Gyffin Shales [Obsolete: use COMU] Gypseous Shales Gyrn Ddu Microgranodiorite Pluton Gyrn Goch Granite Intrusion H Seam H1 Habberley Shale Formation Hackley Limestone Member Hackness Rock Member Hackney Gravel Formation [Obsolete: use HAGR] Hackney Gravel Member Haddenham Formation Haddington's Vein Haddiscoe Sand and Gravel Member Haddiscoe Sands and Gravels [Obsolete: use HGV] Haddo House Pluton Haddock Sandstone Unit Hadley Formation [Obsolete: use ETM] Haffield Breccia Formation Haffield Conglomerate [Obsolete: use HBR] Hafod Coal (South Wales) Hafod Fawr Formation Hafod Heulog Marine Band [Local Name: see HTMB] Hafod Ifan Limestone Member Hafod Member Hafotty Formation Hafotty Group [Obsolete: use HF] Haggard Coal (Milford, South Wales) Haggard Vein [Obsolete: use HAGC] Haggis Grit and Conglomerate [Obsolete: use CKRI] Hagley Ash [Obsolete: use HGY] Hagley Shale Formation Hagley Shales [Obsolete: use HGSH] Hagley Volcanic Formation Hagley Volcanic Formation [Duplicate: use HGY] Hagley Volcanic Formation, Hagley Shale Formation And Whittery Volcanic Formation (Undifferentiated) Hagley Volcanic Group [Obsolete: use HGY] Hagshaw Group Haig Fras Granite Haigh Moor Coal (West Yorkshire) Haigh Moor Rock Haigh Yard Coal (South Lancashire) Hailes Lava Member Hailes Member [Obsolete: use HSLA] Hailes Sandstone Hairmyres Limestone Hairy Craig Sill Haisborough Group Haist Pebbly Sandstone Member Haist Sandstone Member [Obsolete: use HAT] Hake Mudstone Member Halberton Breccia Formation Haldon Gravel [Obsolete: use HGR] Haldon Gravel Formation Haldon Gravels [Obsolete: use BHGR] Haldon Sands [Obsolete: use UGSD, ACGR, CUSC, THSS, WLSS] Haldon Sands Formation [Obsolete: use ACGR, CUSC, UGSD, WLSS] Hale Common Gravel Member Hales Clay [Obsolete: use HAC] Hales Clay Member [Obsolete: use ORW, UPR] Halesowen Beds [Obsolete: use HA] Halesowen Formation Halesowen Formation [Duplicate: use HA] Halesowen Group [Obsolete: use HA] Halesowen Sandstone Series [Obsolete: use HA] Half Yard Coal Half Yard Coal (Cheadle) Half Yard Coal (Cumbria) Half Yard Coal (Hanwood) Half Yard Coal (North Wales) Half Yard Coal (South Lanacashire) Half Yard Coal (Warwickshire) Half Yard Coal (Wyre Forest) Half Yard Limestone Halfway Farm Formation Halibut Carbonate Formation Halkyn Formation [Obsolete: use BSG, CFS, GS, PECH] Hall Carleton Formation Hall Gill Sandstone Hall Hill Sandstones Hallaig Sandstone [Obsolete: use ADS, HLGS] Hallaig Sandstone Member Hallane Formation Halligill Limestone Halton Shales Halwell Cottage Beds [Obsolete: use TVY] Ham Green Gravel Member Ham Green Member [Obsolete: use BAV3] Ham Hill Limestone Member Ham Hill Stone [Obsolete: use HHS] Ham Mudstone Ham-Scarfskerry Flagstone Formation Ham-Scarfskerry Flagstone Subgroup [Obsolete: use HSK] Hamble Formation Hambleton Mudstone Formation [Obsolete: use HAM] Hambleton Mudstone Member Hambleton Mudstones [Obsolete: use HAM] Hambleton Oolite Member Hambleton Oolites [Obsolete: use HAO] Hamilton Sandstone Hampen Formation Hampen Marly Beds [Obsolete: use HMB] Hampen Marly Formation [Obsolete: use HMB] Hampole Beds Hampshire Avon Formation Hampton Member Hams Coal (North Staffordshire) Hamstead Formation [Obsolete: use EN] Hamstead Marshall Gravel Member Hamstead Member Hanborough (Gravel) Formation [Obsolete: use HAN] Hanborough Gravel Member Hanborough Member [Obsolete: use HAN] Hanborough Terrace Deposits [Obsolete: use HAN] Hanchurch Sandstone [Obsolete: use HANS] Hanchurch Sandstone Bed Hand Coal (Northumberland) Handborough Terrace Deposits [Obsolete: use HAN] Handsworth Rock Hanged Man Bed Hanged Man Member (Former Formation) [Obsolete: use HGF] Hanging Knotts Tuff Member Hanging Rocks Conglomerate Member [Obsolete: use CBHR] Hanging Rocks Formation Hanging Stone Tuff Hanging Stone Tuff Member [Obsolete: use HNG] Hangman Grits [Obsolete: use HASA, HGMS] Hangman Sandstone Formation Hangman Sandstone Group [Obsolete: use HASA] Hannaborough Intrusion Hanworth Till Member Happendon Coal (Douglas) Happendon Limestones [Obsolete: use PGP] Happisburgh Clays [Obsolete: use IFLS] Happisburgh Diamicton [Obsolete: use HPTI] Happisburgh Glacigenic Formation Happisburgh Glacigenic Formation And Lowestoft Formation (Undifferentiated) Happisburgh Sand Member Happisburgh Sands [Obsolete: use HPSA] Happisburgh Till Member Harbour Cove Slate Formation Harbour Cove Slates [Obsolete: use HCSL] Harby Head Hard Bed Band Coal (South Derbyshire) Hard Bed Band Coal (West And South Yorkshire) Hard Bed Band Marine Band [Local Name: see MFMB] Hard Bed Band Rock (West Yorkshire) Hard Bed Coal (West And South Yorkshire) Hard Bed Marine Band [Local Name: see LSMB] Hard Coal (Bristol Area) Hard Coal (South Lancashire) Hard Coal (South Wales) Hard Mine Coal [Obsolete: use HARD] Hard Splint Coal Hard Vein Coal (South Wales) Harden Beds Hardmine Coal (North Staffordshire) Hardraw Scar Limestone [Obsolete: use HSCL] Hardrow Scar Limestone Hardy Coal (Northumberland) Harehill Pluton Harelaw Lava Member Harelaw Lavas [Obsolete: use HWLA] Harelawhill Limestone [Duplicate: use HLLS] Harelawhill Limestone [Obsolete: use EWL] Hareshaw Conglomerate Formation Hareshaw Head Coal Harestones Felsite [Obsolete: use CFCOH] Harestones Rhyolite Harestones Rhyolite (in Carrock Fell Complex) [Obsolete: use CFCOH] Harford Member Harford Sands Harford Sands Member [Obsolete: use HFD] Hargate End Limestone Harlaw Limestone Harlech Beds (Undifferentiated) [Obsolete] Harlech Grits Group Harlequin Formation [Obsolete: use GUN] Harley Coal (South Yorkshire) Harlock Formation [Obsolete: use BKR] Harlock Grits [Obsolete: use HRG] Harlow Hill Sandstone Harnage Shale Formation Harnage Shales [Obsolete: use HASH] Harnlo Coal (South Wales) Harptree Beds Harra Ebb Sandstone Formation Harrath Tuff Member Harrath Tuffs and Lavas [Obsolete: use BWT, HHT] Harrington Four Foot Coal (Cumbria) Harris Bay Member (Western Intrusion, Rum Layered Suite) Harris Bay Member (Western Intrusion, Rum Layered Suite) [Duplicate: use RLW1] Harris Member Harrison Stickle Breccia Member Harrison Stickle Member [Obsolete: use HTK] Harrock Hill Grit Harrogate Roadstone Harrogate Till Formation Harry Stoke Marine Band [Local Name: see VDMB] Hartfell Pebbly Grit Hartfell Shales Hartfield Breccia Formation [Obsolete: use HTFD] Hartfield Formation Harthwaite Formation [Obsolete: use HAWT] Harthwaite Tuff Formation Hartland Quay Shale Hartlepool and Roker Dolomite [Obsolete: use ROD] Hartlepool Anhydrite [Obsolete: use HPA] Hartlepool Anhydrite Formation Hartley Coal Hartley Coal (Dailly) Hartley Coal (Stirling, Clackmannan) Hartley Hill Formation [Obsolete: use ASLS] Hartshill Formation [Obsolete: use CQ] Hartshill Sandstone Formation Hartwell Clay Harvey Coal (Northumberland and Durham) Harvey Marine Band [Local Term: see VDMB] Harwich Formation Harwich Formation And Lambeth Group (Undifferentiated) Harwich Member [Obsolete: use WRAB] Harwich Stone Band Harwood Band Harwood Beds Hascosay Slide [Obsolete: use HSZM] Hascosay Slide Zone Mylonites Haslingden Flags Hastings Beds (Subgroup) [Obsolete] Hastings Beds [Obsolete: use HAS] Hastings Sands [Obsolete: use HAS] Hathern Anhydrite Formation Hathern Anhydrite Series [Obsolete: use HAA] Hathern Gravel Member Hatherwood Limestone Member Hatton Conglomerate Formation [Obsolete: use HCF] Hatton Conglomerate Member Hatton Till [Obsolete: use HATT] Hatton Till Formation Hauchielin Coal (Tranent - Haddington) Haugh Wood Formation Haughmond Conglomerate [Obsolete: use YWCH] Haughmond Conglomerate Member Haughrigg Coal Haughton Limestone Haughton Marine Band Haunchwood Bed [Obsolete] Hauptanhydrit Formation Hauptdolomit Formation Hauxley Brockwell Coal Haven Brow Beds Haverford Mudstone Formation Haverigg Haws Anhydrite Member Haw Bank Limestone [Obsolete: use CHL] Haw Hill Borehole Formation Hawes Limestone Haweswater Complex [Obsolete: use HAWS] Haweswater Ignimbrite Group [Obsolete: use WLT] Haweswater Intrusions Hawick Group Hawick Group And Riccarton Group (Undifferentiated) Hawick Rocks [Obsolete: use ETRK, EKM, GDE, HWK] Hawk's Nest Coal [Obsolete: use HANC] Hawkcraig Point Sill Hawkesbury Clay Member Hawks Brow Flint Hawks Nest Coal Hawksmoor Formation [Obsolete: use CHES] Hawthorn Limestone Member [Obsolete: use HUR] Hayburn Beds [Obsolete: use SWK] Hayburn Formation [Obsolete: use SWK] Hayes Sandstone Formation Hayle Sandstones [Obsolete: use GRO] Haymoor Bottom Clay Member Hayne Beech Beds [Obsolete: use HYBC] Hayne Beech Formation [Obsolete: use HYBC] Hayne Beech Member Haystacks Andesite [Obsolete: use HAYS] Haystacks Andesite Member Haystacks Member [Obsolete: use HAYS] Hayton Anhydrite Haywood Under Coal Hazel Greave Grit [Obsolete] Hazel Greave Grit And Guiseley Grit (Undifferentiated) Hazelbury Bryan Formation Hazelbury Bryan Formation And Kingston Formation (Undifferentiated) Hazon Coal (Rothbury Area) Hazon Lee Coal (Northumberland) Head Head and Talus (Undifferentiated) Head brickearth [Obsolete: use FAEOL] Head brickearth, older [Obsolete: use FAEOL] Head brickearth, younger [Obsolete: use FAEOL] Head gravel [Obsolete: use HEAD] Head, 1 Head, 2 Head, 3 Headley Formation [Obsolete: use HDY] Headley Heath Member Headon Beds [Obsolete: use HE] Headon Beds and Osborne Beds (Undifferentiated) [Obsolete: use HEHI] Headon Formation Headon Hill Formation Headon Warren Sand And Gravel Member Heads Of Ayr Vent Headsmuir Sandstone Heales Lock Gravel Member Hearson Hill Mudstone Heath Hayes Coal (South Staffordshire) Heath Member Heathen Coal Heathen Coal (South Staffordshire) Heather Formation Heathery Heugh Sandstone Heavitree and Alphington Breccias [Obsolete: use AHBR] Heavitree Breccia [Obsolete: use HVBR] Heavitree Breccia Formation Heavitree Breccia Member [Obsolete: use HVBR] Heavitree Conglomerate [Obsolete: use HVBR] Heavy Industrial Development Hebblethwaite Member Hebburn Dyke Hebburn Fell Coal (Northumberland And Durham) Hebden Formation Hebridean Province Hebrides Formation Hebrides Margin Group Hebrides Subvolcanic Suite Heimdal Sandstone Member Helen's Bay Formation Hell Hole Coal (South Lancashire) Hell Hole Mine Coal [Obsolete: use HHOC] Hell's Mouth Formation Hell's Mouth Grits [Obsolete: use HMG] Hells Hole Dyke Hellvellyn Formation [Obsolete: use HLV] Helm Member Helman Head Beds [Obsolete: use CLYTH] Helmeth Grit [Obsolete: use HLG] Helmeth Grit Member Helmeth Grits [Obsolete: use HLG] Helmsdale Boulder Beds equivalent [Obsolete: use BNSA] Helmsdale Boulder Beds Formation Helmsdale Granite Helmsdale Granite, Phase 1 Helmsdale Granite, Phase 2 Helmshore Grit Helpet Edge Rock Helsby Sandstone Formation Helsby Sandstone Formation [Duplicate: use HEY] Helvellyn Tuff Formation Helwellyn Tuff Member [Obsolete: use HLV] Hematitic Tuffs Hemingbrough Glacial Lake Formation [Obsolete: use HEM] Hemingbrough Glaciolacustrine Formation Hemington Gravel Member Hemington Terrace Deposits [Obsolete: use HETD] Hemlaw Vent And Plug Hempriggs Sand Member Hemsworth Division [Obsolete: use HEMS] Hemsworth Member Hen Coal (Bristol Area) Hen-dy-capel Ironstone Member Henblas Facies [In Ystrad Meurig Grits Formation] Hendre Shales Formation Hendre Shales Formation And Mydrim Shales Formation (Undifferentiated) Hendy Farm Shales Henfryn Formation Hengistbury Beds [Obsolete] Henllan Ash Member Hennel Cleugh Sandstone Henry's Bridge Member Hens Sike Coal Henshaw Formation Henshaw Siltstones Hensingham Grit Hensingham Group [Obsolete: use SMGP] Hensingham Group And Coal Measures Group (Undifferentiated) Hereford Formation Hereford Till Member Herford End-Moraine [Obsolete: use HDTI] Herma Ness Gneiss Member Herma Ness Marble Member Hermaness Ultramafic Zone Hermod Sandstone Member Herne Bay Member [Obsolete: use OH] Heron Group Herring Coal (South Staffordshire) Herring Formation Heterorthis alternata limestone [Obsolete: use ALT] Hetton Beck Limestone Member Hevda Phyllite Formation Hevdadale Intrusion Heversham House Sandstone [Obsolete: use SLVS] Heversham House Sandstone Member [Obsolete: use SLVS] Hewett Sandstone Heyden Rock Heysham Harbour Sandstone Heysham Harbour Sandstone Formation [Obsolete: use HEH] Hibaldstow Beds [Obsolete: use ULL] Hibaldstow Limestone [Obsolete: use ULL] Hibaldstow Limestone Member [Obsolete: use HIL] Hibaldstow Limestones [Obsolete: use HIL] Hibaldstow Limestones Member [Obsolete: use HIL, ULL] Hibaldstow Oolite [Obsolete: use HIL] Hibernian Greensand [Obsolete: use HBG] Hibernian Greensand Formation [Obsolete: use HBG] Hibernian Greensands (part) [Obsolete: use HBG] Hibernian Greensands Formation And Ulster White Limestone Formation (Undifferentiated) Hibernian Greensands Group Hidra Formation High Camlarg Coal (Dalmellington, South Ayrshire) High Coal (Bristol Area) High Corby Knowe Sill High Cross Member [Obsolete: use CDW] High Gamma-Ray Sands Unit [Obsolete: use CYSA] High Grains Sandstone High Grit Sandstone High Grit Sill High Haume Limestone [Obsolete: use IRE] High Haume Mudstone [Obsolete: use KKB] High Haume Rhyolite [Obsolete: use HHR] High Haume Tuff Formation High Haume Volcanic Formation [Obsolete: use HHR] High Hazles And Brinsley Coal (Vale Of Belvoir) High Hazles Coal (South Yorkshire, Nottingham And Derby) High Ireby Formation [Obsolete: use EVG] High Ireby Group [Obsolete: use HIF] High Lodge Clayey Silts and High Lodge Sands [Obsolete: use HLSI] High Lodge Gravel Member High Lodge Member [Obsolete: use HLSI] High Lodge Silt Member High Main + Metal Coal (Northumberland) High Main Coal (Leicestershire) High Main Coal (Northumberland and Durham) High Main Coal (Nottingham and Derby) High Main Coal (Warwickshire) High Main Marine Band [Local Name: see MTMB] High Main Marine Band Coal (Northumberland) High Main Marine Band Seam High Main Post Member High Mains Formation High Mains Sandstone [Obsolete: use HMS] High Moor Sandstone High Moor Sandstone And Doubler Stones Sandstone (Undifferentiated) High Tor Limestone Formation High Tor Limestone Formation, Cefnyrehndy Oolite Member And Hunts Bay Oolite Subgroup (Undifferentiated) High Wood Marine Beds High-Level Marine Shell Bed [Obsolete: use BECL] Higher Bent Coal (South Lancashire) Higher Bent Mine Coal [Obsolete: use HBTC] Higher Chamber Coal (South Lancashire) Higher Chamber Mine Coal [Obsolete: use HCHC] Higher Comberoy Formation Higher Florida Coal (South Lancashire) Higher gravel train [Obsolete: use BDGR] Higher Pigeon House Coal (South Lancashire) Higher Ravenhead Coal (South Lancashire) Higher Two Coal (South Lancashire) Higher Two Mines Coal [Obsolete: use HTCO] Highest or Barnwell Terrace (Penning and Jukes-Browne, 1881) [Obsolete: use BABY] Highfield Farm Limestone [Obsolete: use HFFL] Highfield Farm Limestones Bed Highfield Limestone Highgate Coal (South Yorkshire) Highgreen Coal Highland Border Complex Highland Border Grits [Obsolete: use BMSA] Highland Border Ophiolite-Complex Highland Border Sandstones [Obsolete: use BMSA] Highland Border Series [Obsolete: use HBX] Highland Boundary Complex [Obsolete: use HBX] Highlands Felsic Minor Intrusion Cluster Highlands Mafic Minor Intrusion Cluster Highlands Older Minor Intrusion Subsuite Highlands Older Suite Highlands Plugs And Vents Highlands Younger Minor Intrusion Subsuite Highlands Younger Suite Highley Beds [Obsolete: use HYG] Highley Formation [Obsolete: use HA] Highley Group [Obsolete: use HYG] Highley-Brooch Coal (Wyre Forest) Highstone Coal Highworth Clay Member Highworth Formation [Obsolete: use BYSA] Highworth Grit Member Highworth Limestone Member Hildasay Sandstone Member Hildesay Granite Hill Farm Formation Hill House Flags [Obsolete: use HHF] Hill House Flags Member Hill House Grits [Obsolete: use HHGT] Hill House Grits Member Hill House Shales [Obsolete: use HHSH] Hill House Shales Member Hill Of Blairs Pluton Hill Of Fare Intrusion Hill Of Foudland Pelite Member Hill peat Hillbeck Limestone [Obsolete: use AFL] Hillend Algal Band Hillhead Group [Obsolete: use HSA] Hillhead Red Bed Subgroup [Obsolete: use HSA] Hillhead Sandstone Formation Hillhead Sandstones, Flagstones and Shales [Obsolete: use HSA] Hillhouse Limestone Hillhouse Sill Hillmorton Sand Member Hillside Dolomitic Formation [Obsolete: use LAL] Hillswick Formation Hilton Gravel [Obsolete: use ETSG] Hilton Gravels [Obsolete: use EGSG] Hilton Plant Beds Hilton Terrace Deposits [Obsolete: use EMSG] Hind Sandstone Hind Sandstone Member [Obsolete: use HIS] Hinton St Mary Clay Member Hirnant Beds Hirnant Limestone [Obsolete: use HIR] Hirnant Limestone Member Hirst Limestone [Obsolete: use CAL] Hirta Cone-Sheet-Swarm Hirundo Formation Histon Road Member Hiw "Series" Hjaltland Glacigenic Group Hoar Edge Grit Formation Hob's House Coral Band Hobberlaw Limestone Hobbs Point Palynological Association Hobbyhorse Bay Limestone Formation Hod Formation [Norwegian Classification - reserved for possible future use] Hodder Mudstone Formation Hodderense Limestone Formation Hodders Combe Beds [Obsolete] Hodge Coal (Northumberland And Durham) Hodsonites magistrorum Marine Band Hodsonites magistrorum Marine Band [Duplicate: use R1A1] Hoes Farm Member Hogg Fence Ironstones Hogg Limestone Hoghill Gravel Bed Hoghill Gravel Formation [Obsolete: use HGGR] Holborn Sandstone Formation [Obsolete: use HOSM] Holborn Sandstone Member Holbrook Coal Holbrook Marine Band Holcombe Brook Coal (South Lancashire) Holcombe Brook Grit Holcombe Brook Grit and Huddersfield White Rock (Undifferentiated) Holderness Formation Holdgate Sandstone Hole Coal (Bristol Area) Holehead Lava Member Holehead Lavas [Obsolete: use HHLA] Holehouse Gill Formation [Obsolete: use HLH] Holehouse Gill Mudstone Formation Holers Coal (South Staffordshire) Holey Limestone Holkham Till Holkham Till Member Hollandbush Smithy Coal Hollandbush Splint Coal Hollin Coal (North Wales) Hollin Rock Holling Member [Obsolete: use TPSF] Hollington End Beds [Obsolete] Hollington Formation [Obsolete: use HEY] Hollowbrook Formation [Obsolete: use HOB] Hollowbrook Member Holly Bush Member Holly Lane Coal (North Staffordshire) Hollybush Coal (Bristol Area) Hollybush Coal (Glasgow - Greenock) Hollybush Limestone Hollybush Quartzite and Conglomerate [Obsolete: use MCQ] Hollybush Sandstone Hollybush Sandstone Formation Hollygate Lane Skerries [Obsolete: use HLY] Hollygate Sandstone Member [Obsolete: use AS] Hollygate Skerries [Obsolete: use HLY] Hollygate Skerry [Obsolete: use AS, HLY] Hollygate Skerry Member [Obsolete: use HLY] Holm Burn Flagstone Holm Farm Limestone [Obsolete: use HMFL] Holm Farm Limestones Bed Holme High Limestone Group Holme Lacy Member Holme Pierrepont Sand and Gravel [Obsolete: use HPSG] Holme Pierrepont Sand and Gravel Member Holme Wood Coal Holme Wood Marine Band Holmehead Limestone Holmeside Clay Member Holmingham Beds [Obsolete: use CKF] Holmrook Till Member Holocene Deposits (Undifferentiated) Holsworthy Group Holt Farm Group Holt Heath Member [Obsolete: use HHSG] Holt Heath Sand and Gravel [Obsolete: use HHSG] Holt Heath Sand and Gravel Member Holt Heath Terrace Deposits [Obsolete: use HHTD] Holt Town Sandstone [Obsolete: use HTS] Holt Town Sandstone Bed Holwell Limestone Holwill's Conglomerate Holy Island Group Holy Island Sill (South Arran) Holyhead Formation Holyhead Quartzite Holyhead Quartzite Formation [Obsolete: use NHQ] Holywell Marls (Five) Holywell Marls (Four) Holywell Marls (One) Holywell Marls (Six) Holywell Marls (Three) Holywell Marls (Two) Holywell Nodular Chalk Formation Holywell Nodular Chalk Formation and New Pit Chalk Formation (undifferentiated) Holywell Nodular Chalk Formation, New Pit Chalk Formation, Lewes Nodular Chalk Formation And Seaford Chalk Formation (Undifferentiated) Holywell Nodular Chalk Formation, New Pit Chalk Formation, Lewes Nodular Chalk Formation, Seaford Chalk Formation And Newhaven Chalk Formation (Undifferentiated) Holywell Nodular Chalk Formation, New Pit Chalk Formation, Lewes Nodular Chalk Formation, Seaford Chalk Formation, Newhaven Chalk Formation And Culver Chalk Formation (Undifferentiated) Holywell Nodular Chalk Member [Obsolete: use HCK] Holywell Nodular Chalk, New Pit Chalk, Lewes Nodular Chalk , Seaford Chalk, Newhaven Chalk, Culver Chalk And Portsdown Chalk Formations (Undifferentiated) Holywell Shale Formation [Obsolete: use BSG] Holywell Shales [Obsolete: use BSG, HSH] Holywood Group Home Farm Member Homoceras beyrichianum Marine Band Homoceras beyrichianum Marine Band [Duplicate: use H1B1] Homoceras henkei Marine Band [Obsolete: use HKMB] Homoceras magistrorum Marine Band [Obsolete: use R1A1] Homoceras subglobosum Marine Band [Obsolete: use ISMB] Homoceras undulatum Marine Band Homoceras undulatum Marine Band [Duplicate: use H2B1] Homoceratoides prereticulatus Marine Band Homoceratoides prereticulatus Marine Band [Duplicate: use H2C2] Honeycombed Sandstone Member Honley Marine Band Hoo Cannel Coal (North Staffordshire) Hook Norton Limestone [Obsolete] Hooken Nodular Limestone Member [Obsolete: use BRHD] Hookes Coal (Milford, South Wales) Hookes Vein [Obsolete: use HOKC] Hopcroft's Holt Formation Hope Batch Dacites [Duplicate: use HBD] Hope Batch Dacites [Obsolete] Hope Beck Formation Hope Beck Slates [Obsolete: use HBE] Hope Gap Beds Hope Gap Flints Hope Gap Hardgrounds Hope Gap Marls (One) Hope Gap Marls (Two) Hope Group Hope Shale Formation Hope Shale Formation And Weston Flags Formation (Undifferentiated) Hope Shales [Obsolete: use HOSH] Hope's Nose Beds Hopedale Limestone Formation Hopedale Limestones [Obsolete: use HP] Hopedale Limestones Formation (Knoll-Reef) Hopeful Vein Hopeman Sandstone Formation Hopeman-Cummingstown Sandstone Hopes Coal Hopetoun Member Hopkins Shell Bed Hopton Agglomerate Hoptonwood Limestone [Obsolete: use BLL] Hopwas Breccia Formation Horbury Rock Horda Formation Horden Member Horden Till Formation Horn Coal Horner's Vein Horrace Flags [Obsolete: use HOF] Horrace Formation [Obsolete: use WRE] Horrisdale Waterfalls Member Horrocksford Beds Horse Roads Sandstone Horsehay Sand Formation Horseshoe Vent Horsham Stone [Obsolete: use HST] Horsham Stone Member Horton Flags [Obsolete: use HNF] Horton Limestone [Duplicate: use HTNL] Horton Limestone [Obsolete: use FWL, GAL] Horton Neptunian Dyke Horton Siltstone Formation Hosie Fireclay Hosie Limestones Hosie Sandstone Hospital Coal (Derby) Hot Lens A Member [Obsolete: use CYSA] Hot Lens B Member [Obsolete: use CYSA] Hot Sand Member [Obsolete: use CHNT] Hotwells Group [Obsolete: use PEMB] Hotwells Limestone Formation [Obsolete: use OHL] Hougham Mudstones [Obsolete] Houghrigg Coal Houghton Common Rock Houghton Rock [Obsolete: use GH] Houghton Thin Coal (South And West Yorkshire) House Coal Househill Clayband Ironstones Housetter Granite Houston Coal (West Lothian) Houston Marls Houston Oil Shale How Hill Member How Man Till Member Howe Member [Obsolete: use HOBGR] Howe Of Byth Gravel Formation Hoy Lavas [Obsolete: use HOV] Hoy Sandstone [Obsolete: use EDY] Hoy Sandstone Formation Hoy Sandstone Group [Obsolete: use HOY, OYS] Hoy Sandstones [Obsolete: use HOY] Hoy Volcanic Formation [Obsolete: use HOV] Hoy Volcanic Member Huckster Conglomerate [Obsolete: use HCG] Huckster Conglomerate Member Huddersfield White Rock Hudleston Formation Hudsonoceras proteum Marine Band Hudsonoceras proteum Marine Band [Duplicate: use H2A1] Hudsonoceras proteus Marine Band [Obsolete: use H2A1] Hugh's Laithes Pike Ignimbrite Group [Obsolete: use WLT] Hughes Beds [Obsolete: use H] Hughes Coal (South Wales) Hughes Formation [Obsolete: use H] Hughes Member Hughes Member [Duplicate: use H] Hughes Member, Swansea Member And Grovesend Formation (Undifferentiated) Hughley Shales [Obsolete: use PUS] Hugin Formation Hulme Member Humber Group Humber Sand and Gravel Formation Humbie Shell Bed Humby Vein Hummocky (Moundy) Glacial Deposits Hummocky (Moundy) Glacial Deposits, Devensian Hummocky (Moundy) Glacial Deposits, Devensian (Welsh Ice) Hummocky glacial deposits undivided [Obsolete: use BDMO] Hummocky moraine Humph Coal (Central Coalfield) Humph Rider Blackband Ironstone Humph Rider Coal Humphrey Head Limestone Member Huncliff (Foxholes) Rock [Obsolete: use HNC] Huncliffe Rock Hunder Beck Limestone Hundleby Clay [Obsolete: use HBC] Hundleby Clay Facies [Obsolete: use HBC] Hundleby Clay Formation [Obsolete: use HBC] Hundleby Clay Member Hunsingore Esker Member Hunstanton Chalk Formation [Obsolete: use HUCK] Hunstanton Chalk Member [Obsolete: use HUCK] Hunstanton Formation Hunstanton Limestone [Obsolete: use HUCK] Hunstanton Red Chalk Formation [Obsolete: use HUCK] Hunstanton Red Rock [Obsolete: use HUCK] Hunstanton Till [Obsolete: use HOTI] Hunt Hill Intrusion Huntershill Cement Limestone Huntingbridge Formation [Obsolete] Huntingdon Road Member Huntley Formation Huntley Hill Formation Huntley Quarry Beds Huntly-Knock Pluton Hunts Bay Group [Obsolete: use HBO] Hunts Bay Oolite Formation [Obsolete: use HBO] Hunts Bay Oolite Group [Obsolete: use HBO] Hunts Bay Oolite Subgroup Huntsham Hill Conglomerate Formation Hurdlow Sandstones Hurlet Coal Hurlet Limestone Hurlet Limestone And Blackhall Limestone (Undifferentiated) Hurlet Seam Hurlford Main Coal (North Ayrshire) Hutton Coal (Northumberland and Durham) Hutton Henry Bed Hutton Henry Peat Hwch Coal (South Wales) Hwylfa Formation Hydraulic Limestone Series [Obsolete: use BNT] Hydraulic Limestones [Obsolete: use BNT, EBB, ELL, SMD] Hydrocarbons Extraction Hylton Castle Coal (Durham) Hylton Marine Band [Local Name: see SOMB] Hyner Formation [Obsolete: use HYMU, HYSH] Hyner Mudstone Formation Hyner Mudstone Formation And Trusham Mudstone Formation (Undifferentiated) Hyner Shale [Obsolete: use HYMU, HYSH] Hyner Shale Formation [Obsolete: use HYMU] Hyner Shale Formation and Trusham Shale Formation (Undifferentiated) [Obsolete: use HYTM] Hyner Shale, Trusham Shale [Obsolete: use BTN] Hypersthene Andesite [Obsolete: use MVF] Hypersthene Basalt Series [Obsolete: use MVF] Hyssington Volcanic Formation [Obsolete: use HYS] Hyssington Volcanic Member Hythe Beds [Obsolete: use HY] Hythe Formation Hythe Formation And Atherfield Clay Formation (Undifferentiated) Hythie Member [Obsolete: use HYTIL] Hythie Till Formation I Shale [Obsolete: use CHNT] Ible Microgabbro Sill Ibrox Blackband Ironstone (Glasgow) Ibrox Coal (Glasgow) Icart Orthogneiss Icconhurst Sandstone Icconhurst Sandstone [Obsolete: use ICS] Ice contact deposits Icenian Crag [Obsolete: use NCG] Ida Formation Iford Marls (One) Iford Marls (Two) Igneous Conglomerate [Obsolete: use FEN] Ijmuiden Ground Formation Ilford Silt Formation [Obsolete: use ILSI] Ilford Silt Member Ilfracombe Beds [Obsolete: use IFS, KSL] Ilfracombe Group [Obsolete: use IFS, LSS] Ilfracombe Slates [Obsolete: use MSL] Ilfracombe Slates Formation In part: Chatburn Limestone Group [Obsolete] Ince Deep Yard Coal (South Lancashire) Ince Four Foot Coal (South Lancashire) Ince Furnace Coal (South Lancashire) Ince Seven Foot Coal (South Lancashire) Ince Six Foot Coal (South Lancashire) Ince Yard Coal (South Lancashire) Inch Coal (South Lancashire) Inch Mine Coal [Obsolete: use INCO] Inch Mine Rock [Obsolete: use IR] Inch Rock Inchard Gneisses Inchcolm Sill Inchinnan Limestone Inchmickery Sill Inchmurrin Conglomerate Formation [Obsolete: use IMC] Inchmurrin Conglomerate Member Inchrory Limestone Formation Includes Firedamp Coal (FDC), Half Yard Coal (HYC) And Stone Coal (STEC) Includes the fluvial parts of Swettenham and Lytham Formations [Obsolete: use LUNV] Indefatigable Grounds Formation Index Limestone (England and Wales) Index Limestone (Scotland) Index Limestone [Duplicate: use ILS] Indigo boulder clay [Obsolete: use PGTI] Industrial Waste Tip Inert Waste Tip Inferior Cannel Coal (Lancashire) Inferior Oolite [Obsolete: use BEAS, INO] Inferior Oolite Formation (Wessex) [Obsolete: use INO] Inferior Oolite Group Inferior Oolite Group (Skye) Inferior Oolite Group And Great Oolite Group (Undifferentiated) Inferior Oolite Series [Obsolete: use INO] Infilled Ground Infra-Kilranny Greywackes [Obsolete: use BMO] Inge Volcanics Formation Ingham Sand and Gravel Formation Ingham Sands and Gravels [Obsolete: use ISAG] Ingleston Vent Ingleton Group Ingletonian [Obsolete: use ING] Iniscarn Formation Iniscarn Sandstone Formation [Obsolete: use IS] Inishowen Head Grits Inishtrahull Gneiss Injebreck Formation Inland Series [Obsolete: use EGAG, EGD] Inland Series Till [Obsolete: use BLTI] Inland tills [Obsolete: use EGD] Innellan Formation Innellan Group Inner Bytownite Troctolites (Cuillin Centre: Unit E) Inner Cross-Cutting Bytownite Gabbro (Cuillin Centre: Unit D) Inner Gabbros (Cuillin Centre: Unit F) Inner Garnfor Microgranodiorite Intrusion Inner Hebrides Group Inner Layered Gabbro Zone Inner Nebbock Sill Innes Carbonate Member Innse Quartzite Member Inoceramus Beds Insch Pluton Insch Pluton (Boganclogh Sector Lower Zone) Insch Pluton (Boganclogh Sector Middle Zone) Insch Pluton (Boganclogh Sector Upper Zone) Insch Pluton (Boganclogh Sector) Insch Pluton, Lower Zone Insch Pluton, Middle Zone Insch Pluton, Upper Zone Insect Beds [Obsolete: use WCT] Inshes Flagstone [Obsolete: use INF] Inshes Flagstone Formation Instow Beds [Obsolete: use CKF] Instow Fish Bed Interbasaltic Formation Interglacial beach deposits Interglacial deposits Interglacial fluvial deposits Interglacial gravel beach deposits [Obsolete: use IGBD] Interglacial lacustrine deposits Interglacial marine deposits Interglacial marine shoreface and beach deposits Interglacial silt and clay Interglacial terrace deposits [Obsolete: use IGFD] Intermediate and Garnetiferous Greywacke Groups [Obsolete: use GAL8, GAL7] Intermediate Beds [Obsolete: use HPSA] Intermediate Greywacke Group [Obsolete: use GAL4, GAL5, GAL6] Intertidal deposits Intertidal deposits (undifferentiated) Intertidal deposits (undifferentiated), 1 Intertidal Sandbank Deposits Intertidal Sandflat Deposits Inver Volcanic Formation Inverbrora Member Inverclyde Group Inverclyde Group And Strathclyde Group (Undifferentiated) Inverian Inverlair Psammite Formation Inverleven Formation [Obsolete: use INVN] Inverleven Gravel Member Invernaver Pelite Member Inverness (Albion) Glacigenic Subgroup Inverness Glacigenic Subgroup Inverness Sandstone Group Inverscaddle Formation [Obsolete] Inzie Head Gneiss [Obsolete: use DBIH] Inzie Head Gneiss Formation Inzie Head Group [Obsolete: use INZ] Inziebar Blackband Ironstone Iona Group Iona-Ross Of Mull Dyke Swarm Ipstones Edge Sandstones Irchester Member Ireleth Limestone [Obsolete: use IRE] Ireleth Member [Obsolete: use KENT] Irfon Formation Iris Anhydrite Member Irish Law Plug Irish Sea Coast (Albion) Glacigenic Subgroup Irish Sea Coast Glacigenic Subgroup Irish Sea Drift [Obsolete: use ISCG] Irish Sea till [Obsolete: use SAGL, LLEYN] Iron Crag Microgranite Iron Crag Microgranite (In Carrock Fell Complex) [Obsolete: use CFCOI] Iron Ore of Westbury [Obsolete: use WI] Iron Post Limestone Iron Sands of Seend [Obsolete: use SEEI] Iron Scars Limestones Iron Tors Limestone [Obsolete: use IT] Iron Tors Limestone Member Ironstone Beds [Obsolete: use NS] Ironstone Series [Obsolete: use CDI, NS] Ironstone Shale Member Irthing Shell Bed Irvinestown Dyke Isabella Coal [Obsolete: use UNMI] Isabella Seam Island Magee Silts Member [Obsolete: use ISMS] Island Magee Siltstone Formation Island Sandstone Member Islay Limestone [Obsolete: use DAIL] Islay Quartzite Islay Subgroup Isle of Man Catchments Subgroup Isle Port Conglomerate Member Isles of Scilly Intrusion Islington Slates [Obsolete: use RRAM] Isohomoceras sp. nov. Marine Band Isohomoceras sp. nov. Marine Band [Duplicate: use H1B2] Isohomoceras subglobosum Marine Band (1 of 3) Isohomoceras subglobosum Marine Band (2 of 3) Isohomoceras subglobosum Marine Band (3 of 3) Isohomoceras subglobosum Marine Band [See Also: H1A1, H1A2, H1A3] Itchen Formation Iubhair Beag Calcareous Formation Ives Head Formation Ivy Farm Laminated Silt Member J Sand [Obsolete: use PIBR] J1 Jack And Balls Ironstone (South Wales) Jackdaw Quarry Oolite [Obsolete: use CLCL] Jacket's Point Formation Jackie Parr Limestone Formation Jacqui Sandstones [Obsolete: use FESA] Jampot Dolerite Janet Peat Limestone [Obsolete: use CAL] Jasper And Green-Rock "Series" [Obsolete] Jasper and Green-Rock Series [Obsolete: use NOE] Jaunt Coal Jean Formation Jean Sequence [Obsolete: use JEA] Jee's Member Jee's Member, Home Farm Member And Woodlands Member (Undifferentiated) Jefferson Mountain Vein Coal (Pembrokeshire) Jeffery's Vein Jenkin Coal (South Wales) Jenny Start Limestone Jennycliff Slate Formation [Obsolete: use SAH] Jennycliff Slates [Obsolete: use SAH] Jericho Gryphaea Bed Jerrycalf Limestone Jersey Shale [Obsolete: use JYSH] Jersey Shale Group Jersey Volcanic Group Jet Amber Coal (South Lancashire) Jet Rock Jet Rock Formation [Obsolete: use MULG] Jet Rock Member [Obsolete: use MULG, JRB] Jet Rock plus Bituminous Shales [Obsolete: use MULG] Jet Rock Series [Obsolete: use MULG] Jew Limestone [Obsolete: use JWL] Jew Limestone And Tyne Bottom Limestone (Undifferentiated) Jew Limestone Member Joan And Brown Rake Coal (Vale Of Belvoir) Joan Coal (West and South Yorkshire, and Nottingham) Joan Sandstone Joanne Sandstone Member Jock's Pool Limestone John O'Gate Coal (North Wales) John O'Groats Sandstone and Flagstone Group [Obsolete: use JOG] John O'Groats Sandstone Formation John O'Groats Sandstone Group [Obsolete: use JOG] Johnny Hall's Trees Limestone Johnshaven and Rouen Formations [Obsolete: use CATC] Johnshaven Formation [Obsolete: use BACO, CATC, SJKS, TWSA] Johnston Complex [Obsolete: use JOIN] Johnston Diorite Complex [Obsolete: use JOIN] Johnston Intrusive Complex Johnston Series [Obsolete: use JOIN] Johnstone Clayband Ironstone Johnstone Shell Bed Jonah Coal (South Wales) Jonathan Mudstone Member Jones Formation Jop Ridding Sandstone Member Jordanhill Blackband Ironstone Jordanhill New Blackband Ironstone Jorsalfare Formation Josephine Sandstone Member Joshua Mudstone Member Joyce's Coal (South Derbyshire) Juarjorge Pluton Jubilation Member Jubilee Coal (Central Coalfield) Judy Sandstone Member Jukes Formation Julius Mudstone Member Junceum Limestone Junction Bed [Obsolete: use BNLS] Junction Bed and Marlstone (Rock Bed) [Obsolete: use BNLS] Junction Beds (parts) of Wonham and Elliott (1996) [Obsolete] Junction Beds [Obsolete: use MHPS] Junction Limestone Jura Formation Jura Quartzite [Obsolete: use JUQU] Jura Quartzite Formation Jura Slate [Obsolete: use JUSL] Jura Slate Member Jura Slate(s) [Obsolete: use JUSL] Jurassic gravels [Obsolete: use CHSG] Jurassic Rocks (Undifferentiated) Jurassic Rocks And Cretaceous Rocks (Undifferentiated) Jurby Formation K Kailblades Coal (Lothians) Kale Water Till Formation Kallirhyncia Sharpi Beds [Obsolete: use ROAD] Kame and kettle deposits Kame terrace deposits Kate Brook Slate [Obsolete: use TVY] Kate Brook Succession [Obsolete: use TVY] Katrine Member [Obsolete: use BUSA] Katrine Vein Katystaklinn Vein Kays Lea Marine Band [Local Name: see LSMB] Keadew Formation Keasden Flags. Keasden Sandstones Keasgill Tuffs [Obsolete: use MRL] Keele Beds [Obsolete: use RWD, ALY, KE] Keele Formation [Duplicate 1: use KE] Keele Formation [Obsolete: use ALY, HA, MRD, SAL] Keele Group [Obsolete: use KE] Keele Sandstone Series [Obsolete: use KE] Keenaghan Shale Formation Keighley Bluestone Keills Limestone Member Keirs Limestone Keisley Limestone Formation Keith Intrusions Keith Limestone Formation Keith Limestone Member [Obsolete: use CUTL] Keith-Portsoy Granite Keith-Portsoy Syn-Tectonic Granitic Suite [Obsolete: use KEPO] Kelhead Breccia Member Kelhope Dyke Kellaways (or Kellaway) Rock [Obsolete: use KLS] Kellaways (or Kellaway) Stone [Obsolete: use KLS] Kellaways Beds [Obsolete: use KLB] Kellaways Beds Formation [Obsolete: use KLB] Kellaways Clay [Obsolete: use KLC] Kellaways Clay Member Kellaways Clay Member plus Cayton Clay Formation [Obsolete: use KLC] Kellaways Formation Kellaways Formation And Brantingham Member (Undifferentiated) Kellaways Formation And Langdale Beds Member (Undifferentiated) Kellaways Formation and Oxford Clay Formation (undifferentiated) Kellaways Formation and Oxford Clay Formation (undifferentiated) [Duplicate: use KLOX] Kellaways Formation plus Cayton Clay Formation [Obsolete: use KLB] Kellaways Formation, Oxford Clay Formation And Corallian Group (Undifferentiated) Kellaways Rock [Obsolete: use KLS] Kellaways Rock [Obsolete: use OSBY] Kellaways Rock Member [Obsolete: use OSBY] Kellaways Rock plus Kellaways Clay [Obsolete: use KLB] Kellaways Sand [Obsolete: use KLS] Kellaways Sand Member Kellaways Sand Member plus Kellaways Rock Member [Obsolete: use KLS] Kellaways Sand plus Cave Rock Member [Obsolete: use KLS] Kellaways Sand plus Kellaways Rock [Obsolete: use KLS] Kells Grit Kelly Burn Sandstone Kelly Burn Sandstone Formation Kelly Coal Kelly Coal (Dungannon) Kellyburn Sandstone Formation [Obsolete: use KBS] Kelman Hill Ultramafic Volcanic Member Kelsey Hill Gravels (Beds) Kelso Lavas [Obsolete: use KT] Kelso Subsuite Kelso Traps [Obsolete: use KT] Kelso Volcanic Formation Keltie Water Grit Formation Kelty Blackband Ironstone Kelty Blackband Ironstone (Comrie) Kelty Main Coal (Fife) Kelvin Formation [Obsolete: use KELV] Kemble Beds [Obsolete: use BLAD, FMB, SI] Kemble Beds Units I And II [Obsolete: use SI] Kemnay Pluton Kempsey Formation Kempton Marl Kempton Park Gravel [Obsolete: use KPGR] Kempton Park Gravel Member Kempton Park Member [Obsolete: use KPGR] Kendal Group Kendal Till Member Kendrick Marine Band [Local Name: see EMMB] Kenfig Formation Kenilworth Breccia Group [Obsolete: use KHS] Kenilworth Sandstone Formation Kenley Grit Member Kenn Church Member Kenn Court Member Kenn Formation Kenn Gravels [Obsolete: use KNN] Kennack Gneiss (and Granite) [Obsolete: use ZKG] Kennack Granite And Gneiss Kennedy's Pass Breccia Formation Kennel Sandstone Formation Kennelburn Ironstone Kennet Valley Formation Kennethmont Intrusion Kennford Breccias and Langstone Breccia [Obsolete: use HVBR] Kennmoor Coal (Bristol Area) Kennox Blackband Coal (Douglas) Kennox Ell Coal Kennox Jewel Coal (Douglas) Kennox Kiltongue Coal (Douglas) Kennox Lower Drumgray Coal (Douglas) Kennox Mid Coal (Douglas) Kennox Musselband Coal (Douglas) Kennox Nine Foot Coal Kennox Nine Foot Coal (Douglas) Kennox Seven Foot Coal Kennox Six Foot Coal Kennox Thirty-Inch Coal Kennox Upper Drumgray Coal (Douglas) Kennox Virtuewell Coal (Douglas) Kennox Wee Coal Kennpier Member Kenslow Member Kensworth Nodular Chalk Member Kent No.1 Coal Kent No.10 Coal Kent No.11 Coal Kent No.12 Coal Kent No.13 Coal Kent No.14 Coal Kent No.2 Coal Kent No.3 Coal Kent No.4 Coal Kent No.5 Coal Kent No.6 Coal Kent No.7 Coal Kent No.8 Coal Kent No.9 Coal Kent Ouse Formation Kent Ouse Terrace Deposits, 1 Member Kent Ouse Terrace Deposits, 2 Member Kent Ouse Terrace Deposits, 3 Member Kent Ouse Terrace Deposits, 4 Member Kent's Rock Kent's Thick Coal (West and South Yorkshire) Kent's Thin Coal (West And South Yorkshire) Kentford Member Kentisbury Slates Member Kentish Rother Formation Kentish Rother Terrace Deposits, 1 Member Kentish Rother Terrace Deposits, 2 Member Kentish Rother Terrace Deposits, 3 Member Kentish Rother Terrace Deposits, 4 Member Kentish Sands [Obsolete: use KNTS] Kentish Sands Member Kentish Stour Formation Kentmere Formation [Obsolete: use KMR, GSD] Kentmere Limestone Member Kentmere Pike Formation [Obsolete: use KMR] Kentmere Pike Rhyolites [Obsolete: use GSD, KMR] Kentmere Pike Tuff Formation Keresley Member Keristal Member Kerr Moraine Formation Kerrera Sandstone Formation Kersdown Beds [Obsolete: use KSDC] Kersdown Chert Formation [Obsolete: use KSDC] Kersdown Chert Member Kershaw Coal (Lancashire) Kershaw Mine Coal [Obsolete: use KSHW] Kershopefoot Basalt Beds Kesgrave Catchment Subgroup Kesgrave Formation [Duplicate 1: use KES] Kesgrave Formation [Obsolete: use KGCA] Kesgrave Formation And Lowestoft Formation (Undifferentiated) Kesgrave Sands and Gravels [Obsolete: use KGCA] Kessock Bridge Formation [Obsolete: use KEBR] Kessock Bridge Silt Formation Ketch Member Kettla Formation Kettla Member [Obsolete: use KTLA] Kettleholm Breccia Formation Kettleness Beds [Obsolete: use CDI] Kettleness Member Kettlepot Ganister Kettlewell Crag Member [Obsolete: use PKL] Ketton Heath Member Keuper "Series" [Obsolete: use SSG, MMG] Keuper Anhydrite Member Keuper Basement Beds [Obsolete: use STCF] Keuper Green Beds [Obsolete] Keuper Halite [Obsolete: use EEV] Keuper Halite Member Keuper Marl [Obsolete: use MMG] Keuper Marl and Sandstone [Obsolete: use MMG, SSG] Keuper Marl, Lower [Obsolete: use BOM, MMG, SIM] Keuper Marl, Middle [Obsolete: use BYM, MMG] Keuper Marl, Upper [Obsolete: use BMI] Keuper Saliferous Beds [Obsolete: use DHT, NWHF, WHT] Keuper Saliferous Beds, Lower [Obsolete: use NWHF] Keuper Saliferous Beds, Upper [Obsolete: use WHT] Keuper Sandstone [Obsolete: use AS] Keuper Sandstone Conglomerate [Obsolete: use BRWH] Keuper Sandstone Formation [Obsolete: use HEY] Keuper Sandstone Passage Beds [Obsolete: use BHSF, HEY] Keuper Sandstone, Lower [Obsolete: use BMS, HEY, HOL] Keuper Series, Lower [Obsolete: use SSG, MMG] Keuper Series, Lower, Basement Beds [Obsolete] Keuper Waterstones [Obsolete: use TPSF] Kevin Limestone Formation Kevin Limestones [Obsolete: use KV] Kevin Limestones Formation (Apron-Reef) Kexbrough Rock Khantore Pluton Kibblestone Formation [Obsolete: use KBN] Kibblestone Member Kiddens Formation [Obsolete: use CKF] Kidderminster Conglomerate Formation [Obsolete: use CHES, KDM] Kidderminster Formation [Obsolete: use CHES] Kidderminster Formation And Chester Pebble Beds Formation (Undifferentiated) Kidderminster Station Sand and Gravel Member Kidderminster Terrace [Obsolete: use KRT] Kidderminster Terrace Deposits (River Severn) [Obsolete: use KRT] Kidlaw Plug (And Associated Vent) Kidston Group Kilbarchan Lava Member Kilbarchan Lavas [Obsolete: use KBLA] Kilbarchan Sills Kilbirnie Mudstone Formation [Obsolete: use KLMD] Kilbirnie Mudstone Member Kilblane Sand And Gravel Formation Kilbride Limestone Member Kilbryan Limestone Formation Kilbucho Conglomerate Kilburn Coal (Leicestershire, South Derbyshire, Nottingham and Derby) Kilburn Rock Kilburn Sill Kilchattan Formation Kilchiaran Phyllite Formation Kilchiaran Phyllite Formation [Duplicate: use KIPH] Kilchoman Phyllite Formation Kilchrenan Conglomerate Formation Kilchrenan Conglomerates [Obsolete: use DBKC] Kilchrist Formation [Obsolete: use KILL] Kilchrist Hybrids (Skye Eastern Red Hills Centre) Kilchrist Member Kilchrist Pyroclastic Rocks (Skye Eastern Red Hills Centre) Kilcoan Sands Formation Kilcoan Sands Member [Obsolete: use KOS] Kilconquhar Marine Band Kilcoo Sandstone Formation Kildonan Psammite [Obsolete: use KILD] Kildonan Psammite Formation Kildonnan Member Kildonnan Member [Duplicate: use KILDN] Kildress Beds (part) [Obsolete: use KDS] Kildress Beds [Obsolete] Kildress Limestone [Obsolete: use KDS] Kildress Limestone Member Kilfillan Formation Kilgetty Vein Coal (Pembrokeshire) Kilkivan Coal (Machrihanish) Killearn Formation [Obsolete: use KARN] Killearn Sand And Gravel Member Killen Burn Fish Bed [Obsolete: use KNB] Killen Burn Mudstone Member Killerton Park Lavas [Obsolete] Killeter Quartzite [Obsolete: use DBKQ] Killeter Quartzite Formation Killeter Quartzite Formation [Duplicate: use DBKQ] Killey Bridge Formation Killiecrankie Schist [Obsolete: use DBKR, TUSC] Killiecrankie Schist Formation Killiecrankie Schist Formation And Carn Mairg Quartzite Formation (Undifferentiated) Killingworth Coal (Northumberland) Killooman Shale Member Killuney Conglomerate Formation Kilmalieu Psammite Kilmaluag Formation Kilmarnock Diamond Coal (North Ayrshire) Kilmarnock Ell Coal (North Ayrshire) Kilmarnock Five-Quarter Coal (North Ayrshire) Kilmarnock Gas Coal (North Ayrshire) Kilmarnock Jewel Coal (North Ayrshire) Kilmarnock Major Coal (North Ayrshire) Kilmarnock Mcnaught Coal (North Ayrshire) Kilmarnock Parrot Coal (North Ayrshire) Kilmarnock Shale Coal (North Ayrshire) Kilmarnock Splint Coal (North Ayrshire) Kilmarnock Tourha' Coal (North Ayrshire) Kilmarnock Turf Coal (North Ayrshire) Kilmarnock Upper Wee Coal (North Ayrshire) Kilmarnock Wee Coal (North Ayrshire) Kilmaronock Formation [Obsolete: use KILK] Kilmaronock Silt Member Kilmelford Intrusion Kilmorack Conglomerate Kilmuir Conglomerate Formation Kiln Bank Member [Obsolete: use KLN] Kiln Bank Tuff Member Kiln Coal (Scremerston) Kiln Coal Of Whaley Bridge Kiln Member Kiln Wood Beds Kilnholme Coal Kilnhurst Coal (Yorkshire) Kilnpool Limestone Kilnsey Formation Kilnsey Limestone [Obsolete: use SQLM, KLSL] Kilnsey Limestone-with-Mudstone [Obsolete: use SFLM] Kiloran Flags Formation Kilpatrick Intrusion (South Arran) Kilpothall Ironstones Kilranny Conglomerate [Obsolete: use KRC] Kilranny Conglomerate Member Kilranny Hill Formation Kilsby Tuff Member Kilskeery Group Kilslevan Limestone Member Kilsyth Cloven Coal Kilsyth Coking Coal (Glasgow-Airdrie) Kilsyth Hills Lava Member Kilsyth Hills Lavas [Obsolete: use KHLA] Kilsyth No.1 Blackband Coal (Glasgow Area; Central Coalfield) Kilsyth No.1 Blackband Ironstone Kilsyth No.1 Blackband Under Coal Kilsyth No.2 Blackband Ironstone Kilsyth No.3 Blackband Ironstone Kilsyth Sump Coal (Glasgow) Kiltongue Coal (Lanarkshire, Central Coalfield) Kiltongue Mussel Band Kiltongue Musselband Coal Kiltongue Musselband Ironstone Kiltyclogher Dolerite [Obsolete] Kilwinning Ell Coal (North Ayrshire) Kilwinning Lower Wee Coal (North Ayrshire) Kilwinning Main Coal (North Ayrshire) Kilwinning Stone Coal (North Ayrshire) Kimbridge Formation Kimmeridge Clay (Skye) Kimmeridge Clay Formation Kimmeridge Clay Formation and Ampthill Clay Formation (Undifferentiated) [Duplicate: use AMKC] Kimmeridgian Rocks (Undifferentiated) Kinbane Tuff [Obsolete] Kinbane Vent [Obsolete] Kincairney Lava Member Kincardine O'Neil Intrusion Kincorth Pegmatitic Granite Kincraig Formation Kincurdie Silts Formation [Obsolete: use KSI] Kincurdy Silts Formation Kinderscout Grit Kinderscout Grit Group [Obsolete: use HEBD, KG] Kinderscout Grit Series [Obsolete: use KG] King And Queen Coal (South Lancashire) King Blackband Ironstone (Glasgow) King Coal (Glasgow Area; Central Coalfield) King Coal (North Staffordshire) King Coal (South Lancashire) King Mine Coal [Obsolete: use KGCO] Kingbridge Limestone Kinghorn Volcanic Formation Kinglassie Splint Coal Kings Coal [South Wales Coalfield] Kings Manor Gravel Member Kingsand Rhyolitic Formation Kingscross Sill (South Arran) Kingsdale Limestone [Obsolete: use GDLL] Kingsdale Limestones [Obsolete: use GDLL] Kingsfield Member Kingshaw Limestone Kingshouse Breccia Member [Obsolete: use KHOB] Kingshouse Breccias Kingshouse Tuffs Kingsley Sandstone Kingsley Sandstone [Duplicate: use KYS] Kingsteignton Volcanic Group Kingsteps Sandstone Formation Kingston Beds Kingston Columnar Flints Kingston Formation Kingston Sand Member Kingswood Great Coal (Bristol Area) Kingswood Little Coal (Bristol Area) Kingswood Toad Coal (Bristol) Kinlet Beds [Obsolete: use KTB] Kinlet Formation [Obsolete: use ETM] Kinlet Microgabbro Sill Kinloch Beds [Obsolete: use TBK] Kinloch Formation Kinlocheil Quartzite Member Kinlochlaggan Boulder Bed [Obsolete] Kinlochlaggan Limestone Kinlochlaggan Quartzite [Obsolete: use KLLQ] Kinlochlaggan Quartzite Formation Kinmont Limestone Kinnairds Head Formation Kinnairds Head Group [Obsolete: use DBKH] Kinnegar Grits Formation Kinneil Kerse Beds [Obsolete: use KKSI] Kinneil Kerse Silt Member Kinnerton Sandstone Formation Kinnesswood Formation Kintra Dolostone Formation Kintra Limestone [Obsolete: use DAKL] Kintra Phyllites [Obsolete: use DAKP] Kintradwell Boulder Beds Member Kintyre Shell-Beds Kiondroughad Formation Kip Burn Formation Kip Carle Sandstone Kippet Hills Gravels [Obsolete: use KHG] Kippet Hills Gravels Formation Kirk Burn Silt Formation Kirk Hill Conglomerate [Obsolete: use KKH, WGAT] Kirk Hill Vent Kirk Stile Formation Kirk Stile Formation (Chiastolite Hornfelsed) Kirk Stile Formation (Hornfelsed) Kirk Stile Slates [Obsolete: use KST] Kirkaby Gneiss Formation Kirkbean Cementstone Formation [Obsolete: use KICM] Kirkbean Cementstone Member Kirkbean Member [Obsolete: use KICM] Kirkbean Sand And Gravel Formation Kirkbeck Formation [Obsolete: use HEBD, SAML] Kirkbeck Member [Obsolete: use KBF] Kirkburton Sandstone Kirkby Moor Flag Formation [Obsolete: use KMF] Kirkby Moor Flags [Obsolete: use KMF] Kirkby Moor Formation Kirkby's Back Coal Kirkby's Marine Band [Local Name: see HTMB] Kirkcolm Formation Kirkcolm Group [Obsolete: use KKF] Kirkconnell Splint Coal (Sanquhar) Kirkham Abbey Formation Kirkham Formation [Obsolete: use KMGL] Kirkham Member Kirkham Mudstone Formation [Obsolete: use KRM] Kirkham Mudstone Member Kirkham Till Member Kirkhill Basal Sand/Kirkhill Gravel [Obsolete: use POWSG] Kirkhill Church Sand Formation [Obsolete: use KHLCH] Kirkhill Church Sand Member Kirkhill Conglomerate [Obsolete: use CARM] Kirkhill Conglomerate Member Kirkhill Gelifluctate 4 [Obsolete: use CSEND] Kirkhill Gelifluctate 5 [Obsolete: use MANSE] Kirkhill Gelifluctate Complex 1 [Obsolete: use KTNGF] Kirkhill Gelifluctate Complex 2 [Obsolete: use CHLGE] Kirkhill Gelifluctate Complex 3 [Obsolete: use CHLGE, CSEND] Kirkhill Gelifluctate Complex 4 [Obsolete: use CSEND] Kirkhill Head 1 [Obsolete: use KTNGF] Kirkhill Head 2 [Obsolete: use CHLGE] Kirkhill Head 3 [Obsolete: use CSEND] Kirkhill Lower Buried Soil [Obsolete: use KHLPS] Kirkhill Lower Palaeosol [Obsolete: use KHLPS] Kirkhill Lower Sand and Gravel/Kirkhill Gravel [Obsolete: use POWSG] Kirkhill Lower Till [Obsolete: use ROTIL] Kirkhill Organic Deposits [Obsolete: use SWDEN] Kirkhill Organic Layer [Obsolete: use SWDEN] Kirkhill Palaeosol [Obsolete: use KHLPS] Kirkhill Palaeosol Bed Kirkhill Upper Buried Soil [Obsolete: use FSLCK] Kirkhill Upper Till [Obsolete: use HYTIL] Kirkhill Weathered Till [Obsolete: use ROTIL] Kirkhope Formation Kirkland Conglomerate Formation Kirkland Formation Kirkland Wood Sand And Gravel Member Kirklatch Marine Band Kirkley Bank Formation Kirklinton Sandstone [Obsolete: use SELF] Kirklinton Sandstone Formation [Obsolete: use HEY] Kirkmabreck Intrusion Kirkmaiden Beds [Obsolete: use KMN] Kirkmaiden Formation Kirkroad Coal Kirksanton Beds Kirkstead Member [Obsolete: use KSDSG] Kirkstead Sand and Gravel Member Kirkstile Slates [Obsolete: use KST] Kirkton Beds [Obsolete: use KRK] Kirkton Cementstones Member plus Kirton Cement Shale [Obsolete: use KCM] Kirkton Clay Member Kirkton Formation Kirkton Gelifluctate Bed [Obsolete: use KTNGF] Kirkton Gelifractate Bed Kirkton Member [Obsolete: use KTNGF] Kirkwood Formation Kirnhole Coal (Ayrshire) Kirsty Formation Kirsty Sequence [Obsolete: use KIRS] Kirtomy Gneisses [Obsolete: use LOCE] Kirton Beds (Part) [Obsolete: use KCM] Kirton Cementstone Beds (Knoll-Reef) [Obsolete: use LLL] Kirton Cementstone Beds [Obsolete: use LLL] Kirton Cementstones [Obsolete: use KCM] Kirton Cementstones and Kirton (Cement) Shale [Obsolete: use KCM] Kirton Cementstones Member [Obsolete: use KCM] Kirton Cementstones Member plus Kirton Shale Member [Obsolete: use KCM] Kirton Cementstones Member plus Santon Oolite Member plus Raventhorpe Beds Member [Obsolete: use LLL] Kite Hill Tuff Member Kittlepurse Coal (Lothian) Kitty Beck Limestone Kleppe Senior Formation Klibreck Psammite Formation Knight's Cross Gravel Member Knighton Sand and Gravel [Obsolete: use KNSG] Knighton Sand and Gravel Member Knighton Terrace Deposits Knightswood Coal (Glasgow Area; Central Coalfield) Knightswood Gas Coal (Glasgow Area; Central Coalfield) Knightswood Stone Coal (Glasgow Area; Central Coalfield) Knightswood Under Coal (Glasgow Area; Central Coalfield) Knipe Scar Limestone Formation Kniveden Sandstones Kniveton Lava Knock Beds [Obsolete: use BRW] Knock Farril Conglomerate Knock Head Grit [Obsolete: use KNHG] Knock Head Grit Member Knock Pike Formation [Obsolete: use KNPK] Knock Pike Tuff Formation Knock Semipelite Member Knock Wood Lava Member Knockando Quartzite Formation Knockdolian Spilitic Group [Obsolete: use BCN] Knockencorsan Hill Intrusion Knockgardner Formation [Obsolete: use KNG] Knockgardner Sandstone Formation Knockgardner Shales [Obsolete: use KNG] Knockgerran Shales Knockhill Blackband Ironstone Knockmore Limestone Member Knocknairshill Member Knockorr-Bombie Glen Vent Knockrushen Formation Knockshinnoch 2 Foot 3 Inch Coal (South Ayrshire) Knockshinnoch 2 Foot 7 Inch Coal (New Cumnock, South Ayrshire) Knockshinnoch Blackband Ironstone (New Cumnock) Knockshinnoch High Coal (South Ayrshire) Knockshinnoch House Coal (New Cumnock, South Ayrshire) Knockshinnoch Index Coal (New Cumnock) Knockshinnoch Laight Coal (New Cumnock, South Ayrshire) Knockshinnoch Main Coal (New Cumnock) Knockshinnoch Mid Coal (New Cumnock, South Ayrshire) Knockshinnoch Turf Coal (New Cumnock) Knockshinnoch Wee Coal (New Cumnock, South Ayrshire) Knocksoghey Formation Knocksoghey Sill [Obsolete] Knoll Reef [Obsolete: use GFLS] Knoll Reef Limestones [Obsolete: use LOLS] Knorri Beds Knorri Clays [Obsolete: use KNY] Knott Coal (Glasgow) Knott Copy Grit Knott Hill Formation Knott Hill Formation (Metasomatically Altered) [Obsolete: use KHSA] Knott Rider Coal Or Cannel (Glasgow) Knottyholm Coal Knottyholm Marine Band [Local Name: see SOMB] Knowehead Lava Member Knowehead Lavas [Obsolete: use KNLA] Knowle Sandstone Formation Knowle Sandstones [Obsolete: use KNS] Knox Pulpit Formation [Obsolete: use KPF] Knox Pulpit Sandstone Formation Knucklas Castle Beds [Obsolete: use KCA] Knucklas Castle Formation Knuckton Shell Beds Knuckton Shell-Beds Limestone Knypersley Marine Band [Local Name: see AMMB] Kokoarrah Shelly Sand Member Kreftenheye Formation Kupferschiefer Formation Kupferschiefer Formation [Duplicate: use KPSC] Kyle Group Kyle Limestone Formation [Obsolete: use BCDL, BRLI] Kyle Limestone unit Kyle Mudstone unit Kylnadrochit Semipelite Member Kymah Quartzite Formation Kynachan Psammite [Obsolete: use KYPS] Kynachan Psammite Formation Kynachan Quartzite [Obsolete: use KYQ] Kynachan Quartzite Formation Kynballoch Lava Member Kyrre Formation L L'Homme Mort Conglomerate Labour In Vain Vein Lackagh Sandstone Formation Lackagh Till Lackford Member Lacknakilly Plug Lacoon Sandstone Member Lacustrine alluvium Lacustrine Alluvium, First Level (Fermanagh) Lacustrine Alluvium, Fourth Level (Fermanagh) Lacustrine Alluvium, High Level (Fermanagh) Lacustrine Alluvium, Second Level (Fermanagh) Lacustrine Alluvium, Third Level (Fermanagh) Lacustrine beach deposits Lacustrine beach deposits, 1 Lacustrine delta deposits [Obsolete: use LADD] Lacustrine deltaic deposits Lacustrine deposits Lacustrine deposits (Lough Neagh, first level) Lacustrine deposits (Lough Neagh, second level) Lacustrine deposits (Lough Neagh, third level) Lacustrine deposits (Lough Neagh, undifferentiated) Lacustrine deposits (undifferentiated) [Obsolete: use LDE] Lacustrine deposits, 1 Lacustrine deposits, 2 Lacustrine diatomite Lacustrine gravel beach deposits Lacustrine shoreface and beach deposits Lacustrine shoreface deposits Lacustrine subaqueous fan deposits Lacustrine-bottom deposits Lacy's Farm Limestone Member Lad Gill Limestone Ladder Hills Formation Ladder Hills Formation And Nochty Semipelite And Limestone Formation (Undifferentiated) Ladies Tent Till Member Of The Berridale Formation Ladies Wood Limestone [Obsolete: use DNL] Lady Ann Coal (Glasgow; Central Coalfield) Lady Burn Conglomerate [Obsolete: use MLCG] Lady Burn Formation Lady Burn Mudstone [Obsolete: use LBM] Lady Coal (Lancashire) Lady Coal (Warwickshire) Lady Ha' Coal Lady Morton Coal Lady Port Banded Group and Ballanayre Slump Breccia [Obsolete: use LPT] Lady's Walk Formation [See also LAWA] Lady's Walk Shale Member [See also LDYW] Lady's Walk Shale Unit [Obsolete: use LDYW] Ladygrange Coal (Glasgow, Airdrie; Central Coalfield) Ladyha' Coal (North Ayrshire) Ladyport Formation Ladyport Formation [Duplicate: use LPT] Lag A'Bheith Formation Lag Bank Formation [Obsolete: use LBT] Lag Bank Tuff [Obsolete: use LBT] Lag Bank Tuff Formation Lagan Mor Formation Lagavarra Formation Laggan Cementstone Formation Laggan Cottage Mudstone Formation Laggan Member Laggan Sandstone Formation Laggantuin Cornstone Member Laggantuin Cornstones Formation [Obsolete: use LGT] Laght Hill Tonalite Lagrae Marine Band [Local Name: see EMMB] Laidhe na Greine Formation Laig Gorge Limestone Member Laig Gorge Sandstone Member Laig Limestone Formation [Obsolete: use LAGL] Laig Member Laig Siltstone Member Laimhrig Shale Member Laira Shales Laird's Burn Member Laird's Hill Lava Member Laird's Hill Lavas [Obsolete: use LDHL] Laird's Loup Lava Member Laird's Loup Lavas [Obsolete: use LDLL] Lairg Intrusions Laisterdyke Shell Bed Lake District Batholith Lake District Devonian Minor Intrusion Suite Lake District Ordovician Felsic Plutonic Suite Lake District Ordovician Mafic Plutonic Suite Lake District Ordovician Minor Intrusion Suite Lake floor deposits [Obsolete: use HSCLY] Lakenheath Member Lamancha Conglomerate Formation Lamb Rig Siltstone Member Lamb Sill Lamba Formation Lamberton Limestone [Obsolete: use DNL] Lambeth Formation Lambeth Group Laminated Beds (Woolwich Formation) Laminated Beds [Obsolete: use DCSA] Laminated Clay Or Brickearth Laminated Clays Laminated diamicton [Obsolete: use RUTI] Laminated Silt Lamington Conglomerate Member Laminosa Dolomite [Obsolete: use FPL] Lamlash Sandstone Formation Lammington's Vein Lampert Sandstone Lamplugh Formation Lanark Group Lanark Sandstone Formation [Obsolete: use SWAS] Lancashire Ladies Coal (Coalbrookdale) Lancing Flint Land Drainage Land Raising Domestic Refuse Fill Land Raising Industrial Fill Land Raising Inert Fill Land Raising Mine Fill (Colliery) Land Raising Mine Fill (Metalliferous Mineral) Land Raising Mine Fill (Non-Metalliferous Mineral) Land Raising Pit Fill (Superficial Deposit) Land Raising Quarry Fill (Hard Rock) Land's End Intrusion Landewednack Hornblende-Schist Landfill Waste Tip (Domestic Refuse) Landkey Formation [Obsolete: use DDC] Landlake Limestone Member Landscaped Ground Landscaping Associated with Archaeological Sites Landscaping Associated with Raised, Covered Structures Landscaping for Recreational Purposes (Generally Not Engineered) Landscaping For Site Formation (Generally Engineered) Landslide [Obsolete: use SLIP] Landslide deposits Landslip [Obsolete: use SLIP] Lane Foot Sandstone Lane Foot Sandstone Member [Obsolete: use LFOS] Laneast Quartzite Formation Lanercost Limestone Lang Geo Sandstone Member Langar Head Langavat Belt Langbridge Gravel Member Langdale Member Langhill Lava Member Langhill Lavas [Obsolete: use LHLA] Langholm Till Formation Langland Dolomite [Obsolete: use FPL] Langland Member Langland Till Member Langley Marine Band Langley Silt Formation [Obsolete: use LASI] Langley Silt Member Langness Conglomerate Formation Langport Member Langport Member And Blue Lias Formation (Undifferentiated) Langport Member And Blue Lias Formation (Undifferentiated) (Littoral Facies) Langport Member And Wilmcote Limestone Member (Undifferentiated) Langport Member, Blue Lias Formation And Charmouth Mudstone Formation (Undifferentiated) Langstone Breccias [Obsolete] Langton Clay Member Langton Series [Obsolete: use CA] Langwathby Bed Langwell Conglomerate [Obsolete: use LACO] Langwell Conglomerate Member Lansdown Clay Formation Lanton Hill Vent And Plug Lanty Crag Breccia Member Laphroaig Quartzite [Obsolete: use DBLQ] Laphroaig Quartzite Formation Lappathorn Member Lapworthella Limestone Largo Bay Member Largoward Black Coal (East Fife) Largoward Marl Coal Largoward Splint Coal Largoward Thick Coal (East Fife) Largs Lava Member Largs Lavas [Obsolete: use LGLA] Lark Formation Lark Valley Formation Larkfield Shale Member Larne Halite Larriston Sandstone Beds Larry Bane Chalk [Obsolete: use LBC] Larry Bane Chalk Formation Larry Bane Chalk Member [Obsolete: use LBC] Lask Edge Shales Late Weichselian Channel Fill Deposits, Undifferentiated (Offshore) Late Weichselian Deposits, Undifferentiated (Offshore) Late Weichselian Diamicton, Firm To Hard (Offshore) Late Weichselian Diamicton, Very Soft To Soft (Offshore) Late Weichselian gravel (offshore) Late Weichselian mud and sand, interbedded (offshore) Late Weichselian mud, firm to hard (offshore) Late Weichselian mud, very soft to soft (offshore) Late Weichselian sand (offshore) Late Weichselian Sediment, Undifferentiated, Affected By Mass Wasting And Iceberg Scour (Offshore) Late-glacial alluvium Late-Glacial Beach Deposits Late-Glacial Flood Gravel Late-Glacial Marine Deposits Late-glacial raised beach and estuarine alluvium [Obsolete: use SPYCL] Late-Glacial Silt Latheron Formation Latheron Subgroup [Obsolete: use LSU] Lathkill Lodge Basalt [Obsolete: use LOB] Lathkill Lodge Lava Member Lathkill Lodge Lavas [Obsolete: use LOB] Latrigg Formation Latrigg Member [Obsolete: use LRG] Latterbarrow Sandstone [Obsolete: use LAS, REN] Latterbarrow Sandstone Formation Lauchlan Formation Lauder Conglomerate [Obsolete: use GCGL] Laundry Mudstone Formation Laurencekirk Mudstone Formation [Obsolete: use CXF] Lavas and ashes of Old Red Sandstone age [Obsolete: use BGRV] Lavernock Shale Member Lavernock Shales [Obsolete: use LVN] Laverockhall Vein Laverton Sandstone Laverton Shales Law Formation [Obsolete: use CLVY, LAWSG] Law Sand And Gravel Member Lawmuir Formation Lawn Hill Conglomerate [Obsolete: use YWOL] Lawn Hill Conglomerate Member Lawns House Farm Sand Member Lawrenny Cliff Formation Lawsie Psammite Formation Lawston Limestone Lawston Linn Coal Group Lawthorn Diamicton Member Lawthorn Member Laxfirth Limestone [Obsolete: use LAXF] Laxfirth Limestone Formation Laxfordian (in part Rhiconich Group) [Obsolete: use ICGN, RUBR] Laxfordian [Obsolete: use RUBR, ICGN] Laxfordian Granite Vein Complex [Obsolete: use RUBR] Laxfordian Granite Vein-Complex (within Lewisian Complex) [Obsolete: use RUBR] Layered Peridotites (Cuillin Centre) Layered Peridotites, P1 Layered Peridotites, P2 (Cuillin Centre) Layered Peridotites, P3 (Cuillin Centre) Layered Peridotites, P4 (Cuillin Centre) Layered Peridotites, P5 (Cuillin Centre) Layered Peridotites, P6 (Cuillin Centre) Leac Nam Faoileann Member Leac-Strearnan Member [Obsolete: use TCA, TCAM] Leacroft Coal (South Staffordshire) Leadenham Mudstones [Obsolete] Leadhills Group [Obsolete: use LHG] Leadhills Supergroup Leagarth Pelite Formation Leagram Mudstone Member Leahill Limestone Lealt Shale Formation Leambreslen Conglomerate Member Leanach Sandstone [Obsolete: use LSA] Leanach Sandstone Formation Leap Hill Vent Leaze Formation Lebberston Member Leckenby Formation Leckhampton Limestone Member [Obsolete: use LECK] Leckhampton Member Leckpatrick Green Beds Ledard Burn Member Ledbury Beds [Obsolete: use WEH] Ledbury Formation [Obsolete: use MOCL] Ledbury Group [Obsolete] Ledmore Nepheline-Syenite Ledmorite Swarm Leen Sand And Gravel Lees Bottom Basalt [Obsolete: use LSBB] Lees Bottom Lava [Obsolete: use LSBB] Lees Bottom Lava Member Lees Coal (South Staffordshire) Lees Hill Group [Obsolete: use LEHL] Lees Hill Lava Member Leet Hill Sand And Gravel Member Leete Limestone Formation Leete Limestone Formation [Duplicate 1: use LEEL] Leete Limestone Formation And Loggerheads Limestone Formation (Undifferentiated) Leigh Barton Limestone Leighland Beds [Obsolete: use LESL] Leighland Slates Member Leighton Buzzard Sands [Obsolete: use WBS] Leine Halite Formation Leintwardine Beds [Obsolete: use LULT] Leintwardine Group [Obsolete: use LULT] Leitrim Group Leman Sandstone Formation Lemlair Sand Formation Lenham Beds [Obsolete: use LNM] Lenham Formation Lennoxtown Boss Lenthay Bed [Obsolete: use LEN] Lenthay Limestone Bed Lenton Sandstone Formation Lenton Sandstone Formation [Duplicate: use LNS] Leny Grit (in part) [Obsolete: use KWG] Leny Grits Leny Limestone [Obsolete: use LYLS] Leny Limestone and Shale [Obsolete: use LYLS] Leny Limestone and Slate Member Lenzie-Torphichen Dyke Lepton Edge Rock Lerwick Sandstone Formation Lerwick Sandstones [Obsolete: use LKF] Lesmahagow Main Gas Coal Lessans Formation Lessness Shell Bed Lester Beds [Obsolete: use LSS] Lester Series [Obsolete: use LSS] Lester Slates and Sandstones Member Leswalt Formation [Obsolete: use CMSC] Letchworth Gravels Formation Letham Beds [Obsolete: use LESI] Letham Silt Member Lethemwell Coal Lethen Bar Lethen And Clune Fish Bed Level Bedded Unit [Obsolete: use LNAB] Leven Schist Leven Schist Formation Leven Schists [Obsolete: use DALS] Levencorroch Mudstone Formation Levenseat Limestone [Obsolete: use CAS] Leverburgh Belt Lewes Marl Lewes Nodular and Flinty Chalk Member [Obsolete: use LECH] Lewes Nodular Chalk [Obsolete: use LECH] Lewes Nodular Chalk Formation Lewes Nodular Chalk Formation And Seaford Chalk Formation (Undifferentiated) Lewes Nodular Chalk Formation, Seaford Chalk Formation And Newhaven Chalk Formation (Undifferentiated) Lewes Nodular Chalk Formation, Seaford Chalk Formation, Newhaven Chalk Formation And Culver Chalk Formation (Undifferentiated) Lewes Nodular Chalk Formation, Seaford Chalk Formation, Newhaven Chalk Formation, Culver Chalk Formation And Portsdown Chalk Formation (Undifferentiated) Lewes Nodular Chalk Member [Obsolete: use LECH] Lewes Tubular Flints Lewis Member Lewis Till Formation Lewisburn House Coal (Northumberland) Lewisburn Kiln Coal (Northumberland) Lewisian Complex Lewisian Complex and Moine Supergroup (Undifferentiated) Lewisian Rocks (Undifferentiated) [Obsolete: use L] Lewisianoid Gneiss Complex Lewiston Beds Leyland Fm plus Preesall Halite Fm, Dowbridge Mudstone Fm and Warton Halite Fm Leyland Formation Leys Gravel Formation Leys Gravels [Obsolete: use LEY] Leys Lower Gravels [Obsolete: use LEY] Leys Member [Obsolete: use LEYST] Leys Till [Obsolete: use LEYST] Leys Till Formation Lezant Slate Formation Leziate Beds [Obsolete: use LZB] Leziate Member Leziate Sand Member [Obsolete: use LZB] Lianachain Complex Lianachain Complex, 1 Lianachain Complex, 2 Lianachain Complex, 3 Lianachain Complex, 4 Lias [Obsolete: use LI] Lias Group Lias Group (formerly Lias) [Obsolete: use LI] Lias Group And Inferior Oolite Group (Undifferentiated) Lias Group, Inferior Oolite Group And Great Oolite Group (Undifferentiated) Libishaw Sandstone Libishaw Shale Lickar Coal Lickar Limestone Lickbank Coal (Cumbria) Lickey Quartzite Formation Lickey Sandstone [Obsolete: use LQ] Lickle Formation [Obsolete: use LICK] Lickle Rhyolites [Obsolete: use STPI, LICK] Lickle Tuff Formation Liddaton Formation Liddesdale Group [Obsolete: use YORE] Lidget Coal (West and South Yorkshire) Lidgett Coal [Obsolete: use LGTC] Light Grey Slate [Obsolete: use TVS] Light Oolite [Obsolete: use PDO] Light Point Beds Light Point Hardgrounds Light Point Marls Lighthouse Marls (One) Lighthouse Marls (Two) Lighthouse Nodular Band Lightspout Formation Lightspout Formation [Duplicate: use LTGP] Lightspout Group [Obsolete: use LTGP] Lillie's Sandstone Lillie's Shale Coal Lillies Oil Shale Lilstock Formation Lilstock Formation (Marginal Facies) Lima Beds [Obsolete: use RLS] Lime Coal (New Cumnock, South Ayrshire) Lime Hill Serpentinite Limehill Beds [Obsolete] Limehillock Limestone Member Limekiln Beds [Obsolete: use DHLS, CKF] Limekiln Coal (North Staffordshire) Limekiln Gill Gravel Formation Limekiln Marine Band Limekiln Wood Limestone Member Limestone Coal Limestone Coal Formation Limestone Coal Formation And Upper Limestone Formation (Undifferentiated) Limestone Coal Group [Obsolete: use DLST, LSC, KLMD] Limestone Coal Group and Upper Limestone Group [Obsolete: use LCUL] Limestone Group (Of South Lancashire) Limestone Of Jura-Tayvallich Succession Limestone Series [Obsolete: use BNT] Limestone, Lower (dolomite) [Obsolete: use LLGS] Limestones in Laggan Burn [Obsolete: use LAGN] Limestones of Langham and Cucklington [Obsolete: use CUO] Limplum Sill Lincoln Hill Limestone [Obsolete: use LCHL] Lincoln Hill Limestone Bed Lincolnshire Limestone [Obsolete: use LL] Lincolnshire Limestone Formation Lincomb Tarns Formation [Obsolete: use LTA] Lincomb Tarns Tuff Formation Lindley Moor Grit Lindsayston Burn Member Linfit Lousey Coal (West Yorkshire) Ling Bank Formation Ling Sandstone Member Lingmell Formation [Obsolete: use LME] Lingmell Tuff Formation Lingmoor Fell Formation [Obsolete: use FSW, LWW] Lingmoor Tuff Lingula Flag Series [Obsolete: use LFS] Lingula Flags [Obsolete: use FF, LF] Lingula Flags Formation Linkbrae Limestone Member Linkhead Limestone Linkim Beds [Obsolete: use LIN] Linkim Formation Linley Formation Linn Bed Coal (North Ayrshire) Linn of Pattack Silt Formation Linney Head Beds [Obsolete: use LHD] Linney Head Formation Linnhe Formation [Obsolete: use PNTL] Linnhe Quartzite Member Linnhe Semipelite Member Linns Limestone Linoproductus Oolite [Obsolete: use PENO] Linstone Chine Member Lintrathen Ignimbrite [Obsolete: use LNP] Lintrathen Porphyry [Obsolete: use LNP] Lintrathen Tuff Member Linwood Blackband Ironstone Linwood Clay Member Linwood Formation [Obsolete: use LIWD] Linwood Shell Bed Lion's Haunch Vent Lion's Head Vent Lisbellaw Conglomerate Formation Lisgorman Shale Formation Lislea Granophyre Lismore Limestone [Obsolete: use DALL] Lismore Limestone Formation Lismore Limestone Group [Obsolete: use DALL] Lisnagrib Mudstone Member Lissan Conglomerate Formation Lista Formation Listeri Marine Band Litley Coal (Cheadle) Little Beach Bioclastic Limestone Member [Obsolete: use BRHD] Little Brass Coal (South Wales) Little Cannel Coal Little Caradoc Basalts [Obsolete] Little Caradoc Tuffs [Duplicate: use ULCT] Little Caradoc Tuffs [Obsolete] Little Coal (Bristol Area) Little Coal (Cumbria) Little Coal (In South Wales Lower Coal Measures) Little Coal (In South Wales Middle Coal Measures Formation) Little Coal (In Swansea Member, South Wales) Little Coal (North Wales) Little Coal (South Derbyshire) Little Coal (South Lancashire) Little Coal (South Staffordshire) Little Coal (West Yorkshire) Little Course [Obsolete: use LICC] Little Course Coal (Somerset) Little Dalby Head Little Dilhorne Coal (Cheadle) Little Fiery Coal (Bristol Area) Little Flint Coal (Coalbrookdale) Little Gubbin Ironstone (South Staffordshire) Little Hangman Member Little Hangman Sandstones [Obsolete: use LHS] Little Hereford Sand and Gravel Little Howgate Coal Little Jack And Balls Coal (South Wales) Little Jack Coal (South Wales) Little Jack Coal And Balls Coal (Undifferentiated) (South Wales) Little Kilburn Coal (South Derbyshire) Little Knot Picrite [Obsolete: use BADIN] Little Limestone Little Limestone Coal Little Main Coal (Cumbria) Little Main Seam [Obsolete: use LIMN] Little Marine Band [Local Name: see CWMB] Little Meldrum Member [Obsolete: use LMEL] Little Meldrum Tuff Member Little Minch Sill-Complex Little Morven Conglomerate Member Little Orme Limestone Member Little Rams Coal (South Lancashire) Little River Group Little Sole Formation Little Splint Coal Little Splint Coal (Fife) Little Splint Coal (Midlothian) Little Stand Tuff Member Little Strickland Limestone Little Sulphur Coal (Coalbrookdale) Little Weighton Marls Little Wenlock Basalt Member Little Whickhope Coal Little Whin Sill Little Wilbraham Member Little Wonder Coal (Rothbury Area) [Obsolete: use DLO] Little Woodfield Coal (South Derbyshire) Littlebeck Anhydrite Formation Littlebeck Formation Littlegate Limestone [Obsolete: use LTGL] Littlegate Limestones Bed Littleham Beds [Obsolete: use LMU] Littleham Formation [Obsolete: use LMU] Littleham Mudstone Formation Littleham Mudstones [Obsolete: use LMU] Littlemore Clay Beds [Obsolete: use LITC] Littlemore Member Littlestone Member Littlestone Till Formation Littleworth Beds Litton Tuff [Obsolete: use LT] Litton Tuff Member Liverton Slates [Obsolete: use RRAM] Lizard Complex Lizard Hornblende Schists Lizard Mica Schists Llan-Wen Hill Beds [Obsolete: use CEF] Llanarmon Formation, Leete Formation And Loggerheads Limestone Formation (Undifferentiated) Llanarmon Formation, Leete Formation And Loggerheads Limestone Formation (Undifferentiated) (Knoll-Reef) Llanarmon Limestone Formation Llanarmon Limestone Formation (Knoll Reef) Llanarmon Limestone Formation, Loggerheads Limestone Formation And Prestatyn Limestone Formation (Undifferentiated) Llanbabo Formation Llanbadrig Formation Llanbedr Formation Llanbedr Slates [Obsolete: use LBR] Llanbedr Slates and equivalents [Obsolete: use LBR] Llanbedrog Grits [Obsolete: use BWG] Llanbedrog Igneous Group [Obsolete: use LIG] Llanbedrog Ignimbrites [Obsolete: use LIG] Llanbedrog Mudstone [Obsolete: use PTN] Llanbedrog Volcanic Group Llanbedrog Volcanic Series [Obsolete: use LIG] Llanberis Slates Formation Llanbodo Formation [Obsolete: use LLBG] Llanddewi Glacigenic Formation Llanddoget Disturbed Bed Llanddoget Formation [Obsolete: use LLD] Llandeilo Flags Formation Llandeilo Limestone Formation Llandeilo Rocks (undifferentiated) [Obsolete: use LLDC] Llandeilo Shales Llandeilo to Ashgill Rocks (Undifferentiated) [Obsolete: use LLDA] Llandeilo to Caradoc Rocks (Undifferentiated) [Obsolete: use LLDC] Llandovery Beds [Obsolete] Llandovery Beds And Llandovery Mudstone (Undifferentiated) Llandovery Mudstone Llandovery Rocks (Undifferentiated) Llandovery Rocks And Wenlock Rocks (Undifferentiated) Llandrindod Tuff [Obsolete: use LATU] Llandrindod Tuff Formation Llandrindod Volcanic Formation Llandrygarn Gneiss Package Llandudno Pier Dolomite [Obsolete: use LNML] Llandudno Pier Dolomite Formation [Obsolete: use LNML] Llandudno Pier Dolomite Formation And Great Orme Limestone Formation (Undifferentiated) Llandulas Limestone [Obsolete: use LGHL] Llandulas Limestone Formation [Obsolete: use LGHL] Llandyfan Limestone [Obsolete: use OHL, PDO] Llandyfan Limestone Formation [Obsolete: use OHL] Llanelen Sandstone Member Llanelly Formation Llanelwedd Volcanic Formation Llanengan Formation Llanengan Formation and St Tudwal's Formation (undifferentiated) [Obsolete: use STLE] Llanfallteg Formation Llanfawr Mudstone Formation Llanfechell Group Llanfwrog Formation Llangammarch Formation Llangelynin Member [Obsolete: use LNTI] Llangelynin Till Member Llangibby Beds Llangynog Formation Llanishen Conglomerate Formation Llanmadoc Member Llanmawddwy Grit [Obsolete: use LLM] Llanrhychwyn Slates [Obsolete: use NOG] Llanrian Volcanic Formation Llanrian Volcanic Group [Obsolete: use LVG] Llanrian Volcanic Series [Obsolete: use LVG] Llanrychwyn Slates [Obsolete: use NOG] Llanstadwell Formation Llantwit Beds [Obsolete] Llanvirn And Caradoc Rocks (Undifferentiated) Llanvirn Rocks (Undifferentiated) Llanvirn To Ashgill Rocks (Undifferentiated) Llanwrtyd Volcanic Formation Llanymawddwy Formation Llanystumdwy Mudstone Formation Llay Marine Band [Local Name: see VDMB] Llechryd Member [Obsolete: use TFICL] Lledr Valley Tuffs Lledr Valley Volcanic Formation [Obsolete: use LVT] Lletty Beds [Obsolete: use LYB] Lletty Grit (Letty Beds) Lletty Member Llewelyn Volcanic Group Lleyn Shear Zone Lleyn Till Member Lligwy Sandstone Formation Lluest-Y-Graig Member Llwyn-y-Brain Formation [Obsolete: use LYMD] Llwyn-y-frân Sandstone Member Llwyneinion Half Yard Coal (North Wales) Llyfnant Flags [See Extensus Flags] Llyn Alaw Group Llyn Cau Mudstones [Obsolete: use TYGN] Llyn Conwy Formation [Obsolete: use AFM] Llyn Dinas Breccias Llyn Shear Zone Complex Llyn Shear Zone Rocks (Undifferentiated) [Obsolete: use LSZ] Llyn Teifi Member Llyn y Gafr Volcanic Formation Llyn-Y-Gadair Mudstones [Obsolete: use TYGN] Llyn-Y-Gader Mudstones And Shales Llyn-Y-Gafr Group [Obsolete: use LYG] Llyn-Y-Gafr Spilitic Group [Obsolete: use LBV, LYG] Llynfi Beds [Obsolete: use SWUCM, LLFB] Llynfi Beds And Rhondda Beds [Obsolete: use DER] Llynfi Formation [Obsolete: use LLFB] Llynfi Formation, Rhondda Formation and Brithdir Formation (Undifferentiated) [Obsolete: use LLRB] Llynfi Member Llynfi Member, Rhondda Member And Brithdir Member (Undifferentiated) Llynn Maelog Group Llysfaen Limestone [Obsolete: use LNML] Llysfaen Limestone Formation [Obsolete: use LNML] Loam Loamy Folkestone Beds [Obsolete] Loanhead No.1 Coal Loanheadhill Formation [Obsolete: use LAMN] Lobbs Member [Obsolete: use LOBSG] Lobbs Sand And Gravel Formation Local Ground Moraine [Obsolete: use THTI] Loch A Mhoid Metagabbro Suite Loch Ailsh Intrusion [Obsolete: use LAIL] Loch Ailsh Pluton Loch Ailsh Syenite S1 Loch Ailsh Syenite S2 Loch Ailsh Syenite S3 Loch Ailsh Ultramafic Rocks Loch Ainort Granite (Western Red Hills Centre: Phase 6) Loch Aline Glass Sand [Obsolete: use LAWS] Loch Aline Sandstone [Obsolete: use LAWS] Loch Aline White Sandstone [Obsolete: use LAWS] Loch An Uach Member Loch Ard Grit Formation Loch Arkaig Granite Gneiss Loch Avich Grit [Obsolete: use DCAG] Loch Avich Grit Formation Loch Avich Lavas [Obsolete: use DCAL] Loch Avich Lavas Formation Loch Awe Group Loch Awe Series [Obsolete: use AWE] Loch Ba (Centre 3) Suite Loch Borralan Intrusion [Obsolete: use LBRR] Loch Borralan Pluton Loch Broom Shell Bed Loch Broom Till Formation Loch Builg Diorite Loch Caorach Quartz-Gabbro Ring-Intrusion Loch Choire Injection Complex [Obsolete: use BADG] Loch Coire Formation Loch Coire Granite Loch Dhu Slate Member Loch Doon - Loch Dee Pluton [Obsolete: use DOON] Loch Doon Complex [Obsolete: use DOON] Loch Doon Granite [Obsolete: use DOON] Loch Doon Pluton Loch Doon Plutonic Complex [Obsolete: use DOON] Loch Dubh Formation Loch Duich Gneisses Loch Eil Division [Obsolete: use LEIL] Loch Eil Group Loch Eil Psammite Formation [Obsolete: use TAPS] Loch Fad Conglomerate [Obsolete: use LFC] Loch Fad Conglomerate Formation Loch Humphrey Member Loch Katrine Volcaniclastic Formation Loch Laggan Psammite Formation Loch Linnhe Intrusion Loch Lomond Clastics [Obsolete: use BMSA] Loch Loyal Syenite Complex Loch Loyal Syenite Pluton [Obsolete: use LLSY] Loch Lurgainn Till Member [Obsolete: use ASGL] Loch Maree Group Loch Maree Series [Obsolete: use LMR] Loch Na Cille Boulder Bed Loch Na Dal Beds [Obsolete: use TBLN] Loch Na Dal Formation Loch Nan Eala Arkose [Obsolete: use TCAS] Loch Ness Supergroup Loch Of Cliff Limestone Formation Loch Ranza Slate [Obsolete: use DCLS] Loch Ranza Slate Formation Loch Ryan Breccias [Obsolete: use LRN] Loch Ryan Formation Loch Scridain Sill Complex Loch Shin Till Formation Loch Stack Granite [Obsolete: use RUBR] Loch Staffin Beds [Obsolete: use GEST] Loch Sunart Facies [Strontian Pluton] Loch Tay Limestone [Obsolete: use LTAY] Loch Tay Limestone Formation Loch Treig Group Loch Treig Schist And Quartzite Formation Loch Urigill Carbonatite Loch Ussie Red Sandstones And Shales Lochaber (Transition) Subgroup [Obsolete: use DALO] Lochaber Subgroup Lochaber Subgroup And Ballachulish Subgroup (Undifferentiated) Lochaber Subgroup Baddoch Burn Pelite [Obsolete: use TUSC] Lochailort Pelite Formation Lochaline White Sandstone Formation Lochaline White Sandstone Formation And Beinn Iadain Mudstone Formation Lochan An Aodainn Gabbro Intrusion Locharbriggs Sandstone Formation Lochend Sill Locherben Breccia Formation Lochgelly Blackband Ironstone Lochgelly Blackband Ironstone And Coal Lochgelly Parrot Coal Lochgelly Splint Coal (Fife) Lochinch Cherry Coal (Glasgow) Lochlundie Pluton Lochmaben Formation Lochnagar Pluton Lochnagar Pluton, Phase 1 Lochnagar Pluton, Phase 2 Lochnagar Pluton, Phase 3 Lochnell Vein Lochore Parrot Coal Lochryan Formation [Obsolete: use KKF] Lochtay Limestone Formation Lochton Sand and Gravel Formation Lochty Back Coal Lochty Fore Coal Lochwinnoch Clay Member Lochwinnoch Formation [Obsolete: use LNCH] Lockerbie Breccia Member Lockington Limestone Formation Lodge Farm Limestone [Obsolete: use LGFL] Lodge Farm Limestones Bed Lodge Farm Silt And Clay Member Lodgedale Member Lodgement Coal (Central Ayrshire) Lodgement till Loess Logan Formation Logan Rock [Obsolete: use ULLA] Logan Water Beds [Obsolete: use LOGF] Logan's Bands Loganhouse Gravel Member Loggerheads Limestone Formation Loggerheads Limestone Formation (Knoll-Reef) Loggerheads Limestone Formation And Cefn Mawr Limestone Formation (Undifferentiated) Logie Coldstone Intrusion Logie Head Member [Obsolete: use SUNS] Logie Head Quartzite Member Logie Head Sub-Group [Obsolete: use LOGQ] Logie-Buchan (Albion) Glacigenic Subgroup Logie-Buchan Drift Group [Obsolete: use LBD] Logie-Buchan Glacigenic Group [Obsolete: use LBD] Logie-Buchan Glacigenic Subgroup Lomvi unit Lonachan Formation [Obsolete: use LONL] Lonachan Member Lonan and Niarbyl Flags [Obsolete: use LNN, GLDH] Lonan and Niarbyl Flags, Glen Dhoo Flags and Cronkshamerk Slates [Obsolete: use GLDH] Lonan Flags [Obsolete: use LNN] Lonan Formation London Clay [Obsolete: use BA] London Clay Basement Bed [Obsolete: use HWH, WAM] London Clay Formation London Clay Formation and Lambeth Group (Undifferentiated) London Clay Formation and Lower London Tertiaries (Undifferentiated) London Clay Group [Obsolete: use THAM] London Delf Coal (South Lancashire) London Fields Basalt Sill Londonderry Formation Londonderry Slate Member [Obsolete] Lonfearn Member Lonfearn Member [Duplicate: use LONFN] Long Bridge Sandstone Long Crag Grit Long Eaton Formation Long Holme Row Limestone Long Loch Member (Central Intrusion, Rum Layered Suite) Long Loch Member (Central Intrusion, Rum Layered Suite) [Duplicate: use RLC2] Long Nab Member Long Quarry Beds [Obsolete: use TIST] Long Quarry Sandstone Formation [Obsolete: use TIST] Long Ridge Sandstone Long Scar Sandstone Long Top Member [Obsolete: use LTT] Long Top Tuff Member Long Top Tuffs [Obsolete: use LTT] Longcarrow Cove Tuff Beds [Obsolete: use TVS] Longcleuch Vein Longhaugh Formation [Obsolete: use LUGH] Longhaugh Sand And Gravel Member Longlands Farm Member [Obsolete: use LOFA] Longlands Farm Tuff Member Longman Gravel Formation Longman Terrace Longmanhill Pluton Longmountain Siltstone Longmyndian Supergroup Longnor Grit [Obsolete: use LOS] Longnor Sandstone Longshank Gneiss Formation Longskelly Sill Longsleddale Conglomerate Member Longsleddale Formation [Obsolete: use WHH] Longsleddale Siltstones [Obsolete: use MHO] Longstone Mudstone Formation [Obsolete: use WDF] Longthorpe Member Longton Hall Coal (North Staffordshire) Longton Hall Marine Band [Local Name: see CWMB] Longville Flags Lonsdaleia Duplicata Band Lorn Plateau Lavas [Obsolete: use LPVO] Lorn Plateau Volcanic Formation Lorn Sedimentary "Series" [Obsolete: use KESA] Lorne Plateau Lavas [Obsolete: use LPL] Lorne Sedimentary "Series" [Obsolete: use LOSS] Lossiehead Formation Lossiemouth Sandstone Formation Lossit Limestone Formation Lothbeg Shale Member Lothian Subsuite Lough Derg Group Lough Esk Psammites Lough Foyle Succession [Obsolete] Lough Mourne Grit Formation Lough Neagh Clays Group Loughan Bay Schists [Obsolete] Loughor Little Coal (South Wales) Loughros Group And Falcarragh Pelites (Undifferentiated) Louise Member Loup of Fintry Lava Member Loup of Fintry Lavas [Obsolete: use LFLA] Lousey Coal (West Yorkshire) Lovat Bridge Sandstone Member Loveden Gryphaea Bed Low Barnsley Coal (West And South Yorkshire) Low Beamshaw Coal (South Yorkshire) Low Beeston Coal Low Bottom Coal (Lancashire) Low Bottom Mine Coal [Obsolete: use LOBO] Low Bright Coal (Nottingham and Derby) Low Bright Floor Coal (Nottingham) Low Camlarg Coal (Dalmellington) Low Carriteth Limestone Low Coal (Machrihanish) Low Coal (South Wales) Low Dean Limestone [Obsolete: use FFL] Low Estheria Band Low Furness Basal Formation [Obsolete: use MASA] Low Gamma-Ray Sands Unit [Obsolete: use CYSA] Low Grit Sandstone Low Grit Sill Low Haigh Coal Low Haigh Moor Coal (West And South Yorkshire) Low Impact Continuous Development Low Impact Distributed Development Low Level Gravel of Inverness [Obsolete: use LNGR] Low Maid Coal (Cumnock) Low Main Coal (Derby) Low Main Coal (Midgeholm) Low Main Coal (Warwickshire) Low Mill Gravel Member Low Power Station Terrace [Obsolete: use PSTT] Low Scales Sandstone Member Low Tipalt Limestone Low Tupton Coal (Derbyshire And South Yorkshire) Low Water Formation [Obsolete: use LWW] Low Water Tuff Formation Low Wath Till Member Low Whinmoor Coal (West And South Yorkshire) Lowca Till [Obsolete: use LCTI] Lowca Till Member Lowcray Formation [Obsolete: use LOCY] Lowcray Tuff Formation Lowdean Limestone Lower "Ostrea" Beds [Obsolete: use DTM] Lower Abdon Limestone [Obsolete: use LAL] Lower Abdon Limestone Member Lower Acid Group [Obsolete: use OF] Lower Acid Rhyolitic Group [Obsolete: use LAV] Lower Acid Volcanic Group [Obsolete: use OF] Lower Aisholt Limestone Lower Alston Group [Obsolete: use ESKT] Lower Alton Coal Lower and Middle Holywell Beds [Obsolete] Lower and Middle Limestone Groups [Obsolete: use AG] Lower And Middle Purbeck Beds (Undifferentiated) [Obsolete] Lower and Upper Whitcliffe Beds [Obsolete: use WHIT] Lower Andesite [Obsolete: use BFA] Lower Antiquatonia Band Lower Ardross Limestone Lower Argillaceous Beds [Obsolete: use HSW] Lower Bagshot Beds [Obsolete: use BGS] Lower Bala Group Lower Bampton Limestones [Obsolete: use HYBC, BPLM] Lower Banton Smithy Coal Lower Basalt Formation Lower Basic (Volcanic) Series Lower Basic Volcanic Group Lower Bassy Marine Band [Obsolete: use HLMB] Lower Bath-House Wood Limestone Lower Beenham Grange Gravel Lower Bembridge Marls Lower Bench Coal (North Wales) Lower Bench Coal (Warwickshire) [Obsolete] Lower Bent Coal (South Lancashire) Lower Bent Mine Coal [Obsolete: use LOBT] Lower Bentham Grit Lower Beoil Banded Quartzite [Obsolete: use DUNQ] Lower Beryl Floating Sand Grain Unit [Obsolete: use DARW] Lower Beryl Sandstone 1 [Obsolete: use STAT] Lower Beryl Sandstone 2 [Obsolete: use NANN] Lower Beryl Shale [Obsolete: use DARW] Lower Birkhill Shales Lower Bishopsmoat Beds Lower Black Coal (South Wales) Lower Blackbird Coal (Lothian) Lower Blaisdon Beds Lower Blue-Black Slates [Obsolete: use BNF] Lower Bluers Coal (South Wales) Lower Border Group [Obsolete: use BGN, LYNE] Lower Bottom Coal (Lancashire) Lower Boulder Clay [Obsolete: use CHAK, STIL, SEAG, RVTI, LWTI, STPTG] Lower boulder clay of the main glaciation [Obsolete: use HRTI] Lower Bowland Shale Formation [Obsolete: use BSG] Lower Bowland Shales And Middle Bowland Shales (Undifferentiated) [Obsolete] Lower Brampton Coal (Derbyshire) Lower Brimham Grit Lower Bringewood Beds [Obsolete: use LBN] Lower Bringewood Formation Lower Broadford Beds [Obsolete: use BFB, BRKH] Lower Brodini Coal (South Wales) Lower Brown Limestone [Obsolete: use FOF, LEEL, LNML] Lower Building Stones and Ragstone [Obsolete: use TIY] Lower Bunter [Obsolete: use BRI] Lower Caered Mudstones [Obsolete: use CRAD] Lower Caerhedyn Coal (South Wales) Lower Caithness Flagstone Formation [Obsolete: use LCF] Lower Caithness Flagstone Group [Obsolete: use LCF, LSF] Lower Caithness Flagstone Subgroup Lower Calcareous Grit [Obsolete: use HYB, KTON, TECY, BYSA] Lower Calcareous Grit and Berkshire Oolite Series [Obsolete: use RECF] Lower Calcareous Grit Formation Lower Calcareous Grit Formation And Coralline Oolite Formation (Undifferentiated) [Yorkshire] Lower Calcareous Grit Formation and Kingston Formation (undifferentiated) [Obsolete: use HYBK] Lower Calcareous Grit, Highworth Limestone, Pusey Flags, Highworth Clay and Highworth Grit [Obsolete: use KTON] Lower Calcereous Grit [Obsolete: use NGT] Lower Calciferous Sandstone [Obsolete: use IS] Lower Calciferous Sandstone Measures [Obsolete: use IS] Lower Calp Shale of the Calp or Middle Limestone [Obsolete: use BUNS] Lower Cambrian Rocks (Undifferentiated) Lower Camphill Limestone Lower Camregan Grits [Obsolete: use LCRG] Lower Camregan Grits Formation Lower Carboniferous Basal Breccia Lower Carboniferous Rocks (Undifferentiated) Lower Carboniferous Sandstone [Obsolete: use BYC] Lower Carboniferous Sandstone and Shale [Obsolete: use OMSG] Lower Cardenden Smithy Coal (Fife) Lower Carriden Limestone Lower Carstone [Obsolete: use CA] Lower Castletown Limestones [Obsolete: use DBH] Lower Cemetery Beds Lower Chalk (part) [Obsolete] Lower Chalk [Obsolete: use FYCK, GYCK] Lower Chalk Formation Lower Chalk Formation and Middle Chalk Formation (Undifferentiated) Lower Chamber Coal (South Lancashire) Lower Chamber Mine Coal [Obsolete: use LCHR] Lower Channel Deposits [Obsolete: use LBK] Lower Charles Coal (South Staffordshire) Lower Churnet Shales Lower Clay Member (Breydon Formation) Lower Claystone (Gault) Lower Clifton Down Limestone Formation [Obsolete: use CDL] Lower Clifton Down Mudstone [Obsolete: use CDM] Lower Clifton Down Mudstone Formation [Obsolete: use CDM] Lower Clod Coal (North Staffordshire) Lower Coal "Series" (Bristol/Somerset) Lower Coal Measures (Scotland) [Obsolete: use LCMS] Lower Coal Measures [Obsolete: use PSLCM, SWLCM, PLCM] Lower Coal Measures Formation [Obsolete: use PLCM, SWLCM, LCMS] Lower Coal Measures Formation and Middle Coal Measures Formation (undifferentiated) [Obsolete: use PLMC, SWLMC] Lower Coldwell Beds [Obsolete: use BKR] Lower Comley Limestones Formation Lower Comley Sandstone Formation Lower Comley Sandstone Group [Obsolete: use LCSS] Lower Comley Series [Obsolete: use LCSS] Lower Comrie Blackband Ironstone Lower Coniston Grits (part) [Obsolete: use SGI] Lower Coniston Grits [Obsolete: use SGI] Lower Coral Rag [Obsolete: use HWLS] Lower Corallian [Obsolete: use TECY, BYSA, KTON] Lower Corallian Argillaceous Group [Obsolete: use WWB] Lower Cornbrash Member Lower Cosheston Division [Obsolete: use LLSW, MBY] Lower Coxtool Coal (Fife) Lower Cracker Coal Lower Crafnant Volcanic Formation Lower Crag [Obsolete: use RCG] Lower Crana Quartzite [Obsolete: use DBCQ] Lower Crana Quartzite Formation Lower Cretaceous Rocks (Undifferentiated) Lower Cretaceous Rocks (Undifferentiated) [Duplicate: use LOCR] Lower Crichton Limestone Lower Cromhall Sandstone Formation [Obsolete: use CHSA] Lower Culm [Obsolete: use STB, LCU] Lower Culm Group [Obsolete: use TEVY, BPLM] Lower Culm Measures (pars) [Obsolete: use TCH, DDC] Lower Culm Measures [Obsolete: use BPLM, MQF, NCH, TEVY, WCH] Lower Cwm Clyd Beds Lower Cwmgorse Marine Band [Local Name: see SFMB] Lower Dalness Ignimbrite Lower Dalradian Lower Dalradian Group [Obsolete: use APP] Lower Dalton Beds Lower Deep Coal (Cannock) Lower Delabole Slates [Obsolete] Lower Deltaic Series [Obsolete: use SWK] Lower Dements Limestone Lower Demesne Limestone Lower Devil's Bridge Formation [Obsolete: use LDB] Lower Devil's Bridge Formation and Middle Devil's Bridge Formation (Undifferentiated) [Obsolete: use LMDB] Lower Devil's Bridge Member [Obsolete: use DBF] Lower Devil's Bridge Member and Middle Devil's Bridge Member (undifferentiated) [Obsolete: use DBF] Lower Devonian (Lower Old Red Sandstone) Lavas [Obsolete: use EYVO] Lower Devonian Rocks (Undifferentiated) Lower Devonian Slates Lower Diamicton [Obsolete: use CBTIL] Lower Diamond Coal (Tranent; Lothian) Lower Dictyoclostus Teres Band Lower Division [Obsolete: use POOL] Lower Dolomite [Obsolete: use FPL, BHL] Lower Dolomite Formation [Obsolete: use FPL, BHL, BRL] Lower Dornoch Sandstone unit Lower Drumgray Coal (Central Coalfield) Lower Drybrook Sandstone [Obsolete: use CHSA, DS] Lower Dunscome Bed [Obsolete: use LDU] Lower Dunscome Goniatite Bed Lower Dykebar Coal Lower Dysart Coal Lower Earthy Delf Coal (South Lancashire) Lower Eday Sandstone [Obsolete: use STQS, LED] Lower Eday Sandstone Formation Lower Eight Foot Coal Lower Eighteen-Feet Coal (South Wales) Lower Elton Beds [Obsolete: use LEL] Lower Elton Formation Lower Elton Formation, Middle Elton Formation And Upper Elton Formation (Undifferentiated) Lower Erins Quartzite [Obsolete: use DBLE] Lower Erins Quartzite Formation Lower Estuarine "Series" [Obsolete: use CLH, GRF, SWK, EBB, SYCM] Lower Estuarine Beds [Obsolete: use GRF] Lower Estuarine Series (Inferior Oolite) [Obsolete: use HYSA] Lower Etive Rhyolite Lower Evaporites, Lower Evaporite Group, also Fordon Evaporite(s) [Obsolete: use FOEV] Lower Evaporites. Lower Falcarragh Pelite Lower Fell Top Limestone [Obsolete: use LFTL] Lower Felltop Limestone Lower Felltop Sandstone Lower Findhorn Sandstone unit Lower Fionchra Member Lower Fireclay Coal (Cumbria) Lower Fireclays Of The Passage Formation Lower Fireclays of the Passage Group [Obsolete: use LFCL] Lower Fish Tooth Bed Lower Fittleworth Member Lower Five Coal (Bristol Area) Lower Five-Feet Coal (South Wales) Lower Five-Feet Coal And Gellideg Coal (Undifferentiated) (South Wales) Lower Flaxley Beds Lower Flora Sandstone Lower Florida Coal (South Lancashire) Lower Flow Moss Lava Member [Obsolete: use FMLA] Lower Follifoot Grit Lower Follifoot Ridge Grit [Obsolete: use LFG] Lower Foot Coal (South Lancashire) Lower Foot Marine Band [Local Name: see HNMB] Lower Foot Mine Coal [Obsolete: use LFTC] Lower Foot Rock Lower Forest Beds Lower Forest Beds And Upper Forest Beds (Undifferentiated) Lower Formation [Obsolete: use STAT] Lower Four Feet Coal (Warwickshire) Lower Four-Feet Coal (South Wales) Lower Foxton Limestone Lower Freestone [Obsolete: use CLCL] Lower Freestones [Obsolete: use CLCL] Lower Freshwater Bed Lower Freshwater Bed of Thompson, 1930 [Obsolete: use STAM] Lower Freshwater Sequence [Obsolete: use STAM] Lower Fuller's Earth Member Lower Ganey Coal (Coalbrookdale) Lower Garscadden Blackband Ironstone (Glasgow) Lower Garscadden Coal (Glasgow) Lower Gasswater Coal Lower glacial [Obsolete: use STIL] Lower Glacial Series and Late-Glacial Series [Obsolete: use NURS] Lower Glen Gairn Sheets Lower Glenelly Schists [Obsolete] Lower Gramscatho Beds [Obsolete: use PORO] Lower Gramscathos [Obsolete: use PORO] Lower Graptolitic Mudstone Lower Gravels [Obsolete: use LGGR] Lower Greensand [Obsolete: use WBS, LGS, WHS] Lower Greensand And Upper Greensand (Undifferentiated) [Offshore Areas] Lower Greensand Group Lower Grey And Brown Limestone [Obsolete] Lower Grey and Dark Limestones of Lewis [Obsolete: use DBH] Lower Grinstead Clay Lower Group (Of South Lancashire) Lower Grovesend Coal (South Wales) Lower Gubbins Coal (South Staffordshire) Lower Gullane Head Sill Lower Gunnerton Fell Limestone Lower Gwastaden Group [See Gwastaden Group, GG] Lower Gwespyr Sandstone [Obsolete] Lower Gyffin Beds Lower Hamstead Beds [Obsolete: use HM] Lower Hartfell Shale Formation Lower Hartfell Shales [Obsolete: use LHBS] Lower Hartfell Wrae Limestone Lower Haslingden Flags Lower Hawes Limestone Lower Hayton Anhydrite [Obsolete] Lower Heathen Coal (South Staffordshire) Lower Heathen Coal (South Staffordshire) [Duplicate: use LHEC] Lower Hibernian Greensands [Obsolete: use CLLW] Lower High Main Coal (Leicestershire) Lower Hilton Terrace [Obsolete: use BOSG, EGSG] Lower Hirst Coal (Stirling) Lower Holcombe Brook Coal (South Lancashire) Lower Holywell Beds [Obsolete: use HCK] Lower Hot Shale [Obsolete: use BNSA] Lower Househill Clayband Ironstone Lower Howgate Edge Grit Lower Inferior Oolite [Obsolete: use BLPL] Lower Inferior Oolite And Middle Inferior Oolite (Undifferentiated) [Obsolete] Lower Inferior Oolite Formation [Obsolete: use BLPL] Lower Interbasaltic Member [Obsolete] Lower Jersey Coal (Fife) Lower Johnstone Shell-Bed Lower Jurassic And Middle Jurassic Rocks (Undifferentiated) Lower Jurassic Rocks (Undifferentiated) Lower Kent's Thick Coal (West And South Yorkshire) Lower Keuper Marl [Obsolete] Lower Keuper Saliferous Beds [Obsolete: use NWHF] Lower Keuper Sandstone [Obsolete: use OMS] Lower Keuper Sandstone and Waterstones [Obsolete: use SHSA] Lower Keuper Series [Obsolete] Lower Kimmeridge Clay Lower Kinderscout Grit Lower Kinniny Limestone [Obsolete: use MIHO] Lower Knott Coal (Glasgow) Lower Lancashire Ladies Coal (Coalbrookdale) Lower Lecket Hill Lava Member Lower Lecket Hill Lavas [Obsolete: use LLHLA] Lower Leintwardine Beds [Obsolete: use LULT] Lower Leintwardine Formation Lower Leintwardine Formation [Duplicate: use LLT] Lower Leintwardine Formation and Upper Leintwardine Formation (undifferentiated) Lower Leny Grit [Obsolete] Lower Level Vein Coal (Pembrokeshire) Lower Lias (Undifferentiated) [Obsolete] Lower Lias [Obsolete: use CHAM, RMU] Lower Lias and (?) Rhaetic [Obsolete: use DRB] Lower Lias Clay [Obsolete: use LLIC] Lower Lias Clay And Limestone [Obsolete] Lower Lias Clay Formation [Obsolete: use CHAM] Lower Lias Clay(s) [Obsolete: use CHAM] Lower Lias Clays [Obsolete: use LLIC] Lower Lias Marls (upper part) [Obsolete: use DICL] Lower Lias Marls [Obsolete: use PYC] Lower Lias Shales [Obsolete: use PYC] Lower Lias, Marginal Facies [Obsolete: use MRGF] Lower Liddesdale Group (Part) And Upper Border Group [Obsolete: use TYLS] Lower Liddesdale Group [Duplicate: use LRL] Lower Liddesdale Group [Obsolete: use TYLS] Lower Limestone Lower Limestone and Pea Grit [Obsolete: use CRKY] Lower Limestone Formation Lower Limestone Formation (England and Wales) Lower Limestone Group (Undivided) [Obsolete: use ENT] Lower Limestone Member Lower Limestone Shale [Obsolete: use AVO] Lower Limestone Shale Group [Obsolete: use AVO] Lower Limestone Shale Group And Dowlais Limestone (Undifferentiated) Lower Limestone Shales [Obsolete: use LSH] Lower Lincolnshire Limestone [Obsolete: use LLL] Lower Lincolnshire Limestone Member Lower Lincolnshire Limestone plus Middle Lincolnshire Limestone [Obsolete: use LLL] Lower Linn Limestone Lower Little Limestone Lower Llanbadoc and Upper Forest Beds [Duplicate: use UFLC] Lower Llanbadoc Beds Lower Llanbadoc Beds [Duplicate: use LLCB] Lower Llangibby Beds Lower Llangibby Beds [Duplicate: use LLYB] Lower Llwydcoed Coal (South Wales) Lower Lobster Bed [Obsolete: use LLOB] Lower Lobster Member Lower London Tertiaries [Obsolete] Lower Long Sands Sandstone Member Lower Longcraig Limestone Lower Longhope Beds Lower Ludlow Graptolitic Shales [Obsolete: use GFS, OAK] Lower Ludlow Group [Obsolete: use LLU, LLUS] Lower Ludlow Rock [Obsolete: use LLUS, LLU] Lower Ludlow Shales [Obsolete: use LLU, LLUS] Lower Ludlow Shales Formation [Obsolete: use LLUS] Lower Ludlow Shales Group Lower Ludlow Siltstone Formation [Obsolete: use LLU, LLUS] Lower Macleod Formation Lower Macleod Sequence [Obsolete: use LLOD] Lower Maesmelyn Coal (South Wales) Lower Magnesian Limestone (Durham) [Obsolete: use CDF, RML] Lower Maid Coal Lower Main Coal (Lower Seam) (Leicestershire) Lower Main Coal (Middle Seam) (Leicestershire) Lower Main Coal (South Derbyshire) Lower Main Coal (Upper Seam) (Leicestershire) Lower Marehill Clay Lower Marls [Obsolete: use AYB] Lower Matlock Lava [Obsolete: use LRB] Lower Matlock Lava Member Lower Matlock Limestone Lower Meltham Coal (West Yorkshire) Lower Member, Wether Law Linn Formation [Obsolete: use GHD] Lower Metagabbro (Shetland Ophiolite) Lower Miller's Dale Basalt [Obsolete: use LMB] Lower Miller's Dale Lava [Obsolete: use LMB] Lower Miller's Dale Lava Member Lower Millerhill Limestone Lower Millgrit Coal (Bristol Area) Lower Miocene Rocks (Undifferentiated) Lower Monkey Coal Lower Monsal Dale Beds [Obsolete: use MO] Lower Morar Psammite Formation Lower Morrison Formation Lower Mottled Beds (Reading Formation) Lower Mottled Clay Lower Mottled Mudstone Member Lower Mottled Mudstone Member And Upper Mottled Mudstone Member (Undifferentiated) Lower Mottled Sandstone [Obsolete: use BRI, KNSF, LNS] Lower Mountain Coal (South Lancashire) Lower Mountain Mine Coal [Obsolete: use LMOM] Lower Mudstones [Obsolete: use GMD] Lower Nantglyn Flags Group [Obsolete: use NGF] Lower New Red [Obsolete: use EXE] Lower Nine-Feet Coal (Lower Leaf) (South Wales) Lower Nine-Feet Coal (South Wales) Lower Nine-Feet Coal (Upper Leaf) (South Wales) Lower Nordland Unit Lower Oakwood Limestone Lower Oil Shale Group [Obsolete: use SYG] Lower Oil-Shale Group (Part) [Obsolete: use GUL] Lower Old Mill Limestone Lower Old Red Group Lower Old Red Sandstone "Tuffs" [Obsolete: use LABN] Lower Old Red Sandstone (Undifferentiated) [Obsolete: use LORS] Lower Old Red Sandstone and Lavas [Obsolete: use REST] Lower Old Red Sandstone Conglomerate (Undifferentiated) Lower Old Red Sandstone Extrusive Rocks Lower Old Red Sandstone Group [Obsolete: use DAUG] Lower Old Red Sandstone Lavas [Obsolete: use PDH, GEIL] Lower or Great Conglomerate [Obsolete: use GCGL] Lower or South Easterly Drift [Obsolete: use BCD, CRTI] Lower Orbirhynchia Bed Lower Oxford Clay [Obsolete: use PET] Lower Oxford Clay Member [Obsolete: use PET] Lower Palaeozoic Rocks (Undifferentiated) Lower Parkhouse Marine Band Lower part of Bed C [Obsolete: use GHD] Lower part of Boyne Limestone [Obsolete: use OLHL] Lower part of fossiliferous mudstones and siltstones [Obsolete: use GHD] Lower Part Of Portsoy Group [Obsolete: use CAPT] Lower part of Upper Rags and Bath Oolite (Undifferentiated) [Obsolete: use BHO] Lower Peacock Coal (South Wales) Lower Peat Member (Breydon Formation) Lower Pebidian (Undifferentiated) [Obsolete: use PN] Lower Pelite [Obsolete: use VAPE] Lower Pen-Y-Graig Mudstone Member Lower Pendleside Sandstone [Obsolete: use PNDS] Lower Pennant Measures [Obsolete: use PES] Lower Pennant Sandstones [Obsolete: use PES] Lower Pentamerus Limestone [Obsolete: use WLF] Lower Pentre Coal (South Wales) Lower Permian Marl Lower Permian Rocks (Undifferentiated) Lower Permian Sandstone [Obsolete: use CALN, CS] Lower Permian Sandstone Of Devon [Obsolete] Lower Permian Volcanics [Obsolete] Lower Perton Beds Lower Pigeon House Coal (South Lancashire) Lower Pilton Beds [Obsolete: use PLT] Lower Pinchin Coal (South Wales) Lower Pink Band Lower Plateau Beds Member Lower Plompton Grit Lower Plompton Grit [Duplicate: use LPG] Lower Plompton Grit Formation [Obsolete: use LPG] Lower Plumpton Grit Lower Portland Beds [Obsolete: use WAR] Lower Possil Ironstone (Glasgow Area; Central Coalfield) Lower Productive Coal [Obsolete] Lower Psammite [Obsolete: use GLPS] Lower Pulborough Sandrock Lower Purbeck [Obsolete: use OKY] Lower Purbeck Beds [Obsolete: use LULW] Lower Quarried Limestone Member Lower Quartzite [Obsolete: use GLPS] Lower Queen's Cairn Breccias Lower Rags (lower part) [Obsolete: use CODO] Lower Rags (upper part) [Obsolete: use TW] Lower Ragstone (upper part) [Obsolete: use TW] Lower Ragstones (lower part) [Obsolete: use CODO] Lower Red Bed and Pebble Bed Group [Obsolete: use CLWD] Lower Red Coal (North Wales) Lower Red Sandstone (Triassic) Lower Red Sandstone (Wenlock Series) [Obsolete: use HSW] Lower Red Shales [Obsolete: use CARL] Lower Reef Limestone (Leicestershire) [Obsolete] Lower Rhaetic [Obsolete: use WBY, PNG] Lower Rhyolitic Division [Obsolete: use PMV] Lower Rhyolitic Tuff Formation Lower Rigfoot Coal (New Cumnock) Lower River Terrace Deposits [Obsolete: use CASSG] Lower Rivergreen Limestone (Northumberland) Lower Roeburndale Grit [Obsolete: use RBL] Lower Roman Camp Beds Lower Rowhurst Coal (North Staffordshire) Lower Sand and Sandstone [Obsolete: use CI, SYS] Lower Sandstone [Obsolete: use DAS, THSA] Lower Sandstone and Breccia [Obsolete: use EXE] Lower Sandy Beds [Obsolete: use THS] Lower Sankey Marine Band [Local Name: see SFMB] Lower Seven-Feet Coal (South Wales) Lower Shafton Coal (West Yorkshire) Lower Shale and Quartzite Group [Obsolete: use MQF] Lower Shale Member [Obsolete: use CHNT] Lower Sheen Grit; Upper Sheen Grit [Obsolete: use SNS] Lower Shelly Clay (Woolwich Formation) Lower Shiaba Psammite Formation Lower Siller Willie Coal (Midlothian) Lower Siltstone Group Lower Silurian Volcanic Rocks (Undifferentiated) Lower Six-Feet Coal (South Wales) Lower Skateraw Limestone Lower Skelgill Beds [Obsolete] Lower Slatyband Ironstone Lower Sleaves Oak Beds Lower Soap Coal (South Wales) Lower South and Lower North Campsie Lavas, Upper South and Upper North Campsie Lavas [Obsolete: use CMLA] Lower Spencroft Coal Lower Spilsby Sandstone [Obsolete: use LSYS] Lower Spilsby Sandstone Member Lower Splint Coal Lower St Bees Sandstone [Obsolete: use SBS] Lower St Osyth Member Lower Stanhope Coal (South Derbyshire) Lower Stinking Coal (Cannock) Lower Stinking Coal (North Wales) Lower Stinking Marine Band [Local Name: see HTMB] Lower Stockport Marl Lower Stonesdale Limestone Lower Streaky Andesite Member Lower Stromness Flags [Obsolete: use LSF] Lower Stromness Flagstone Formation Lower Swansea Six Feet Coal (South Wales) Lower Tealby Clay Lower Tealby Clay (of The Tealby Series) [Obsolete: use LTC] Lower Tealby Clay Member [Obsolete: use LTC] Lower Thames Formation [Obsolete: use MNHD] Lower Thatcham Gravel Lower Thick Coal (South Staffordshire) Lower Thirty Inch Coal Lower Three Sisters Ignimbrite Lower Threequarters Coal (Cumbria) Lower Tilberthwaite Tuffs [Obsolete: use DH] Lower Tilmanstone Marine Band [Local Name: see AGMB] Lower Top Soft Coal (Nottingham And Derby) Lower Trap Lower Trenchard Coal (Forest Of Dean) Lower Trichwart Coal (South Wales) Lower Trigonia Grit [Obsolete: use LTG] Lower Trigonia Grit Member Lower Tunbridge Wells Sand Lower Tunbridge Wells Sand Formation [Obsolete: use LTW] Lower Turbot Anhydrite unit Lower Two Foot Coal (Dungannon) Lower Two Foot Coal (New Cumnock) Lower Unit of the Middle Bagshot Beds [Obsolete: use SWCL] Lower Upper Channel Deposits [Obsolete: use COP] Lower Veins Coals (Undifferentiated) (Pembrokeshire) Lower Vexhim Limestone [Obsolete: use MAHO] Lower Waterhouses Limestone [Obsolete: use KV] Lower Weald Clay Lower Weald Clay Member [Obsolete: use LWY] Lower Wee Coal (Glasgow Area; Central Coalfield) Lower Welsh Coal (South Wales) Lower Wenlock Limestone [Obsolete: use LQL] Lower Wenlock Limestone and Basement Beds (Together) [Obsolete: use LQL] Lower West Mills Marine Band Lower Westleigh Limestone [Obsolete: use WST] Lower Westleigh Limestones [Duplicate: use LWST] Lower Whitcliffe Beds [Obsolete] Lower Whitehills Group Lower Winter Hill Terrace Deposits Lower Witch Deposits [Obsolete: use WGDW] Lower Witch Ground Deposits [Obsolete: use WGDF] Lower Wooton Beds Lower Yard Coal (Cumbria) Lower Yard Coal (Lancashire) Lower Yard Coal (South Lancashire) Lower Yard Mine Coal [Obsolete] Lower, Middle And Upper Crafnant Formations (Undifferentiated) Lower, Middle and Upper Elton Beds [Obsolete: use ELTU] Lowerstoft Till [Obsolete: use LTIL] Lowery Coal (Forest Of Dean) Lowestoft Boulder Clay [Obsolete: use LOFT] Lowestoft Formation Lowestoft Gravel Member [Obsolete: use ASAG] Lowestoft Till Group [Obsolete: use LOFT] Lowestoft Till Member Loweswater Flags [Obsolete: use LWF] Loweswater Formation Loweswater Formation (Hornfelsed) Lowstone Ironstone Lowstone Marine Band Lowther Shales [Obsolete: use SHIN] Lowton Estheria Band Loxley Edge Rock Luachair Sandstone Formation [Obsolete: use LUSM] Luachair Sandstone Member Lubcloud Microgranite Lubhair Beag Semipelite Formation Luccombe Breccia Formation Luccombe Breccia Series [Obsolete: use LUBR] Ludgbridge Conglomerate Ludlow and Wenlock Rocks (undifferentiated) [Obsolete: use LUW] Ludlow and Wenlock Sedimentary Rocks (Undifferentiated) [Obsolete: use LUW] Ludlow Bone Bed [Obsolete: use LBB] Ludlow Bone Bed Member Ludlow Rocks (Undifferentiated) Ludlow Rocks and Wenlock Rocks (undifferentiated) [Duplicate: use LUW] Ludlow Shales [Obsolete] Ludlow-Wenlock Group [Obsolete] Lugar Blackband Ironstone Lugar Main Coal (Cumnock And Muirkirk, South Ayrshire) Lugasnaghta Shale Member Lugate Group Lugg Valley Formation Lugton Limestone Formation [Obsolete: use LLGS] Lulworth Beds [Obsolete: use LULW, OKY] Lulworth Formation Lum Edge Sandstones Lummaton Shell Bed Lumphanan Intrusion Lunan Clay Member Lunde unit Lundy Island Intrusion Lune Valley Formation Lurgaboy Dolomite Lurgaboy Shales [Obsolete] Lusa Limestone Member Lutetian And Bartonian Rocks (Undifferentiated) Lutetian To Priabonian Rocks (Undifferentiated) Luxton Nodular Limestone [Obsolete: use LNL] Luxton Nodular Limestone Formation Lyas [Obsolete: use LI] Lybster Flagstone Formation Lybster Formation [Obsolete: use REDR] Lybster Subgroup (- Wick Beds) [Obsolete: use LYBR] Lybster Subgroup [Obsolete: use LYBR] Lybster Till [Obsolete: use FOTI] Lydebrook Sandstone [Obsolete: use LYS] Lydebrook Sandstone Formation Lydford Formation [Obsolete: use BREN] Lyme Regis Beds [Obsolete: use BLI] Lynas Beds [Obsolete: use NHLB] Lynas Formation Lynavoir Semipelite Formation Lynch Coal (South Wales) Lynch Hill Gravel Formation [Obsolete: use LHGR] Lynch Hill Gravel Member Lynch Rider Coal (South Wales) Lyndhurst Member Lyne Formation Lyne Water Intrusion Lynebain Basic Volcanic Member Lynebank Beds [Obsolete: use LYN] Lynebank Member Lynecrook Limestone Lynn Mudstone Formation Lynslie Burn Beds Lynton Beds [Obsolete: use LNSL] Lynton Formation Lynton Formation [Duplicate: use LNSL] Lynton Slates [Obsolete: use LNSL] Lyon Coal Lyon's Gate Bed Lyoncross Coal (Glasgow Area; Central Coalfield) Lyoncross Limestone Lyons Delf Coal (South Lancashire) Lyre Geo Sandstone Formation [Obsolete: use LYR] Lyre Geo Sandstone Member Lysfaen Limestone Lytchett Matravers Sand Member Lytham Formation Lywn Beds M2 Marine Band [Local Name: see HNMB] M3 Limestone M5 Marine Band [Local Name: see AMMB] Maastrichtian Rocks (Undifferentiated) Mabel Seam MacAulay Formation MacAulay Sequence [Obsolete: use MACA] Macbeth Formation Macdonald Formation Macdonald Sequence [Obsolete: use MDON] Macduff Formation Macduff Slate [Obsolete: use MCD] Macduff Slates [Obsolete: use MCD] Machrie Sandstone Formation Machrins Arkose Formation Machroes Member MacIver Formation MacIver Sequence [Obsolete: use IVR] Mackay Formation Mackay Sequence [Obsolete: use MKY] Mackerel Formation Macleod Subsequence A [Obsolete: use LLOD] Macleod Subsequence B [Obsolete: use ULOD] Maclurea Beds Made Ground Maentwrog Beds [Obsolete] Maentwrog Formation Maentwrog Slates [Duplicate: use MAS] Maentwrog Slates [Obsolete: use MW] Maer Formation [Obsolete: use TPSF] Maerdy Mudstone Formation [Obsolete: use MFN] Maesbury Mudstone Formation [Obsolete: use AVO] Maesgwm Slates Maesmelyn Coal (South Wales) Maggie Coal Maggot Coal (South Wales) Maggot's Pike Limestone Magherameena Limestone Member Magilligan Sandstone Group [Obsolete] Magilligan Sill Magnesian Limestone (of Yorkshire), Upper [Obsolete: use BTH] Magnesian Limestone (Yorkshire), Upper [Obsolete: use BTH] Magnesian Limestone Formation (Northern Ireland And Northwest England) Magnesian Limestone, Lower (Yorkshire/East Midlands) [Obsolete: use CDF] Magnus Sandstone Member Magpie Clay Magpie Coal (Dungannon) Maguiresbridge Till [Obsolete] Maich Shell Bed Maid Coal (Cumnock and Muirkirk, South Ayrshire) Maiden Bower Flint Maiden Coal (Lancashire) Maiden Pap Conglomerate Formation [Obsolete: use MPSA] Maiden Pap Sandstone [Obsolete: use MPSA] Maiden Pap Sandstone Formation Maiden's Hall Sand And Gravel Formation Maidenhead Formation Maidens Sill [Obsolete] Maidenway Limestone Main Algal [Obsolete: use MAN] Main Algal Eight Main Algal Fourteen Main Algal Limestone Beds [Obsolete: use MAN] Main Algal Member Main Algal One Main Algal Ten Main Algal Twelve Main Bright Coal (Nottingham, Derby And South Yorkshire) Main Chert Main Coal (Ayrshire) Main Coal (Ballycastle, Northern Ireland) Main Coal (Cumbria) Main Coal (Dailly) Main Coal (Dungannon) Main Coal (Machrihanish) Main Coal (North Wales) Main Coal (Northumberland and Durham) Main Coal (Northumberland) Main Coal (Rothbury Area) Main Coal (Somerset) Main Coal (South Derbyshire) Main Craw Coal Main Donegal Granite Main Estheria Band Main Gasswater Coal Main Hosie Limestone Main Ironstone (Cadder) Main Ironstone (Carron) Main Ironstone Seam Main Late Devensian Till of the Vale of Eden [Obsolete: use GYTI] Main Limestone [Obsolete: use EML, GL, GML, ORTL] Main Limestone Group (Cumbria) [Obsolete: use GSCL] Main Limestone Group (South Wales) [Obsolete: use PEMB] Main Limestone Group [Obsolete: use MAL, PEMB] Main Limestone Member (Ballycastle, Northern Ireland) Main Non-Porphyritic Granite (Mount Battock Pluton) Main Piper Sand [Obsolete: use CHNT] Main Piper Sandstone [Obsolete: use PIBR] Main Porphyritic Granite (Mount Battock Pluton) Main Post Main Ravenhead Coal (South Lancashire) Main Rider Coal (South Derbyshire) Main Sand Member [Obsolete: use CHNT] Main Shale Bed (Llangollen Area) Main Smut Coal (Nottingham And Derby) Main Smut Sandstone Main Striped Group [Obsolete: use MAAP] Main Sulphur Coal (Coalbrookdale) Main Terrace [Obsolete: use HOHE, MNT] Main Terrace Deposits (River Severn) [Obsolete: use HOHE] Main Third Grit [Obsolete: use FLB] Mains Formation Mains Hill Agglomerate Formation Mains Of Mause Lavas Member Mains Of Sluie Conglomerate Formation Mainsgate Wood Sand And Gravel Member Maize Beck Limestone Major Coal (South Lancashire) Major Mine Coal [Obsolete: use MJCO] Malham Formation Malham Formation (Apron-Reef) Malin Complex Malin Formation Mall Formation Mallardale Shales [Obsolete: use CRAV] Mallardale Shales-with-Limestone [Obsolete: use CRAV] Malling Conglomerate Member Malling Street Marls Malm [Obsolete: use UGS] Malm Rock of Western Sussex [Obsolete: use UGS] Malpas Sandstone [Obsolete: use MASS] Malpas Sandstone Member Maltby Marine Band Maltby Marineband [Obsolete: use MTMB] Malton Oolite Member Malton Oolite Member And Coral Rag Member (Undifferentiated) Malvern Complex [Obsolete: use MVC] Malvern Quartzite Formation Malvernian [Obsolete: use MVC] Malvernian Complex [Obsolete: use MVC] Malvernian Group [Obsolete: use MVC] Malvernian Group gneisses [Obsolete: use MVC] Malvernian Group quartzite [Obsolete: use MVC] Malvernian Group schists [Obsolete: use MVC] Malvernian Series [Obsolete: use MVC] Malvernian System [Obsolete: use MVC] Malverns Complex Mam Tor Beds Mam Tor Sandstones Mammal Bed Mammaliferous Crag [Obsolete: use NCG] Man Of War Gneiss (And Granite) Man-Made Ground Not Mapped [Digital Maps Only] [Obsolete: use MANNM] Man-Made Ground Not Mapped Or Information Not Available [Digital Maps Only] Man-Made Theme Not Available [Digital Maps Only] Man-Made Theme Not Mapped [For Digital Map Use Only] Manaccan Beds [Obsolete: use GRO] Mancetter Grits and Shales [Obsolete: use MCSH] Mancetter Shale Formation Manchester Marine Band [Local Name: see EMMB] Manchester Marl [Obsolete: use MM] Manchester Marls Formation Manganese Group Manganese Shales And Equivalents Manganiferous/ferruginous deposits Mangaster Voe Intrusion Mangotsfield Coals Mangotsfield Formation [Obsolete: use MGF] Mangotsfield Group [Obsolete: use MGF] Mangotsfield Member Manifold Limestone-With-Shales [Obsolete] Manor Coal Manor Coal Of The Forth Manor Hotel Beds Mans Coal (Cheadle) Manse Gelifluctate Bed Manse Mudstone [Obsolete: use CMBN] Mansfield Marine Band [Local Name: see AGMB] Mansfield Red Sandstone Mansfield White Sandstone Mansley Beds Manson Coal Manson Shell Bed Manton 'Estheria' Band Manx Glacigenic Subgroup Manx Granite Suite Manx Group Manx Group Undivided [Obsolete: use MANX] Manx Group Undivided and Agneash Grits [Obsolete: use MANX] Manx Slate (Series) [Obsolete: use MANX] Manx Slate Group [Obsolete: use MANX] Manx Slate Series [Obsolete: use NBY, CRMR, DALBY, MANX] Manx Slates [Obsolete: use DALBY, MANX, NBY] Maol An Fhithich Quartzite [Obsolete: use DAMF] Maol An Fhithich Quartzite Formation Maol Na Gainmhich Granite (Western Red Hills Centre: Phase 7) Maplewell Group Maplewell Series [Obsolete: use CMV] Mapped As 1st Terrace Of River Cam By The British Geological Survey Mapperley Plains Skerry Mapplewell Coal Marble Cliff Beds [Obsolete: use TVS] Marble Cliff Limestone Member March Burn Quartzite Formation March Formation March Gravel [Obsolete: use MRCG] March Gravels Member March Gravels, Abbey Sand And Gravel,First Terrace Deposits,Etc. March Wood Formation Marchbank's Vein Marchburn Formation Marchfield Moraine Member Marchlyn Formation Marchup Grit Marchup Marine Beds Mardale Formation [Obsolete: use MRL] Mardale Sandstone Formation Mardale Tuff Formation [Obsolete: use MRL] Marden Member Mare Hill Clay [Obsolete: use MHC] Marehill Clay Member Margadale Member Margam Marine Band [Local Name: see MFMB] Margaret's Vein Margareta Volcanics Formation Margaritatus Marls [Obsolete: use EYCL] Margate Chalk [Obsolete: use MACK] Margate Chalk Formation [Obsolete: use MACK] Margate Chalk Member Margate Member [Obsolete: use MACK] Margery Coal (South Lancashire) Margery Flags Margery Mine Coal [Obsolete: use MARC] Margie Formation Margie Limestone [Obsolete: use DCML] Margie Limestone Member Margie Series [Obsolete: use MARG] Marginal deposits [Obsolete: use EXE] Marginal Limestone at Aryleive [Obsolete: use ARYL] Marginal Reef Limestones [Obsolete: use CCOE] Marine Alluvium Marine and coastal zone deposits Marine and coastal zone deposits (undifferentiated) [Obsolete: use MCZD] Marine And Estuarine Alluvium, Mainly Clay Marine And Estuarine Alluvium, Mainly Sand And Gravel Marine beach deposits [Obsolete: use BCHD] Marine Beach Deposits And Tidal Flats Marine deltaic deposits Marine deposits Marine deposits (undifferentiated) [Obsolete: use MDU] Marine Or Estuarine Alluvium Marine sediments, Holocene (undifferentiated) Marine sediments, Pleistocene (undifferentiated) Marine warp [Obsolete: use HALC] Marine Warp and Sand Marine, Estuarine and Raised Beach Deposits (Undifferentiated) Mariner Formation Market Stance Meta-Igneous Complex Market Stance Metabasic Complex [Obsolete: use MKST] Markham Coal (Nottingham) Markhams Hole Formation Markie Gneisses Markle Mains Plugs Markle Plug Marl Slate [Obsolete: use MLSL] Marl Slate Formation Marldon Limestone Member Marls and Cherty Rock [Obsolete: use STOT] Marlstone [Obsolete: use MRB] Marlstone Rock [Obsolete: use MRB] Marlstone Rock Bed [Obsolete: use MRB] Marlstone Rock Formation Marlstone Rock Formation, Whitby Mudstone Formation, Inferior Oolite Group, Great Oolite Group And Oxford Clay Formation (Undifferentiated) Marlstone Rock Member (Wessex Basin) Marlstone Rock Member [Obsolete: use MRB] Marlstone Series [Obsolete: use STA] Marly Beds [Obsolete: use HMB] Marly Drift [Obsolete: use WTTI] Marnhull and Todber Freestone [Obsolete: use TOF] Marnock Sandstone Unit Marr Bank Beds [Obsolete: use MAR] Marr Bank Formation Marros Group Marsco Granite (Western Red Hills Centre: Phase 4) Marsco Hybrids (Skye Western Red Hills Centre) Marsco Summit Gabbro (Skye Western Red Hills Centre) Marsden Formation Marsett Sandstone Formation Marsh Farm Formation Marsh Till Marshal Moor Lavas [Obsolete: use MALA] Marshall Green Coal (Northumberland And Durham) Marshall Moor Lava Member Marsupites White Limestone [Obsolete: use CLC] Martin Limestone Formation Martin Member [Obsolete: use MTNSG] Martin Sand and Gravel Member Martin Terrace Deposits [Obsolete: use MTNSG] Martley Quartzite Marton Formation Marton Scars Limestone Marwood Beds [Obsolete: use BYS] Mary Coal Mary Tavy Beds Mashie Semipelite Formation Mass movement deposits Mass movement deposits not mapped [Digital maps only] [Obsolete: use MASNM] Mass Movement Deposits Not Mapped Or Information Not Available [Digital Maps Only] Mass Movement Theme Not Available [Digital Maps Only] Mass Movement Theme Not Mapped [For Digital Map Use Only] Massive Sand Bed [Obsolete: use ETVE] Massive Sandstone [Obsolete: use HUGI] Mathon Beds [Obsolete: use MASG] Mathon Sand and Gravel [Obsolete: use MASG] Mathon Sand and Gravel Formation Matlock Group [Obsolete: use MO] Matlock Lower Basalt [Obsolete: use LRB] Matlock Lower Lava [Obsolete: use LRB] Matlock Upper Basalt [Obsolete: use URB] Matlock Upper Lava [Obsolete: use URB] Maucher Sandstone Member Mauchline Sandstone [Obsolete: use MSS] Mauchline Sandstone Formation Mauchline Volcanic Beds [Obsolete: use MVL] Mauchline Volcanic Formation Maud Pluton Maudlin Coal (Durham) Maudsyke Till Formation Maughold Banded Formation [Obsolete: use MGD] Maughold Banded Group [Obsolete: use MGD, CGA, CRMR, MHL] Maughold Banded Group and Sulby Slump Breccia [Obsolete: use IBK] Maughold Formation Mauld's Meaburn Edge Limestone Mauld's Meaburn Limestone Maureen Formation Mavis Coal (Lothian) Mawddach Group Maxwellston Mudstone Formation May Hill Group [Obsolete: use MHS] May Hill Sandstone [Obsolete: use MHS] May Hill Sandstone Group May Hill Series [Obsolete: use MHS] Maybole-Straiton-Dalmellington Mafic Intrusions Maydown Limestone Formation Mayfield Member Mcdonald Coal (Mauchline/Cumnock Area; South Ayrshire) Mcdonald Limestone Mcgildowney's Shale Member Mcgildowneys Marine Band [Obsolete: use MCYS] Mcneish Coal Meadfoot Beds [Obsolete: use BOV, HALL, LLSA, MDT, POLG, ULSA] Meadfoot Beds and Staddon Grit [Obsolete: use MDT, STG] Meadfoot Grits [Obsolete: use MDT] Meadfoot Group Meadfoot Series [Obsolete: use MDT] Meadie Schist Formation Meadow Farm Marine Band Meadow House Clay Member Meadow View Sand And Gravel Member Meadowhead Vein Meadowtown Beds [Obsolete: use MTN] Meadowtown Formation Meadowtown Formation [Duplicate: use MTN] Meadowtown Limestone Beds [Obsolete: use MTN] Meads Marls (Five) Meads Marls (Four) Meads Marls (One) Meads Marls (Six) Meads Marls (Three) Meads Marls (Two) Mealfuarvonie Sandstone Formation [Obsolete: use MVS] Mealfuarvonie Sandstone Member Mealfuorvonie Formation Meall A'Ghrianan Conglomerate Meall An Tarmachain Summit Quartz-Gabbro Intrusion Meall Buidhe Granite (Western Red Hills Centre: Phase 8) Meall Buidhe Mor Granite Intrusion Meall Buidhe Mor Quartz-Gabbro Intrusion Meall Cos Charnan Pelitic Gneiss Member Meall Dearg Formation Meall Dearg Granite [Srath Na Creitheach Centre] Meall Dubh Graphitic Schist [Obsolete: use MEDS] Meall Dubh Graphitic Schist Formation Meall Dubh Limestone [Obsolete: use MEDL] Meall Dubh Limestone Formation Meall Dubh Limestone Formation And Meall Dudh Graphitic Schist Formation (Undifferentiated) Meall Dubh Metabasite Formation Meall Dubh Quartzite [Obsolete: use MEDQ] Meall Dubh Quartzite Formation Meall Dubh Striped Pelite [Obsolete: use MEDP] Meall Dubh Striped Pelite Formation Meall Garbh Psammite And Semipelite Formation Meall Gruaim Pluton Meall Nan Con Gabbro Intrusion Meall Nan Con Net-Veined Dolerite Roof Zone Meall Odhar Conglomerate Meall Odhar Granite [Obsolete: use MLODR] Meall Odhar Intrusion Meall Odhar Sandstone Meallfuorvonie Conglomerate [Obsolete: use MECO] Mealy Grey Coal (South Staffordshire) Mearns (Albion) Glacigenic Subgroup [Obsolete] Mearns Drift Group [Obsolete: use MDR] Mearns Glacigenic Group [Obsolete: use MDR] Mearns Glacigenic Subgroup Medina River Formation Medway River Terrace Deposits 1 Medway River Terrace Deposits 2 Medway River Terrace Deposits 3 Medway River Terrace Deposits 4 Medway Valley Formation Meeching Beds Meeching Flints Meeching Marls (One) Meeching Marls (Three) Meeching Marls (Two) Meenymore Formation Megg's Linn Sandstone Meikle Bin Vent Meikle Busbie Sandstone Formation Meiklehill Coal (Central Coalfield) Meiklehill Main Coal (Glasgow Area; Central Coalfield) Meiklehill Wee Coal (Glasgow Area; Central Coalfield) Meirion Formation [Obsolete: use WALES] Melau Formation Melau Formation And Brithion Formation (Undifferentiated) Melau Tuff Formation [Obsolete: use MU] Melbourn Rock [Obsolete: use MR] Melbourn Rock Member Melbury Sandstone Member Melby Fish Beds Melby Formation [Obsolete: use MYF] Melby Rhyolite Member Melby Rhyolites [Obsolete: use MYRH] Melby Sandstone Formation Meldon Chert Formation [Obsolete: use TCH] Meldon Intrusion Meldon Shale and Quartzite Formation Meldon Slates-With-Lenticles Formation Meldon Volcanic Beds Melgund Formation [Obsolete: use MDF] Melgund Sandstone Member Mell Fell Conglomerate Melmerby Scar Limestone Formation Melt-out till Melton Mowbray Granodiorite Melton Ross Marl Meltonfield Coal (South And West Yorkshire) Meltonwood Coal (South Yorkshire) Melville Formation Melville Group Of Coals (Lothian) Menai Straits Formation Meneage Crush Zone [Obsolete: use RDBR] Meneage Formation [Obsolete: use RDBR] Meneage Olistostrome [Obsolete: use RDBR] Menei Straits Formation [Obsolete: use MEST] Menevian Beds [Obsolete: use MEN] Menevian Grit [Obsolete: use CEG] Menevian Group Menevian Series [Obsolete: use MEN] Meon Formation Mercia Mudstone (Marginal Facies) And Dolomitic Conglomerate (Undifferentiated) Mercia Mudstone Group Mercia Mudstone Group (Lower Division) [Obsolete: use BOM] Mercia Mudstone Group (Marginal Facies) Mercia Mudstone Group (Middle Division) [Obsolete: use WYM] Mercia Mudstone Group (Upper Division) [Obsolete: use BMI] Mercia Mudstone Group And Penarth Group (Undifferentiated) Mercia Mudstone Unit 1 Mercia Mudstone Unit 2 Mercia Mudstone Unit 3 Mercia Mudstone Unit 4 Mercia Mudstone Unit 5 Mercia Mudstone Unit 6 Merevale Shale Formation Merevale Shales [Obsolete: use MVSH] Merged Kent's Thick And Kent's Thin Coals Meriden Formation [Obsolete: use SAL] Meriden Formation and Tile Hill Mudstone Formation (Undifferentiated) Merion Formation Merion Till Member Merioneth And Tremadoc Rocks (Undifferentiated) Meristina Crassa Sandstone [Obsolete: use GWSA] Merlin Crags Coal Merlin Island Coal Merlin Limestone Merope Island Beds [Obsolete: use HCLS] Mersey High Terrace [Obsolete: use MSYVA] Mersey Valley Formation Mersthan Beds [Obsolete: use UGS] Merstone Clay Member Merthyr Vein Coal (South Wales) Mesograptus Shales Mesoproterozoic Rocks (Undifferentiated) Mesozoic (Triassic To Cretaceous) Rocks (Undifferentiated) Metal + Five-Quarter Coal (Northumberland) Metal Coal (Cumbria) Metal Coal (Northumberland And Durham) Metamorphic aureole around the Criffel-Dalbeattie Pluton [Obsolete: use MACD] Metamorphic Aureole, Cairnsmore Of Carsphairn Intrusion Metamorphic Aureole, Cairnsmore Of Fleet Pluton Metamorphic Aureole, Cornubian Batholith Metamorphic Aureole, Criffel-Dalbeattie Pluton Metamorphic Aureole, Northern Granite Pluton, Arran Metamorphic Aureole, Tincorn Hill Pluton Methil Dock Mussel Bed Methley Park Coal (West Yorkshire) Methley Park Rider Coal (West Yorkshire) Methlick Formation Mexborough Rock Mey Flagstone Formation Mey Sandstone Member Mey Subgroup [Obsolete: use MEY] Mica-psammite of Wadbister Ness Group [Obsolete: use WAD] Micaceous Beds [Obsolete: use EYCL] Micaceous Sand [Obsolete: use RANN] Micaceous Sand Bed [Obsolete: use RANN] Micheldean Flint Michelinia Grandis Beds [Obsolete: use BRE] Michelinia grandis Zone [Obsolete: use BRE] Mickledore Breccias Member Micklewood Beds Mickley 1 And Mickley 2 Coal (Vale Of Belvoir) Mickley 1 Coal (Nottingham) Mickley 2 Coal (Nottingham) Mickley 3 Coal (Nottingham) Mickley 4 Coal (Nottingham) Mickley 4 Sill Mickley Cannel Coal Mickley Coal (Derbyshire) Mickley Rock Mickley Thick Coal (South Yorkshire) Mickley Thin Coal (Nottingham And Derby) Mickley Thin Sill Mid (Bowhousebog) Fireclay Mid Coal (Machrihanish) Mid Drumgray Coal (Central Coalfield) Mid Hosie Limestone Mid Hosie Limestone And Main Hosie Limestone (Undifferentiated) Mid Kinniny Limestone [Obsolete: use SHLS] Mid Pentre Coal (South Wales) Mid Splint Coal Mid Yell Lens Formation Middle and Upper Chalk Undivided [Obsolete: use WHCK] Middle And Upper Devonian Limestones Middle Ardwell Beds [Obsolete: use ARD] Middle Bagshot Beds [Obsolete: use WIDS] Middle Bailey Hill Beds And Upper Bailey Hill Beds (Undifferentiated) Middle Bampton Cherts [Obsolete: use KSDC, BPLM] Middle Band Coal (West and South Yorkshire) Middle Band Marine Band [Local Name: see HNMB] Middle Band Rock Middle Band Stone Middle Basaltic Formation Middle Beryl Sandstone [Obsolete: use PNTL] Middle Bluers Coal (South Wales) Middle Border Group [Obsolete: use FELL] Middle Brent Sand Member [Obsolete: use NESS] Middle Calcareous Grit [Obsolete: use MCG] Middle Calcareous Grit Member Middle Cambrian Middle Carriden Limestone Middle Cefn-Y-Fedw Sandstone [Obsolete: use CFS] Middle Chalk Formation Middle Chalk Formation and Upper Chalk Formation (Undifferentiated) Middle Chalk Plus Uppermost (Plenus Marls) of Lower Chalk [Obsolete: use WCK] Middle Charles Coal (South Staffordshire) Middle Churnet Shales Middle Coal (Farrington Member, Somerset) Middle Coal (Radstock Member, Somerset) Middle Coal (Somerset) [Obsolete: use MLEC, MDDC] Middle Coal Measures (Dungannon, Northern Ireland) Middle Coal Measures (Scotland) [Obsolete: use MCMS] Middle Coal Measures [Obsolete: use PSMCM, SWMCM] Middle Coal Measures Formation [Obsolete: use PMCM, MCMS, SWMCM] Middle Coal Measures Formation and Upper Coal Measures Formation (undifferentiated) [Obsolete: use PMUCM, SWMUC, SMUCM] Middle Coldwell Beds [Obsolete: use CDW] Middle Crafnant Volcanic Formation Middle Crafnant Volcanic Formation And Upper Crafnant Volcanic Formation (Undifferentiated) Middle Cromhall Sandstone Formation [Obsolete: use CHSA] Middle Culm [Obsolete: use BF, SME] Middle Culm Measures [Obsolete: use BREN, SME] Middle Dalradian [Obsolete: use ARGY] Middle Dalradian Group [Obsolete: use ARGY] Middle Dalton Beds Middle Deltaic Series [Obsolete: use CLH, GRPE] Middle Devil's Bridge Formation [Obsolete: use MDB] Middle Devil's Bridge Member [Obsolete: use DBF] Middle Devonian (Undifferentiated) Middle Devonian Limestone Middle Devonian Slates Middle Dibunophyllum Limestones [Obsolete: use PNWL] Middle Dodd Dacite Formation Middle Drumgray Coal Middle Eday Sandstone [Obsolete: use MED] Middle Eday Sandstone Formation Middle Elton Beds [Obsolete: use MELB] Middle Elton Formation Middle Estuarine "Series" [Obsolete: use CLH] Middle Estuarine Series (pars) (Fox-Strangways, 1892) [Obsolete] Middle Estuarine Series [Obsolete: use GRPE] Middle Etive Rhyolite Middle Formation [Obsolete: use NANN] Middle Fuller's Earth Clay [Obsolete: use UFE] Middle Grain Vein Middle Gramscatho Beds [Obsolete: use PWER] Middle Gramscathos [Obsolete: use PWER] Middle Grit [Obsolete: use MARSD] Middle Grit Group [Obsolete: use MARSD, MGT] Middle Grits [Obsolete: use MGT] Middle Grovesend Coal (South Wales) Middle Gyffin Shale Middle Hill Andesites [Obsolete] Middle Hill Andesites And Dacites [Obsolete] Middle Holywell Beds [Obsolete: use HCK] Middle Hope Volcanic Member Middle Hosie Limestone Middle House Member Middle Ilfracombe Beds [Obsolete: use CMSL] Middle Inferior Oolite [Obsolete: use ASLS] Middle Johnstone Shell Bed Middle Jurassic And Upper Jurassic Rocks (Undifferentiated) Middle Jurassic Rocks (Undifferentiated) Middle Jurassic Series [Obsolete: use RAG] Middle Keuper Marl [Obsolete: use WYM] Middle Lias (Undifferentiated) [Obsolete] Middle Lias [Obsolete: use DYS] Middle Lias Clays [Obsolete: use DYS] Middle Lias Marls [Obsolete] Middle Lias Mudstone and Siltstones [Obsolete: use GO] Middle Lias Mudstones and Siltstones (East Midlands Shelf North) [Obsolete: use CHAM] Middle Lias Sands and Silts [Obsolete: use DYS] Middle Lias Sandy Beds [Obsolete: use DYS] Middle Lias Silts [Obsolete: use DYS] Middle Lias Silts and Clays [Obsolete: use DYS] Middle Limestone Middle Limestone Formation [Obsolete: use AG] Middle Limestone Group [Obsolete: use MLG] Middle Limestone Shales [Obsolete: use CDM] Middle Llangibby Beds Middle Llangibby Beds And Upper Llangibby Beds (Undifferentiated) Middle Longcraig Limestone Middle Lount Coal (Leicestershire) Middle Magnesian Limestone [Obsolete: use FML] Middle Member Wether Law Linn Formation [Obsolete: use LAR] Middle Nordland Unit Middle Oakwood Limestone Middle Old Red Group Middle Old Red Sandstone (Undifferentiated) Middle Old Red Sandstone [Obsolete: use BKI, INS] Middle Old Red Sandstone Conglomerate [Obsolete: use SPY] Middle Old Red Sandstone volcanic rocks and sediments of Papa Stour [Obsolete: use PSV] Middle Oolite [Obsolete: use BLO] Middle or Exeter-Type Culm [Obsolete: use CKF, BEAL] Middle Ord Sandstone Member Middle Oxford Clay [Obsolete: use SBY] Middle Oxford Clay Member [Obsolete: use SBY] Middle Part of Bed C [Obsolete: use LAR] Middle part of fossiliferous mudstones and siltstones [Obsolete: use LAR] Middle part of Sandend Group [Obsolete: use LINK, TNPL] Middle Peat Member (Breydon Formation) Middle Permian Marls [Obsolete: use EDT] Middle Portion of Crathie Point Calcareous Group [Obsolete: use CRPT] Middle Potash [Obsolete: use MPT] Middle Productive Coal [Obsolete] Middle Purbeck Beds [Obsolete] Middle Ragstones [Obsolete: use ROBA] Middle Red Sandstone [Obsolete: use HSW] Middle Rigfoot Coal Middle Sands [Obsolete: use PESG, STPTG] Middle Sands and Gravels [Obsolete: use GFSA, SEAG, CGWD, LOGG, PLSG, PFS, EVSI, THBG, EVSG] Middle Sands, Gravels and Clays [Obsolete: use TYWE] Middle Series [Obsolete: use ASR] Middle Seven-Feet Coal (South Wales) Middle Shafton Coal (West Yorkshire) Middle Shale(s) (Group) [Obsolete: use BISHM] Middle Shales Middle Skateraw Limestone [Obsolete: use BLLS] Middle Skateraw Limestone and Upper Skateraw Limestone (undifferentiated) [Obsolete: use BLLS] Middle Skelgill Beds [Obsolete] Middle Thick Coal (South Staffordshire) Middle Till Coal Middle Tuffs [Obsolete: use MPA] Middle Vein [Obsolete: use MLEC, MDDC] Middle White Limestone [Obsolete: use LGHL] Middlefield Conglomerate Formation Middles Coal (South Staffordshire) Middleton Dale Anhydrite Formation Middleton Dyke Middleton Eleven Yard Coal (West Yorkshire) Middleton Grit Middleton Grit Group [Obsolete: use MN, SAML, SILS] Middleton High Main Coal Middleton Little Coal (West Yorkshire) Middleton Main Coal (West Yorkshire) Middleton Main Top Coal (West Yorkshire) Middleton Quarry Member Middlezoy Member Middop Limestone [Obsolete: use RNGL] Midford Sands [Obsolete: use BDS] Midgley Grit Midland Valley Carboniferous To Early Permian Alkaline Basic Dyke Suite Midland Valley Carboniferous To Early Permian Alkaline Basic Sill Suite Midland Valley Carboniferous to Early Permian Basic Dyke Suite [Obsolete: use MCPAD] Midland Valley Carboniferous To Early Permian Minor Alkaline Intrusions (Other Than Dykes, Sills And Plugs) Midland Valley Early Carboniferous Felsic Sill Suite Midland Valley Glacigenic Subgroup Midland Valley Namurian To Westphalian Plugs And Vents Suite Midland Valley Sill-Complex Midland Valley Siluro-Devonian Felsic Intrusion Suite Midland Valley Siluro-Devonian Felsic Intrusion Suite [Duplicate: use MVFEI] Midland Valley Siluro-Devonian Mafic Intrusion Suite Midland Valley Siluro-Devonian Mafic Intrusion Suite [Duplicate: use MVMAI] Midlands Minor Intrusive Suite Migdale Pluton Milborne Beds [Obsolete: use FER] Milbuie Arkose Formation Milburn Beds (Group, Rocks, Series, Stage) [Obsolete: use KDF] Mildenhall Upper Sands and Gravels [Obsolete: use HLOGR] Milford Haven Subgroup Mill Bay Formation Mill Coal (Central Coalfield) Mill Coal (South Lancashire) Mill Formation Mill Hill Marine Band Mill House Farm Member [Obsolete] Mill Lane Limestone [Obsolete: use MLLL] Mill Lane Limestones Bed Mill of Forest Till Formation Mill Vein Millbuie Sandstone Group Millbuie Sandstone Member Milldale Limestone Formation Milldale Limestone Formation (Dark Lithofacies) Milldale Limestone Formation (Knoll-Reef) Milldale Limestones [Obsolete: use MI] Millepore Bed [Obsolete] Millepore Series [Obsolete: use LEBB] Miller's Dale Beds [Obsolete: use MDA] Miller's Dale Limestone Member Miller's Dale Limestones [Obsolete: use MDA] Miller's Dale Limestones Formation [Obsolete: use MDA] Millerhill Limestone Millfield Member Millgrit Coal (Bristol Area) Millin Mudstone Formation Millom Park Formation [Obsolete: use WB] Millport Cornstones Member Millstone Grit [Obsolete: use COS, MG, CFS] Millstone Grit and Upper Limestone Group [Obsolete: use SMGP] Millstone Grit Formation (Offshore) [See Also MG] Millstone Grit Group [See Also MIGR] Millstone Grit Group And Lower Coal Measures Formation (Undifferentiated) Millstone Grit Series [Obsolete: use CFS, CKN, MARR, MORRI] Millstone Point Sandstone Member Millstone Point Sandstones Member [Obsolete: use MPS] Milltown Conglomerate Formation Millyard Seam Millyeat Beds Member [Obsolete: use MYTB] Millyeat Member Milngavie Dyke Milngavie Marine Band Milngavie Sills Milnrow Sandstone Milton Abbot Formation Milton Coal (Fife) Milton Formation Milton Hill Silt Member Milton Sand [Obsolete: use MLTS] Minch Formation Minchinhampton Beds [Obsolete: use MHPL] Minchinhampton Limestone Member Mindork Formation Mine Adit Mine Entrance Excavation Mine Waste Tip (Colliery) Mine Waste Tip (Metalliferous Mineral) Mine Waste Tip (Non-Metalliferous Mineral) Minera Formation Mineral Excavation (Undivided) Mineral Excavation [Obsolete: use DMU] Mineral Extraction (Undivided) Mineral Working [Obsolete: use DMU] Minffordd Formation Minfordd Formation Minge Coal (Leicestershire) Minginish Conglomerate Formation Minn Beds Minn Sandstones Minnivey Coal (Dalmellington) Mintlyn Beds [Obsolete: use MNB] Mintlyn Member Mintlyn Sand Member [Obsolete: use MNB] Minto Hills Vents Minuntion Member Miocene Rocks (Undifferentiated) Mirk Fell Ganister Mirk Fell Ironstone Missenden Fish Beds Misty Law Trachytic Centre [Obsolete: use MLLA] Misty Law Trachytic Member Mixon Limestone-Shales Formation [Obsolete: use WDF] Mixon Limestones [Obsolete: use ECL] Moat Coal (New Cumnock, South Ayrshire) Mochrum Fell Intrusion Mochrum Hill Vent Modestus Shales [Obsolete: use TLG] Moel Hebog Sandstone Member Moel Hraddug Limestone [Obsolete: use LNML] Moel-Y-Gest Beds Moelfre Grits [Obsolete: use GLR] Moelfre Limestone Formation Moelfre Tuff Formation Moelfre Tuff Member [Obsolete: use MOT] Moelfryn Mudstone [Obsolete: use MFN] Moelfryn Mudstones Formation Moelwyn Volcanic Formation Moelwyn Volcanic Formation, Lower Member Moelwyn Volcanic Formation, Upper Member Moelyn Slates [Obsolete: use CREN] Moffat Black Shale Group [Obsolete: use MFS] Moffat Breccia Formation [Obsolete: use HTFD] Moffat Series [Obsolete: use MFS] Moffat Shale Group Moher Shale Member Mohuns Park Member [Obsolete: use MPMU] Mohuns Park Mudstone Bed Moine "Series" [Obsolete: use GCKP, LNES] Moine [Obsolete: use AUGL] Moine Series [Obsolete: use FESP, FPHS, OSHP, TTRS] Moine Supergroup [Obsolete: use LNES, WROS] Moine Thrust Zone Mylonites Complex Moine, Metamorphosed Basic Igneous Sills (Within The) Moinian (Undivided) [Obsolete: use M] Moira Breccia [Obsolete: use HPBR, MOI] Moira Formation Moira Formation [Quaternary] Moira Grits Moira Sequence [Obsolete: use MRA] Mole Marine Band [Local Name: see HTMB] Mollusca Band Molly Mountain Dolerite [Obsolete] Molyneux Marine Band [Local Name: see VDMB] Mona Gneiss Suite Mona Gneisses [Obsolete: use NMG] Monadh Dubh Sandstone Formation Monadhliath Pluton Monadhliath Pluton, Phase 1 Monadhliath Pluton, Phase 2 Monadhliath Pluton, Phase 3 Monadhliath Pluton, Phase 4 Monadhliath Schist Monadhliath Semipelite Formation Monamore Sill (South Arran) Money Head Formation Moneyacres Dyke Mongour Granite (Mount Battock Pluton) Moniack Peat Formation Monian Supergroup Monk's Bay Sandstone Formation Monkcastle Sandstone Formation Monkerton Formation Monkerton Member [Obsolete: use MKN] Monkey Coal (Dungannon) Monkey's Fold Formation [Obsolete: use BRS] Monks Park Shale Formation Monks Park Shales [Obsolete: use MPSH] Monks Water Group Monograptus Sedgwickii Shale Member Monograptus-Sedgwicki Shales [Obsolete: use DMM] Monograptus-Sedgwickii Grits [Obsolete: use CPR] Monsal Dale Beds [Obsolete: use MO] Monsal Dale Formation [Obsolete: use MO] Monsal Dale Group [Obsolete: use MO] Monsal Dale Limestone Formation Monsal Dale Limestone Formation (Dark Lithofacies) Monsal Dale Limestone Formation (Knoll-Reef) Monsal Dale Limestones [Obsolete: use MO] Monsal Dale Limestones Formation [Obsolete: use MO] Montrose Group Montrose Volcanic Formation Monument Formation Monzie Limestone And Schist Monzie Limestone and Schist Formation [Obsolete: use SFBS, SFPL, TULS] Monzodiorite Facies, Cruachan Intrusion Monzogranite Facies, Cruachan Intrusion Moor Cliffs Formation Moor Grit Moor Grit Member Moor Wood Sandstone Formation Moorcock Flags [Obsolete: use MOCS] Moorcock Sandstone Moorcock Sandstones Member [Obsolete: use MOCS] Moorhowe Formation Moorhowe Member [Obsolete: use MHO] Moorland Coal (Northumberland) Moorside Farm Formation [Obsolete: use MOF] Moorside Farm Tuff Formation Morag Anhydrite unit Morag Carbonate unit Morag Formation Morag Member Morag Sequence [Obsolete: use MORAG] Moraine [Obsolete: use MORD] Morainic deposits Morainic drift [Obsolete] Moranic drift [Obsolete: use DOD] Morar Division [Obsolete: use MORR] Morar Group Morar Group And Glenfinnan Group (Undifferentiated) Morar Schists Formation Moray Group Morchard-Type Culm [Obsolete: use BF] Mordybank Formation More Coal (Fife) Morecambe Bay Formation Moreseat Sandstone Formation Moreton Member Moreton on Lugg Member Morlas Coal (North Wales) Morley Lane Volcanic Formation Morley Muck Coal (Nottingham And Derby) Mormeal Member Mormond Hill Quartzite Member Morpeth Group Morridge Formation Morrison Formation (Undivided) [Obsolete: use LMOR, UMOR] Morrison Sequence Package 1 [Obsolete: use LMOR] Morrison Sequence Package 2 [Obsolete: use UMOR] Morrison Subsequence 1 [Obsolete: use LMOR] Morrison Subsequence 2 [Obsolete: use UMOR] Morston Formation Morston Member [Obsolete: use MORS] Morte Slates Formation Morth Brentor Beds Mortlach Graphitic Schist Formation Morton Banks Coal (West Yorkshire) Morven Conglomerate Formation Morven-Cabrach Pluton Morvern Greensand Formation Mosedale Andesite Formation [Obsolete: use BFA] Mosedale Andesites [Obsolete: use MOA] Mosedale Gabbros Mosedale Peat Bed Moss Cannel Coal (North Staffordshire) Moss Cannel Marine Band [Local Name: see MTMB] Moss Coal (New Cumnock) Moss Coal (North Staffordshire) Moss Side Member Mosser Slates [Obsolete: use KST] Mosser Striped Slates [Obsolete: use KST] Mosser-Kirkstile Slates [Obsolete: use KST] Moston Marine Band [Local Name: see SOMB] Mottled Clay (Reading Formation) [Obsolete: use RB] Mottled Clays [Obsolete: use SKU] Mottled Member (Lower Llandovery) [Obsolete: use MMB] Mottled Mudstone [Obsolete: use MMU] Mottled Mudstone Member , Wenlock Age Mottled Mudstone Member, Llandovery Age Mottled Mudstones [Obsolete: use UMM, LMM] Mottled Sandstone, Upper [Obsolete] Mottled Shale [Obsolete: use GCOE, WNB] Mottled Shale of Dog Crag Type [Obsolete: use PHT] Mottled Tuff [Obsolete: use GCOE] Moughton Whetstones [Obsolete: use AUF] Mouldy Hills Gravel Formation Moulzie Burn Intrusion Mount Ararat Chert [Obsolete: use TCH] Mount Ararat Chert Formation [Obsolete: use COH] Mount Battock Pluton Mount Blair Psammite And Semipelite Formation Mount Pleasant Group Mount Pleasant Group (pars) [Obsolete: use WWYM] Mount Wise Shell Bed Mountain Coal (South Wales) Mountain Limestone [Obsolete: use CLWYD] Mountain Mine Of Mellor Mountsorrel Complex Mountstewart Formation Mourne Mountains Granite Mourne Mountains Granite (G1) Mourne Mountains Granite (G2) Mourne Mountains Granite (G3) Mourne Mountains Granite (G4) Mourne Mountains Granite (G5) Mousa Formation Mousegill Marine Band Mousegill Marine Beds Moy Burn Palaeosol Formation Moy Lower Till Member [Obsolete: use ATTI] Moy Paraglacial Complex Member [Obsolete: use ATTI] Moy Pluton Moy Sandstone Formation Moylgrove Group Moyne Moor Lava Member Moyne Moor Lavas [Obsolete: use MMLA] Moysnaght Limestone And Shale [Obsolete] Much Wenlock Limestone (Knoll-Reef) Much Wenlock Limestone Formation Muck Dyke Muck-Ardnamurchan Swarm Muckle Burn Conglomerate Formation Muckle Ossa Sandstone Muckle Roe Intrusion Muckross Sandstone Formation Mudstone I [Obsolete: use SIM] Mudstone III [Obsolete: use BCMU] Mudstones of Tarn Moor [Obsolete: use TMF] Mugdock Dyke Mugdock Lava Member Mugdock Lavas [Obsolete: use MGLA] Muir's Vein Muirhouse Marine Band Muirkirk Claud Coal (Ayrshire) Muirkirk Ell Coal Muirkirk Fifty Fathom Coal (Ayrshire) Muirkirk Forty Fathom Coal (Ayrshire) Muirkirk Four Foot Coal Muirkirk Low Ell Coal [Obsolete: use CULE] Muirkirk Main Limestone [Obsolete: use HAWL] Muirkirk Major Coal (Ayrshire) Muirkirk Musselband Coal (Ayrshire) Muirkirk Nine Foot Coal Muirkirk Seven Fathom Coal Muirkirk Seven Foot Coal Muirkirk Seventeen Fathom Coal (Ayrshire) Muirkirk Six Foot Coal Muirkirk Ten Fathom Coal (Ayrshire) Muirkirk Thirty Inch Coal Muirkirk Thirty Six Fathom Coal (Ayrshire) Muirkirk Three Dirt Coal (Ayrshire) Muirkirk Three Foot Coal Muirkirk Twenty Fathom Coal (Ayrshire) Muirkirk Twenty Three Fathom Coal (Ayrshire) Muirkirk Under Limestone [Obsolete: use BBLS] Muirkirk Wee Limestone Mulatto [Obsolete: use HBG] Mulderie Intrusion Mulfran Beds [Obsolete: use TYF] Mulfran Formation Mulgrave Shale Member Mulindry Bridge Slate Formation Mull Central Complex Mull Central Lavas Formation Mull Dyke-Swarm Mull Hill Formation Mull Lava Group Mull of Logan Formation Mull Of Oa Phyllites [Obsolete] Mull Plateau Lavas Formation Mullach Dubh Phyllite Formation Mullach Geal Gabbro Intrusion Mullach Nan Carn Member [Duplicate: use TCDC] Mullach Nan Carn Member [Obsolete: use TCBL] Mullach Nan Coirean Pluton Mullach Sgar Dolerite-Microgranite Intrusion-Swarm Mullaghbane Cornstone Member [Obsolete] Mullaghcarn Formation Mullaghcarn Formation [Duplicate 1: use MCA] Mullaghcarn Formation [Duplicate 2: use MCA] Mullaghcarn Group [Obsolete: use MCA] Mullaghcarn Schists [Obsolete: use MCA] Mullaghmore Sandstone Formation Mullaghnabuoyah Beds [Obsolete] Mulloch Hill Conglomerate Formation Mulloch Hill Formation [Obsolete: use MLHS] Mulloch Hill Sandstone Formation Mullyfa Formation Mullynagowan Sandstone Member Multeadh Sandstone Formation [Obsolete: use MUSM] Multeadh Sandstone Member Munday's Hill Phosphatic Sandstone Formation Mundesley Diamicton [Obsolete: use BGTI] Mundesley Member Mundesley Sand Member Mundesley Sands [Obsolete: use MYSA] Muness Phyllites Formation Mungle Shale Mupe Member Mupe Member And Ridgeway Member (Undifferentiated) Murchisoni Ash [Obsolete] Murchisoni Beds Murlough Bay Coal B (Ballycastle, Northern Ireland) Murlough Bay Coal C (Ballycastle, Northern Ireland) Murlough Bay Coal D (Ballycastle, Northern Ireland) Murlough Bay Coal E (Ballycastle, Northern Ireland) Murlough Bay Coal F (Ballycastle, Northern Ireland) Murlough Bay Coal G (Ballycastle, Northern Ireland) Murlough Bay Coal Group [Obsolete: use MUSH] Murlough Bay Coal H (Ballycastle, Northern Ireland) Murlough Bay Coal X (Ballycastle, Northern Ireland) Murlough Bay Coals (Ballycastle, Northern Ireland) [Obsolete: use MUSH] Murlough Bay Formation (Carboniferous) [Obsolete: use MUSH] Murlough Bay Formation (Neoproterozoic) Murlough Bay Schists [Obsolete] Murlough Shale Formation Murray Formation Murray Sequence [Obsolete: use MRY] Murrayshall Limestone Murton Crags Sandstone Member Murton Formation Muschelkalk Halite Member Musselband Ironstone Musselburgh Diamond Coal Musselburgh Fifteen Foot Coal Musselburgh Jewel Coal Musselburgh Nine Foot Coal Musselburgh Rough Coal Musselburgh Seven Foot Coal Musselburgh Splint Coal (Midlothian) Musters Coal (Nottingham) Mwmffri Sandstone Member Mwmffri Sandstone Member [Duplicate: use MWM] Mwmfri Sandstone Member [Obsolete: use MWM] Mydrim Limestone Formation Mydrim Shales Formation Mylor Beds [Obsolete: use MRSL] Mylor Series [Obsolete: use MRSL, PBR] Mylor Slate Formation Mylor Slates [Obsolete: use MRSL, PBR] Mynheer Coal (Fife) Mynydd Bach Formation Mynydd Bonafon Formation Mynydd Carreg Spilitic "Series" [Obsolete] Mynydd Eilian Formation Mynydd Gader Volcanic Series [Obsolete: use OF] Mynydd Myddfai Sandstone Formation Mynydd Nefyn Quartz-Microdiorite Pluton Mynydd Penarfynydd Layered Sill Mynydd Rhiw Rhyolitic Tuff Member [Obsolete: use MRRT] Mynydd Tir-Y-Cwmwd Granophyric Microgranite [Obsolete: use MTGM] Mynydd Tir-Y-Cwmwd Microgranite Mynydd Y Gader Volcanic Group [Obsolete: use LAV] Mynydd y Garn Formation Mynydd-Rhiw Rhyolitic Tuff Member Mynydd-Tarw Ash [Obsolete: use MYTT] Mynydd-Tarw Group Mynydd-Tarw Tuff Member Mynydd-Y-Gader Group [Obsolete: use OF] Mynydd-Y-Gader Rhyolitic Group [Obsolete: use LAV] Mynydd-y-Gareg Limestone [Obsolete: use OHL] Mynydd-y-Garreg Limestone [Obsolete: use MYGL] Mynyddislwyn Coal (South Wales) Mynytho Common Microgranite Mynytho Common Riebeckite Microgranite [Obsolete: use MCRM] Mynytho Volcanic Group [Obsolete: use LIG] Myoch Formation Mythop Halite Formation [Obsolete: use MSA] Mythop Halite Member Mythop Salts [Obsolete: use MSA] Mytiloides Beds Mytton Beds [Obsolete: use MY] Mytton Flags [Obsolete: use MY] Mytton Flags Formation Nab End Sandstone Naburn Sand Member Nairn Sandstone [Obsolete: use KISA] Nairn Sandstone Formation [Obsolete: use KISA] Nairn Sandstone Member Nairn Sandstones [Obsolete: use KISA] Nairnside and Clava Beds [Obsolete: use CVM, NCB] Nairnside Sandstone Formation Nameless Coal (Douglas) Namurian Rocks (Undifferentiated) Namurian To Stephanian Rocks (Undifferentiated) Nan Bield Formation [Obsolete: use MRL] Nanhoron Granophyric Microgranite [Obsolete: use NGM] Nanhoron Microgranite Nanhoron Suite Nansen Formation Nansen Member [Obsolete: use NANN, STAT] Nant Achlas Silstones Nant Brianne Formation Nant Cerdin Tuff Member Nant Coal (North Wales) Nant Ffrancon Formation [Obsolete: use NFR] Nant Ffrancon Group [Obsolete: use NFR] Nant Ffrancon Subgroup Nant Hir Formation [Obsolete: use CSW] Nant Hir Mudstone [Obsolete: use CSW] Nant Hir Mudstones [Duplicate: use NHM] Nant Hir Shales [Obsolete: use CSW] Nant Pig Mudstone [Obsolete: use NYB] Nant Pig Mudstones [Obsolete: use NYB] Nant Saethon Keratophyric Dykes Nant y Gledryd Member Nant-Hir Shales [Obsolete: use CSW] Nant-Y-Bache Group [Obsolete] Nant-Y-Big Formation Nant-Y-Coy (Cae) Beds Nant-y-Gamar Limestone Member Nant-Y-Moch Beds [Obsolete: use NF] Nant-Y-Moch Formation Nant-Y-Moch Group [Obsolete: use NF] Nant-Ysgollen Mudstone Formation [Obsolete: use NYG] Nant-Ysgollen Mudstone Formation and Nantglyn Flags Formation (Undifferentiated) [Obsolete: use NYNG] Nant-Ysgollen Shales [Obsolete: use NYG] Nant-Ysgollon Mudstone Formation Nant-Ysgollon Mudstone Formation and Nantglyn Flags Formation (Undifferentiated) Nantannog Formation Nantglyn Flags [Obsolete: use NGF] Nantglyn Flags Formation Nantglyn Flags Formation and Nant-Ysgollon Mudstone Formation (Undifferentiated) [Duplicate: use NYNG] Nantglyn Mudstone Formation Nantmel Mudstones (Formation) (Laminated Hemipelagites Unit, 1) Nantmel Mudstones (Formation) (Laminated Hemipelagites Unit, 2) Nantmel Mudstones (Formation) (Laminated Hemipelagites Unit, 3) Nantmel Mudstones (Formation) (Laminated Hemipelagites Unit, Undifferentiated) Nantmel Mudstones Formation Nantmor Group Napes Needle Member [Obsolete: use LME] Nappa Shale and Limestone Member [Obsolete: use HOM] Napton Coal Nar Clay Formation Nar Valley Clay [Obsolete: use NARC] Nar Valley Formation Nar Valley Freshwater Beds Narnells Grit Narrow Vein [Obsolete: use NRV] Narrow Vein Formation [Obsolete: use NRV] Narrow Vein Mudstone Formation Narrowdale Limestone [Obsolete: use HP] Nash Scar Limestone Nattrass Gill Hazle Sandstone Naunton Clay [Obsolete: use HFD] Navan Group Navigation Beds Navigation Coal (Kilsyth) Navigation Flint Navigation Hardgrounds Navigation Marls (One) Navigation Marls (Two) Naworth Bryozoa Band Naworth Limestone Nayley Coal (South Lancashire) Neaeran Beds [Obsolete: use SHHB] Neals Ing Formation Neath Valley Formation Nechells Breccia [Obsolete: use CLT] Necropolis Sill Neeans "Group" Needs Law Plug Nefyn Cluster Neilead Semipelite Formation Neilson Shell Bed Neilston Blackband Ironstone Neilston Lava Member Neilston Lavas [Obsolete: use NNLA] Neilston Steam Coal (Kilsyth) Nellfield Marl Nemagraptus Gracilis Shales [Obsolete: use LRM] Nene Valley Formation Neocomian Strata [Obsolete: use SPC] Neogene And Quaternary Rocks (Undifferentiated) Neogene Rocks (Undifferentiated) Neoproterozoic Basic Minor Intrusion Suite Neoproterozoic Metamorphosed Granitic Suite Of Shetland Neoproterozoic Metamorphosed Mafic And Ultramafic Minor Intrusion Suite Of Shetland Neoproterozoic Rocks (Undifferentiated) Neptune Formation Neriby Formation Nesbister Limestone Neseuretus Beds Nesfield Sandstone Ness Assemblage Ness Formation Ness Sub-Unit [Obsolete: use NESS] Net Pool Mudstone Nether Coal Nether Lount Coal (Leicestershire) Nether Main Coal (South Derbyshire) Netherfield Coal Netherfield Limestone [Obsolete: use DYLS] Netherfield Limestone Bed [Obsolete: use DYLS] Netherhill Coals (Bewcastle) Netherly Diorite Netherton Breccia [Obsolete: use NTN] Netherton Breccia Formation Netherton Formation [Obsolete: use NTN] Netherton Thick Coal Netherwitton Coals (Northumberland) Netherwitton Limestone Netherwood Coal (Central Coalfield) Nethybridge Psammite Formation Netley Heath Beds Nettle Crags Tuff and Lavas (part) [Obsolete: use STHI] Nettle Crags Tuff Formation [Obsolete: use NCT] Nettle Crags Tuff Member Nettlebed Formation Nettleber Sandstone Nettleton Pycnodonte Bed Nettleton Stone Nevis Member [Obsolete: use BUSA] New Abbey Till Member New Aberdour Siltstone Formation New Accommodation Coal (South Lancashire) New Coal (Somerset) New Coal (South Lancashire) New Cumnock Blackband Coal (South Ayrshire) New Cumnock Diamond Coal New Cumnock Eight Foot Coal New Cumnock Five Foot Coal (South Ayrshire) New Cumnock Four Foot Coal (South Ayrshire) New Cumnock Musselband Coal (South Ayrshire) New Cumnock Three Foot Coal New Glencrieff Vein New Harbour Formation New Hards Coal New House Limestone New House Sandstone Formation [Obsolete: use SWLCM] New Inn Member [Obsolete: use NIT] New Inn Member and Ailstone Member (Undifferentiated) (Warwickshire Avon) [Obsolete: use NIAT] New Inn Sand and Gravel Member New Inn Sand And Gravel Member And Ailstone Sand And Gravel Member (Undifferentiated) (Warwickshire Avon) New Inn Terrace Deposits (Warwickshire Avon) [Obsolete: use NIT] New Jet Amber Coal (South Lancashire) New Jet Amber Mine Coal [Obsolete: use NJAC] New Jordan Hill Blackband Ironstone New Lynch Coal (South Wales) New Main Coal (Leicestershire) New Main Rider Coal (Leicestershire) New Mains Intrusion (?Sill) New Mine Coal (Birmingham) New Mine Coal (Coalbrookdale) New Mine Coal (North Staffordshire) New Mine Coal (South Staffordshire) New Mine Coal Rock New Mine Fireclay New Mine Ironstone (South Staffordshire) New Moss Coal (North Staffordshire) New Orleans Conglomerate Formation New Pit Beds [Obsolete: use NPCH] New Pit Chalk Formation New Pit Chalk Formation and Holywell Nodular Chalk Formation (undifferentiated) [Duplicate: use HNCK] New Pit Chalk Member [Obsolete: use NPCH] New Pit Chalk Member and Holywell Chalk Member (Undifferentiated) [Obsolete: use NHCK] New Pit Marls (One) New Pit Marls (Three) New Pit Marls (Two) New Red Sandstone Sequence or Supergroup [Obsolete: use NRS] New Red Sandstone Series [Obsolete: use NRS] New Red Sandstone Supergroup New Rock Group [Obsolete] New Shipping Formation New Smiths Coal (Bristol Area) New Vein [Obsolete: use NEWC] Newark Gypsum Newbury No.1 Coal (Somerset) Newbury No.1 Vein [Obsolete: use NN1C] Newbury No.2 Coal (Somerset) Newbury No.2 Vein [Obsolete: use NN2C] Newbury No.3 Coal (Somerset) Newby Mill Limestone Newby Wiske - Aldwark Esker Member Newcastle Formation [Duplicate 1: use NCL] Newcastle Formation [Obsolete: use HA] Newcastle Group [Obsolete: use NCL] Newcastle-Under-Lyme Series ; Newcastle Beds [Obsolete: use NCL] Newer Drift [Obsolete: use CALI, NBRG] Newer Till [Obsolete: use HDTI] Newfaulds Coal Newforte Breccia Formation Newhaven Chalk Formation Newhaven Chalk Member [Obsolete: use NCK] Newhey Mudstone Newhill Coal (South and West Yorkshire) Newington Coal Newlands Beds [Obsolete: use NWF] Newlands Farm Formation Newlands Formation (lower part) [Obsolete: use GWC] Newlands Group [Obsolete: use NWF] Newlands Pentamerus Grits [Obsolete: use NWF] Newlands Series [Obsolete: use NE, PNO, NEWL, DAI] Newlands Subgroup Newmead Sandstone Formation Newmill Breccia Formation Newry Granodiorite Complex Newry Granodiorite Complex Phase 1 Newry Granodiorite Complex Phase 2 Newry Granodiorite Complex Phase 3 Newside Arenite [Obsolete: use NWA, CARM, WGAT] Newside Arenite Member Newside Arenite Member And Eastgate Sandstone Member (Undifferentiated) Newstead Rock Newton Burn Gravel Bed Newton Chert Formation [Obsolete: use TCH] Newton Chert Member (of Brendon Formation) [Obsolete: use TCH] Newton Chert Member [Obsolete: use NCH] Newton Clay Member Newton Coal (Glasgow) Newton Coal (Northumberland) Newton Fells Grit [Obsolete: use HIS] Newton Heath Sandstone Newton Limestone Newton Manor Formation [Obsolete: use NEM] Newton Manor Sandstone Formation Newton St Cyres Breccia Formation Newtownbutler Limestone Member Newtownstewart Formation Newtownstewart Quartzite Group [Obsolete] Niand(T) Limestone Niarbyl Flags [Obsolete: use NBY] Niarbyl Formation Nidderdale Shale Niddrie Vexhim Coal (Lothian) Nieuw Zeeland Gronden Formation Night Coal (Somerset) Nightingale Member Nine Feet Coal (Ingleton) Nine Feet Coal (Warwickshire) Nine Foot Coal (North Wales) Nine-Feet Coal (South Wales) Nine-Inch Coal (Somerset) Nithsdale Kames Nitshill Sandstone Niveo-aeolian deposits No 5 Terrace (Deposits) [Obsolete: use PERT] No Coal (Forest Of Dean) No.0 Marine Band No.0 Marine Band Limestone No.1 Comrie Blackband Ironstone No.1 Jersey Coal Of West Fife No.1 Llantwit Coal No.1 Marine Band No.1 Marine Band Limestone No.1 Rhondda Coal (South Wales) No.1 Rhondda Rider Coal (South Wales) No.1 Terrace (Deposits) [Obsolete: use BRET] No.10 Coal (Somerset) No.10 Vein [Obsolete: use N10C] No.11 Coal (Somerset) No.2 Blackband Ironstone No.2 Comrie Blackband Ironstone No.2 Jersey Coal Of West Fife No.2 Llantwit Coal No.2 Marine Band No.2 Marine Band Limestone No.2 Rhondda Coal (South Wales) No.2 Terrace (Deposits) [Obsolete: use WAT] No.3 Comrie Blackband Ironstone No.3 Llantwit Coal No.3 Marine Band Group No.3 Rhondda Coal (South Wales) No.3 Terrace Deposits [Obsolete: use NIT] No.4 Marine Band Group No.4 Terrace (Deposits) [Obsolete: use CRTD] No.5 Coal (Somerset) No.5 Marine Band Group No.5 Seam No.5 Vein [Obsolete: use NO5C] No.6 Marine Band Group No.7 Coal (Somerset) No.7 Vein [Obsolete: use NO7C] No.9 Coal (Somerset) No.9 Vein [Obsolete: use NO9C] Nob End Rock Noblehouse Lava Member Nochty Semipelite And Limestone Formation Nod Glas [Obsolete: use NOG] Nod Glas Black Shale [Obsolete: use NOG] Nod Glas Formation Noddsdale Volcaniclastic Beds [Obsolete: use NODV] Noddsdale Volcaniclastic Member Nodular Beds [Obsolete: use NOL] Nodular Limestone Member Nodular Member [Obsolete: use NOL] Nodular White Limestone [Obsolete: use BBLS] Nodule Bed [Obsolete: use CBG] Non-carbonate salts Non-Coal Mining [Obsolete: use DMU] Non-Urban Development [Obsolete] None. None: Includes Kirkcolm, Galdenoch And Blackcraig Formations [Obsolete: use BRHL] None: Includes Portpatrick Formation and Glenwhargen Formation [Obsolete: use SCAU] Nook House Sandstone Nook House Shale Nor Gill Sandstone Formation Norber Formation Nordelph Peat Nordland Group Nordmarkite Swarm ('Nordmarkite' Swarm) Nordon Formation Nordon Slate [Obsolete: use SAH] Nordon Slate Formation [Obsolete: use NOSL] Norfolk Chalk Norham Till Formation Noritic dykes of the Scourie Dyke Swarm [Obsolete: use BMCN] North Atlantic Igneous Superprovince North Berwick Abbey Plug North Berwick Law Plug North Berwick Member [Obsolete: use NBPY] North Berwick Pyroclastic Member North Britain Glacigenic Group [Obsolete: use CALI] North Britain Late Carboniferous Tholeiitic Suite North Britain Late-Carboniferous Tholeiitic Dyke Swarm [Obsolete: use CSTD, NETD] North Britain Palaeogene Dyke Suite North Britain Palaeogene Plug Suite North Britain Palaeogene Sill Suite North Britain Siluro-Devonian Calc-Alkaline Dyke Suite North Britain Siluro-Devonian Plug And Vent Suite North Campsie Linear Vent-System North Campsie Pyroclastic Member North Campsie Tephra Deposits (Associated with the North Campsie Linear Vent System) [Obsolete: use NCPY] North Charnwood Diorite North Charnwood Diorites [Obsolete: use NCHD] North Coal (Lothian) North Curry Sandstone Member [Obsolete: use AS] North Denes Formation North Esk Formation [Not Same As NES] North Esk Formation [Obsolete: use NSK] North Esk Group North Greens Coal (Lothian) North Greens Limestone [Obsolete: use BLLS] North Greens Sandstone North Grimston Cementstone Member North Head Member North Hill Dacites North Hill Dacites [Obsolete] North Holm Gneiss Formation North Leigh Sand and Gravel Member North Meadow Sandstone North Pennine Glacigenic Subgroup North Sannox Grits [Obsolete: use DCNS] North Sannox Grits Formation North Sannox Lava Formation North Sea Coast (Albion) Glacigenic Subgroup North Sea Coast Glacigenic Subgroup North Sea Drift [Obsolete: use NSCA, NSG] North Sea Drift Formation (part of) [Obsolete: use BERE] North Sea Drift Formation [Obsolete: use HPGL, OVSD, SMCL] North Sea Group [Dutch Classification - reserved for possible future use] North Seaton Sandstone North Star Dyke [Obsolete] North Welsh Boulder Clay [Obsolete: use ERYG] North-East Grampian Basic Suite North-East Grampian Granitic Suite (Ordovician) North-West Grampian Granitic Suite (Ordovician) [Obsolete: use NWGRA] North-West Highlands Alkaline Plutonic Suite North-West Highlands Minor Intrusion Suite Northam Beds [Obsolete: use BFF, WDHO] Northam Formation [Obsolete: use BFF] Northampton Ironstone Northampton Ironstone Beds [Obsolete: use NS] Northampton Ironstone Series [Obsolete: use NS] Northampton Sand (lower part) [Obsolete: use NS] Northampton Sand [Obsolete: use NS] Northampton Sand Formation Northampton Sand Ironstone [Obsolete: use NS] Northern Drift [Obsolete: use FL] Northern Drift Formation [Obsolete: use FL, SBRY] Northern England Devonian Plutonic Suite Northern England Dinantian Intrusions Suite Northern England Late Carboniferous Tholeiitic Dyke-Swarm Northern Granite Pluton, Arran Northern Highlands and Argyll Catchments Subgroup Northern Marginal Zone (Rum Central Complex) Northern Marginal Zone (Rum Central Complex) [Duplicate: use RUNM] Northern Marginal Zone, Am Mam Breccias (Rum Central Complex) Northern Marginal Zone, Am Mam Breccias (Rum Central Complex) [Duplicate: use RUNMA] Northern Porphyritic Felsite (Skye Western Red Hills Centre) Northhampton Sand Ironstone [Obsolete: use NSI] Northmaven Complex [Obsolete: use NMVN] Northmaven Pluton Northmoor (Gravel) Formation [Obsolete: use NO] Northmoor Member [Obsolete: use NO] Northmoor Member, Lower Facet [Obsolete: use NO1A] Northmoor Member, Upper Facet [Obsolete: use NO1B] Northmoor Sand and Gravel Member Northmoor Sand And Gravel Member, Lower Facet Northmoor Sand And Gravel Member, Upper Facet Northton Formation Northumberland Low Main Coal (Northumberland) Northumbria Catchments Subgroup Northumbria Till Formation [Obsolete] Northwest Grampian Granitic Subsuite Northwest Highlands (Albion) Glacigenic Subgroup [Obsolete] Northwest Highlands Glacigenic Subgroup Northwich Halite Formation [Obsolete: use NWHF] Northwich Halite Member Northwick Formation [Obsolete: use WLLEV] Norton Coal (Leicester, South Derbyshire, Nottingham, Derby, South Yorkshire) Norton Marine Band [Local Name: see AMMB] Norwegian Classification System [Root term only - reserved for possible future use] Norwegian Trench Formation Norwich Brickearth [Obsolete: use COTI] Norwich Chalk Norwich Crag [Obsolete: use NCG] Norwich Crag Formation Norwich Crag Formation And Red Crag Formation (Undifferentiated) Norwich Diamicton [Obsolete: use COTI] Norwick Graphitic Schist Formation Norwick Hornblendic Schist Type 1 Norwick Hornblendic Schist Type 2 Norwick Hornblendic Schist Type 3 Norwick Phyllite Formation Not Applicable Not Available Not Defined [Obsolete] Not Entered Not Formally Named Previously Not previously named, included as part of Nettle Crags Tuffs and Lavas [Obsolete: use FGR] Notgrove Freestone [Obsolete: use NGRV] Notgrove Member Notgrove Oolite [Obsolete: use NGRV] Nothe Clay [Obsolete: use HSM] Nothe Clay Member Nothe Formation [Obsolete: use NGT, RECF] Nothe Grit Member Nothe Grit Member [Duplicate: use NGT] Nottage Crag Grit Nottingham Castle Formation [Obsolete: use NTC, CHES] Nottingham Castle Sandstone Formation [Obsolete: use CHES] Now part of Druim An Fhuarain Member? [Obsolete: use DCSH] Nuculoceras nuculum Marine Band (1 of 3) Nuculoceras nuculum Marine Band (2 of 3) Nuculoceras nuculum Marine Band (3 of 3) Nuculoceras nuculum Marine Band [See Also: E2C2, E2C3, E2C4] Nuculoceras stellarum Marine Band Nuculoceras stellarum Marine Band [Duplicate: use E2C1] Nun Volcanics Formation Nuneaton Marine Band [Local Name: see AGMB] Nurseries Glacigenic Formation Nursling Sand Member Ny Garvain Formation [Obsolete: use NGN] Ny Garvain Member Oadby Till (Lias-rich) [Obsolete: use ODTL] Oadby Till (Trias-Rich) [Obsolete: use ODTT] Oadby Till [Obsolete: use ODT] Oadby Till Member Oadby Till Member (Lias-rich) Oadby Till Member (Trias-rich) Oak Bank Grit Oakdale Clay Member Oakdale Sand Member Oakeley Mynd Formation Oakenshaw Rock Oakley Beds [Obsolete: use OKLY, ELR] Oakley Blackband Ironstone Oakley Clay [Obsolete: use OKLY] Oakley Coal Oakley Marl Member Oakley Member Oakley Upper Coal Oakport Limestone Formation Oaks Rock Oakshaw Coal (Bewcastle) Oakshaw Limestone Oakshaw Sandstone Oakshaw Tuff Oakswood Conglomerate [Obsolete: use YWOC] Oakswood Conglomerate Member Oaktree Clay [Obsolete: use KC] Oaktree Soil [Obsolete: use KC] Oaktrow Sandstone Oakwood Coal (Northumberland) Oakwood Formation [Obsolete: use OKWDG] Oakwood Glacigenic Formation Oakwood Limestone Oatland Sandstone Oatlands Pluton Observatory Group [Obsolete: use OBG] Observatory Sandstone Formation Obtusum-Oxynotum Clays (upper part) [Obsolete: use CHAM] Ochil Volcanic Formation Ochr-y-Foel Limestone Formation [Obsolete: use LNML] Ockbrook Sand and Gravel Member Ockendon Member Ockran Sandstone Formation Octofad Sandstone Formation Oddicombe Breccia [Obsolete: use OBR] Oddicombe Breccia Formation Odhar Gravel Formation [Obsolete: use ODGR] Odhar Gravel Member Odhar Peat Formation [Obsolete: use AOPT] Odin Sandstone Member Offa Formation Offrwm Volcanic Formation Offshore Artificial Deposits Not Mapped [For Digital Map Use Only] Offshore Bedrock Not Mapped [For Digital Map Use Only] [Obsolete: use BEDOF] Offshore Bedrock Theme Not Mapped [For Digital Map Use Only] Offshore Dumping Grounds Offshore Mass Movement Deposits Not Mapped [For Digital Map Use Only] [Obsolete: use MASOF] Offshore Mass Movement Theme Not Mapped [For Digital Map Use Only] Offshore Superficial Deposits Not Mapped [For Digital Map Use Only] [Obsolete: use SUPOF] Offshore Superficial Theme Not Mapped [For Digital Map Use Only] Offshore Waste Tip Oglis Till [Obsolete] Ogof Fach Member Ogof Hen Formation Ogofgolchfa Group Ogwen Group Ogwr Limestone Oil Shale Group, Upper [Duplicate: use URO] Oil-Shale [Obsolete: use CUD] Oil-Shale Group [Obsolete: use SYG] Oisean Formation Oisean Sequence [Obsolete: use OIS] Oisean Subsequence [Obsolete: use OIS] Okehampton Sandstone Group [Obsolete: use CKF, BEAL] Okraquoy Gritty Quartzite (Formation) Old Accommodation Coal (South Lancashire) Old Bridge Coal (Northumberland) Old Bridge Limestone Old Bridge Sandstone Old Coal (South Lancashire) Old Glencrieff Vein Old Harbour Vent Old Hill Marl [Obsolete: use ETM] Old Hythe Limestone Member [Obsolete: use OLHL] Old Hythe Semipelite Member Old Hythe Till Formation Old Hythe Till Formation [Obsolete: use OHT] Old Lawrence Rock Old Lizard Head Series Old Lizard Head Series (Mica-Schist and Greenschist) [Obsolete: use ZMS] Old Mine Coal [Obsolete: use OLDC] Old Mine Fireclay Old Nore Beds Old Nore Marl Old Park Coal (South Staffordshire) Old Red Sandstone [Obsolete: use BOBC, BED] Old Red Sandstone of Rhynie and Cabrach Outliers [Obsolete: use RHN] Old Red Sandstone Supergroup Old Red Sandstone, Upper [Obsolete: use OYS] Old storm beach [Obsolete: use OSTB] Old Town Marl Oldbury and Avonmouth Levels Formation Oldbury Farm Sandstone Formation Oldbury Shales Older alluvium [Obsolete: use ALV1] Older blown sand Older coastal zone deposits of Flandrian age, undifferentiated [Obsolete: use CZDU] Older coastal zone deposits of Holocene age, undifferentiated Older Drift [Obsolete: use ALBI] Older glacial deposits Older glaciofluvial deposits Older glaciofluvial deposits (undifferentiated) [Obsolete: use OGFD] Older glaciolacustrine silt and clay Older head Older lacustrine deposits [Obsolete: use LDE1] Older littoral sand and gravel Older marine and estuarine alluvium Older river deposits Older river gravel Older River Gravel Formation [Obsolete: use SNTCA] Older river sand and gravel Older storm beach [Obsolete: use OSTB] Older storm beach deposits Older tidal flat deposits Older till Oldham Great Coal (South Lancashire) Oldham Great Mine Coal [Obsolete: use OGCO] Oldhamstocks Sill Oldhaven Beds [Obsolete: use OH] Oldhaven Member Oldstead Oolite Member Oligocene Rocks (Undifferentiated) Olive Coal (South Lancashire) Olive Mine Coal [Obsolete: use OLCO] Olivine gabbro dykes of the Scourie Dyke Swarm [Obsolete: use SMOG] Olivine-Glomercrystic Gabbro Raft Zone Ollaberry 'Series' Omagh Sandstone Group One Barrow Breccia [Obsolete: use SQBR] One Barrow Breccia Member [Obsolete: use SQBR] Onecote Sandstone Member [Obsolete: use ONS] Onecote Sandstones Onny Shales [Obsolete: use OSH] Onny Shales Formation Oolite Group (part) [Obsolete: use ABO] Oolite Group [Obsolete: use CLD] Oolite Group Dolomite Oolite Marl [Obsolete: use SQAR] Oolite Marl Member [Obsolete: use SQAR] Oolite Marl Series [Obsolete: use SQAR] Oolitic and Nodular Beds [Obsolete: use FRN] Oolitic Ironstone [Obsolete: use FRN] Oolitic limestone in Lower Calcareous Grit [Obsolete: use OSTD] Opencast (Colliery) Opencast (Metalliferous Mineral) Opencast (Non-Metalliferous Mineral) Openshaw Coal (South Lancashire) Openshaw Mine Coal [Obsolete: use OPSC] Openshaw Sandstone Orbliston And Deanshillock Members Of The Teindland Formation Orcadia Formation Orcadian Old Red Conglomerate [Obsolete: use SPY] Orcadian Old Red Sandstone Supergroup [Obsolete: use ORS] Orchard Beds Orchard Coal Orchard Limestone Ord Ban Subgroup [Obsolete: use KNCG] Ord Fundlie Pluton Ord Hill Conglomerate Ordan Shuas Psammite Formation Ordley Sandstone Ordovician Rocks (Undifferentiated) Ordovician Rocks And Silurian Rocks (Undifferentiated) Ordovician Shales (Undifferentiated) Ordovician Undivided [Obsolete: use ORD] Orebank Sandstone Oreton Limestone [Obsolete: use ORTL] Oreton Limestone Formation Oreton Limestone Formation and Lower Limestone Shale Group (Undifferentiated) Organic deposits Orionastraea Placenta Band Orknagable Formation Orkney Devonian Minor Intrusion And Volcanic Suite Orkney Sandstone Group [Obsolete: use EDY] Orkney Swarm Ormesby Clay [Obsolete: use OC] Ormesby Clay Formation [Obsolete: use OC] Ormesby Clay Member Ormskirk Sandstone [Obsolete: use OMS] Ormskirk Sandstone Formation [Obsolete: use HEY, SELF] Ornatella Beds Oronsay Greywacke Formation Orrin Formation Orrisdale Formation Orroland Formation [Obsolete: use ORR] Orroland Group [Obsolete: use ORR] Orroland Limestone Beds [Obsolete: use ORR] Orroland Member Orthis Confinis Flags [Obsolete: use CNF] Orthis Limestone [Obsolete: use DEL] Orton Group [Obsolete: use FRLI] Orton Group And Alston Group (Undifferentiated) Orusia Shales Formation Orval Member Orwell Member Osborne Beds [Obsolete: use OSB] Osborne Limestone Osborne Member Osdale Formation Osdale Group [Obsolete: use OSDA] Osgodby Formation Osgodby Formation And Oxford Clay Formation (Undifferentiated) Osmington Oolite [Obsolete: use MTOL] Osmington Oolite Formation Osmington Oolite Formation And Clavellata Formation (Undifferentiated) Osmington Oolite Series [Obsolete: use COO, OSS, STFD, STOU] Ostracod Limestones [Obsolete: use KML] Ostrea Acuminata Beds Ostrea Beds [Obsolete: use WCT] Ostrea Hebridica Beds [Obsolete: use DTM] Otley Shell Bed Otter Bank Formation (Permo-Triassic) Otter Bank Formation (Quaternary) Otter Bank Sequence [Obsolete: use OTBK] Otter Sandstone [Obsolete: use HEY, OS] Otter Sandstone Formation [Obsolete: use HEY] Otter Sandstones [Obsolete: use OS, HEY] Otterswick Psammite Formation Oughtboy Burn Member Oulart Villa Limestone Formation Oulton Beds [Obsolete: use OULT] Oulton Clay Member Ousdale Arkose [Obsolete: use OA] Ousdale Arkose Formation Ousdale Mudstone Formation Ouse Valley Formation Ouse-Nene Catchments Subgroup Ousel Nest Grit Outer Bytownite Gabbros (Cuillin Centre: Unit C) Outer Bytownite Gabbros, Phase 1 (Cuillin Centre: Unit C) Outer Bytownite Gabbros, Phase 2 (Cuillin Centre: Unit C) Outer Bytownite Gabbros, Phase 3 (Cuillin Centre: Unit C) Outer Bytownite Troctolites (Cuillin Centre) Outer Bytownite Troctolites, B1 (Cuillin Centre) Outer Bytownite Troctolites, B2 (Cuillin Centre) Outer Bytownite Troctolites, B3 (Cuillin Centre) Outer Gabbros (Cuillin Centre) Outer Gabbros, A1 (Cuillin Centre) Outer Gabbros, A2 (Cuillin Centre) Outer Gabbros, A3 (Cuillin Centre) Outer Garnfor Microgranodiorite Intrusion Outer Hebrides Thrust Zone Mylonites Complex Outer Layered Gabbro Zone Outer Porphyritic Monzogranite Facies, Starav Intrusion Outer Quartz-Gabbro Zone Outer Silver Pit Formation Outer Starav Granite [Obsolete: use OSTAR] Outer Unlayered Gabbro Zone Outlet Mudstone Member Outwash deposits Outwoods Breccia Member Outwoods Member [Obsolete: use OTB] Outwoods Shale Formation Outwoods Shales [Obsolete: use OWSH] Ovenstone Coal Over Main Coal (South Derbyshire) Overseal Marine Band [Local Name: see AGMB] Overstrand Formation [Obsolete: use BRLA] Overstrand Glacigenic Formation [Obsolete: use OVSD] Overthorpe Coal (Oxfordshire) Overton Gas Coal Overton Lava Member Overton Lavas [Obsolete: use OVLA] Overtoun Sandstone Formation [Obsolete: use OVS] Overtoun Sandstone Member Overwater Formation [Obsolete: use OV] Overwater Siltstone Formation Overwood Slate Member Ovingdean Marl Owencam Formation Owengarve Calcareous Formation Owenkillew Sandstone Group Owl Head Marine Band Oxbow Coal (West Yorkshire) Oxendale Member [Obsolete: use OXT] Oxendale Tuff Oxford Clay (Skye) Oxford Clay [Obsolete: use SFSH] Oxford Clay and Kellaways Formations (Undifferentiated) [Obsolete: use OXKL] Oxford Clay Bituminous Member Oxford Clay Formation Oxford Clay Formation and West Walton Formation (Undifferentiated) Oxford Clay Silty Member Oxford Clay Top Member Oxford Clay, Corallian and Kimmeridge Clay [Obsolete: use SFSH] Oxford Limestone [Obsolete: use OXL] Oxford Limestone Member Oxfordian Deposits Oxroad Group Tuffs [Obsolete: use GUL] Oxwich Head Limestone Formation Oystermouth Beds [Obsolete: use OB] Oystermouth Formation P P12 Coal (South Derbyshire) P13 Coal (South Derbyshire) P14 Coal (South Derbyshire) P15 and P16 Coal (South Derbyshire) (Undifferentiated) P15 Coal (South Derbyshire) P16 Coal (South Derbyshire) P17 Coal (South Derbyshire) P18 Coal (South Derbyshire) P19 Coal (South Derbyshire) P20 Coal (South Derbyshire) P21 Coal (South Derbyshire) P22 Coal (South Derbyshire) P23 And P24 Coal, (South Derbyshire) (Undifferentiated) P23 Coal (South Derbyshire) P24 Coal (South Derbyshire) P25 Coal (South Derbyshire) P26 Coal (South Derbyshire) P27 And P28 Coal, (South Derbyshire) (Undifferentiated) P27 Coal (South Derbyshire) P28 Coal (South Derbyshire) P29 Coal (South Derbyshire) P30 Coal (South Derbyshire) P31 Coal (South Derbyshire) P32 Coal (South Derbyshire) P33 And P34 Coal, (South Derbyshire) (Undifferentiated) P33 Coal (South Derbyshire) P34 Coal (South Derbyshire) P35 And P36 Coal, (South Derbyshire) (Undifferentiated) P35 Coal (South Derbyshire) P36 Coal (South Derbyshire) P37 Coal (South Derbyshire) P38 Coal (South Derbyshire) P39 And P40 Coal, (South Derbyshire) (Undifferentiated) P39 Coal (South Derbyshire) P40 Coal (South Derbyshire) P41 Coal (South Derbyshire) P42 And P43 Coal, (South Derbyshire) (Undifferentiated) P42 Coal (South Derbyshire) P43 Coal (South Derbyshire) P44 Coal (South Derbyshire) Pabay Shale Formation Pabba Beds [Obsolete: use PABS] Pabba Shale [Obsolete: use PABS] Pabba Shale Formation [Obsolete: use PABS] Padarn Ignimbrite [Obsolete: use PDT] Padarn Rhyolite (Ignimbrite) [Obsolete: use PDT] Padarn Rhyolite [Obsolete: use PDT] Padarn Tuff Formation Paddy End Member [Obsolete: use PER] Paddy End Rhyolite [Obsolete: use PER] Paddy End Tuff Member Paisley Clay Member Paisley Formation [Obsolete: use PAIS] Paisley Ruck Fault Zone Palacecraig Blackband Ironstone Palacecraig Coal (Airdrie; Central Coalfield) Palaeo-Landslip, Age Unknown Palaeo-Landslip, Mid-Devonian Palaeocene and Eocene Flint Gravels Palaeocene And Eocene Rocks (Undifferentiated) Palaeocene Rocks (Undifferentiated) Palaeogene And Neogene Rocks (Undifferentiated) Palaeogene Rocks (Undifferentiated) Palaeogene Rocks (Undifferentiated) [Duplicate: use PGU] Palaeoproterozoic Rocks (Undifferentiated) Palaeoproterozoic To Palaeozoic Rocks (Undifferentiated) Palaeosol (Quaternary Only) Palaeozoic or Quaternary Rock and Sediment (Undifferentiated) [Offshore Only] Palaeozoic Rocks (Undifferentiated) Palagonitic Tuffs and Plant Beds [Obsolete: use POHY] Palate Bed Pale Green and Grey Marls [Obsolete: use BAN] Pale Group [Obsolete] Pale Limestone Pale limestone within Blair Atholl Subgroup [Obsolete: use DRPL] Pale Quartzitic Sandstones [Obsolete: use WWAT] Pale Shales [Obsolete: use CER, DOL] Pale Suite of Ben More [Obsolete: use BENM] Paleocyclus Band Paleogene (Undifferentiated) [Obsolete: use PGU] Palm Lodge Shales Palustrine Unit [Obsolete: use DAR] Pandy Ash [Obsolete: use PAT] Pandy Tuff [Obsolete: use PAT] Pandy Tuff Formation Pant Formation Pant Limestone Pant Mawr Sandstone Member Pant Y Darren Formation Pantrhydydwr Coal (South Wales) Pantydarren Beds Pantydarren Formation Panwood Coal [Obsolete: use FFCO] Papa Group Papa Stour Volcanic Formation Parade Vent Paradoxica Bed Paralic Unit [Obsolete: use STRM] Pared Mawr Member Parishholm Conglomerate Formation Park Breccia Park Coal (South Lancashire) Park End Breccia Formation Park Farm Clay Member Park Gate Rock Park Hill Limestone Member Park Hill Member Park Hill Quartzite [Obsolete: use PAH] Park Limestone [Obsolete: use PKL] Park Limestone Formation Park Limestone Formation And Urswick Limestone Formation (Undifferentiated) Park Style Limestone Member Park Wood Sandstone [Obsolete: use DUCS] Park Wood Sandstones [Obsolete: use DUCS] Park Yard Coal (South Lancashire) Parker Mine Coal (Manchester Area) Parkgate And Tupton Roof Coal (Vale Of Belvoir) Parkgate Coal (West and South Yorkshire and Nottingham) Parkgate Rock Parkgate Sill Parkhead Sandstone Parkhouse Beck Limestone Parkhouse Marine Band Parkstone Clay Member Parkstone Sand Member Parrett Valley Formation Parrot Coal (Bristol Area) Parrot Coal (Dailly) Parrot Coal (Northumberland) Parrot Rough Coal (Coal Measures) (Lothian) Parrot Rough Coal (Limestone Coal Formation) Parry Sandstones [Obsolete: use PNTL] Parsonage Sandstone Part of Ben Suardal Formation [Obsolete: use LONL] Part of Strath Suardal and Beinn An Dubhaich Formation [Obsolete: use KILL] Part of the 'Sedimentary Group' of the Lower Old Red Sandstone [Obsolete: use ISP] Part Of The Formally Defined Silsden, Samlesbury And Hebden Formations Part of the Moine Psammites [Obsolete: use ABIP, CDHP] Part of the Schists within the Moine Series [Obsolete: use CNSS] Partan Craig Vent Parts of Mounthouse Formation of Sutherland [Obsolete: use MVG] Parts of Tayburn Formation [Obsolete: use MVG] Parts Port Erin Formation, Santon Formation, Ny Garvain Formation [Obsolete: use LNN] Parva Formation (upper part) [Obsolete: use BAN] Parwyd Gneiss Parys Green Beds [Obsolete: use MYEI] Parys Group [Obsolete: use MYEI] Parys Mountain Volcanic Formation Passage Beds (Formation) [Obsolete: use ABI] Passage Beds (Of Dudley) [Obsolete] Passage Beds [Obsolete: use BOOC, SGBK, CLGB, MCH, UND, YED, MYS] Passage Beds Member [Obsolete: use YED] Passage Formation Passage Formation (Wenlock Series) Passage Group (Undivided) [Obsolete: use TWN] Passage Group [Obsolete: use MKS, PGP] Passage Group Lavas [Obsolete: use TVL] Passage Group Volcanic Formation [Obsolete] Passage or Middle Series [Obsolete: use ASR] Pasture Coal (South Lancashire) Pasture Mine Coal [Obsolete: use PAMC] Pasture Mine Marine Band [Local Name: see LGMB] Pastures Coal (South Lancashire) Pathhead Beds [Obsolete: use PDB] Pathhead Blackband Ironstone Pathhead Formation Pathhead Four Foot Six Inch Coal (New Cumnock) Pathhead Lower Marine Band Pathhead Marine Bands Pathhead Soft Coal (New Cumnock) Pathhead Thick Coal Pathhead Upper Marine Band Patna Coal Patna Coal Group Patna Limestone [Obsolete: use HUR] Patna Sandstone Patrick Burn Formation Pattack Gneisses Pattack Till Formation Pattison Sandstone Pavey Ark Breccia Member Pavey Ark Member [Obsolete: use PAV] Paxford Gravel [Obsolete: use PA] Paxford Gravel Member Paynes Coal (South Wales) Pea Grit Equivalent [Obsolete: use CLCL] Pea Grit Facies Pea Grit Series [Obsolete: use CRKY] Pea Stack Gneiss Peacehaven Beds Peacehaven Marl Peach Quarry Limestone [Obsolete: use PQL] Peach Quarry Limestone Member Peacock Coal (Lothian) Peacock Coal (North Staffordshire) Peacock Coal (Somerset) Peacock Coal (South Lancashire) Peacock Coal (South Wales) Peak Forest Limestone [Obsolete] Peak Forest Sill Peak Limestone Group Peak Mudstone Member Peak Shales [Obsolete: use PMDS] Peasah Wood Limestone Peat Peat and Alluvium (Undifferentiated) Peat and submerged and buried forest [Obsolete] Peat flow Peat Rig Formation Pebble Bed + Pisolite + Lower Trigonia Bed + Upper Trigonia Bed + Urchin Marls [Obsolete: use HWLS] Pebble Bed Group [Obsolete: use CHES] Pebble Beds [Obsolete: use BSP, CHES] Pebble Gravel [Obsolete: use PBGR, STGR] Pebble Gravel Formation [Obsolete: use NBED, STGR, WHGR] Pebbly Clay And Sand Pebbly Quartzite And Quartz-Schist Of Dalmally [Obsolete] Pebbly Quartzite Group [Obsolete] Pebidian Supergroup Pebidian Supergroup [Duplicate: use PN] Pebidian Volcanic "Series", Undivided [Obsolete: use PN] Pebidian Volcanic Complex (Undifferentiated) [Obsolete: use PN] Pebidian Volcanic Complex [Obsolete: use PN] Pebidian Volcanic Series [Obsolete: use PN] Peckmill Sand Member Pecten Ironstone Member Pecten Ironstone Seam Peel Group Peel Hall Rock Peel Knowe Sandstone Member Peel Limestone Peel Place Sand And Gravel Member Peel Sandstone Peghorn Limestone Pegmatitanhydrit Formation Pegwell Formation Pegwell Marls [Obsolete: use PGWS] Pegwell Silt Member Pegwn Mudstones [Obsolete: use NYG] Pelaw Clay [Obsolete: use PELC] Pelaw Clay Member Pelaw Member Peldar Dacite Breccia Peldar Porphyritic Dacite Peldar-Type Porphyroid [Obsolete: use PLD] Pelew Clay Pelite and semipelite within Struan Flags [Obsolete: use DUNS] Pelite Of Glenesk Peltura Punctata Beds Pemberton Five Foot Coal (South Lancashire) Pemberton Four Foot Coal (South Lancashire) Pemberton Rock Pemberton Two Foot Coal (South Lancashire) Pemberton Yard Coal (South Lancashire) Pembroke Limestone Group Pen Bwlch Tuff [Obsolete: use PBT] Pen Bwlch Tuff Formation [Obsolete: use PBT] Pen Bwlch Tuff Member Pen Hill Head Pen y Bedw Tuff Member Pen y Fan Formation Pen y Foel Formation Pen y gadair Volcanic Formation Pen y Gader Group [Obsolete: use PGA] Pen y Gader Volcanic Group [Obsolete: use PGA] Pen Y Garnedd Limestone [Obsolete: use PGD] Pen Y Gelli Grit [Obsolete: use PYG] Pen Y Graig Ash [Obsolete: use PGT] Pen ychain Rhyolitic Complex Pen-Plaenau Siltstone Formation Pen-Y-Garnedd Limestone Formation Pen-Y-Gelli Formation Pen-Y-Glog Grit Pen-Y-Graig Tuff Member Pen-y-holt Limestone Formation Pen-Y-Lan Mudstone Pen-Y-Parc Formation Penamnen Tuff Formation Penard Conglomerate Formation Penarth Group Penarth Group (Marginal Facies) Penarth Group And Lias Group (Undifferentiated) Penarwel Drive Beds [Obsolete: use BWG] Penarwel Shales [Obsolete: use NOG] Penbedw Formation Pencerrigtewion Member Penchford Limestone Penchrise Burn Beds Penclawdd Coal (South Wales) Pencleuch Shale Formation Pencnwc West Formation Pencraig Sill Penda Formation Penderyn Oolite Member Pendine Conglomerate Pendine Oolite [Obsolete: use ABO] Pendle Grit Formation (Lancaster District) [Obsolete: use PENDL] Pendle Grit Formation [Obsolete: use PG, PNDS] Pendle Grit Member Pendle Grit Member And Warley Wise Grit Member (Undifferentiated) Pendle Grits [Obsolete: use PG] Pendle Shale Formation [Obsolete: use SLSH] Pendleside Limestone [Obsolete: use PDL] Pendleside Limestone Formation Pendleside Sandstone Member Pendleside Sandstones Member [Obsolete: use PNDS] Pendleton Formation Pendower Formation Penfro Formation [Obsolete: use POTI] Penfro Till Formation Penistone Flags Penistone Green Coal (South Yorkshire) Penkill Flags Penkill Formation [See: PKF] Penkill Greywackes Penkill Mudstone Formation Penlan Coal (South Wales) Penlan Quartzite [Obsolete: use BGM] Penllwyn Oolite Member Penmaen Burrows Limestone [Obsolete: use BHL, FPL] Penmaen Burrows Limestone Formation [Obsolete: use BRL, BHL, FPL] Penmaen Dewi Shale Formation Penmaen Formation [Obsolete: use PMN] Penmaen Tuff Formation Penmon Limestone Formation [Obsolete: use LGHL] Penmynydd Formation Penmynydd zone of metamorphism [Obsolete: use LSZ] Pennan Hill Vent Pennan Sandstone Formation Pennant "Series" [Obsolete: use PES] Pennant Formation (Forest of Dean) [Obsolete: use PES] Pennant Group (South Wales) [Obsolete: use PES] Pennant Measures [Obsolete: use PES] Pennant Sandstone Formation Pennant Sandstone Group [Obsolete: use PES] Pennant Sandstones [Obsolete: use PES] Pennard Conglomerate Formation Pennard Sand Member [Obsolete: use DYS] Pennard Sands [Obsolete: use PENS] Pennine Coal Measures Group Pennine Coal Measures Group And Warwickshire Group (Undifferentiated) Pennine Drift [Obsolete: use THT] Pennine Lower Coal Measures Formation Pennine Lower Coal Measures Formation And Pennine Middle Coal Measures Formation (Undifferentiated) Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation (Undifferentiated) Pennine Middle Coal Measures Formation Pennine Middle Coal Measures Formation And Pennine Upper Coal Measures Formation (Undifferentiated) Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation (Undifferentiated) Pennine Upper Coal Measures Formation Pennine Upper Coal Measures Formation and South Wales Upper Coal Measures Formation (Undifferentiated) Penny Farm Gill Dolomite Formation [Obsolete: use PFD] Penny Farm Gill Formation Penny Nab Member Penny Pieces Coal (South Wales) Penny's Wood Limestone Member Pennyearth Ironstone Pennyhill Coal (Northumberland And Durham) Pennyland Sandstone Formation [Obsolete: use PYSM] Pennyland Sandstone Member Pennystone Coal Pennystone Ironstone (South Staffordshire) Pennystone Marine Band [Local Name: see VDMB] Pennyvenie High Coking Coal Pennyvenie Low Coking Coal Pennyvenie Splint Coal Pennyvenie Two Foot Seven Inch Coal Pennyvenie Two Foot Three Inch Coal Penpethy Beds [Obsolete: use DLBS, TVY] Penrhiw Group Penrhiw Series [Obsolete: use PVP] Penrhiwmoch Member Penrhos Member Penrhos Slates [Obsolete: use PNR] Penrhyn Bodeilas Granodiorite Intrusion Penrhyn Du Member Penrith Sandstone Formation Pensarn Basaltic Andesite Pensford No.1 Coal (Bristol Area) Pensford No.2 Coal (Bristol Area) Pensford No.3 Coal (Bristol Area) Penston Splint Coal [Obsolete: use UDIC] Penstone Ironstone Penstrowed Grits Formation Penstrowed Group [Obsolete] Pentamerus Beds [Obsolete: use PEB] Pentamerus Sandstone Formation Pentire Pillow Lavas [Obsolete] Pentire Slates Pentland Formation Pentland Hills Volcanic Formation Pentland Shale Penton Coals Penton Limestone Penton Limestone [Duplicate: use PNLS] Pentre "Series" (Group) Pentre Chert Formation Pentre Coal (South Wales) Pentre Formation Pentre Formation [Duplicate: use PTRE] Pentre Rider Coal (South Wales) Penwhapple Burn Shale Member Penwhapple Formation Penwhapple North Group [Obsolete: use DAI, STNG] Penwhapple South Group [Obsolete: use NEWL] Penwyllt Limestone [Obsolete: use OHL] Penyraber Mudstone Formation Penyscallen Coal (South Wales) Pepper Box Marls (One) Pepper Box Marls (Two) Peralkaline Rhyolite Swarm Perelle Gneiss Perfeddnant Ashes [Obsolete: use CGU] Permian Basal Breccia Permian Basal Lavas [Obsolete: use CNB] Permian Basal Sandstone Formation (Tyrone) [Obsolete] Permian Breccias (Undivided) [Obsolete: use DU, LOC] Permian Breccias or Marls [Obsolete: use MOI] Permian Evaporite A [Obsolete: use ABE] Permian Evaporite B [Obsolete: use BBE] Permian Evaporite C [Obsolete: use CBE] Permian Evaporite D [Obsolete: use DBE] Permian Evaporites (Undifferentiated) Permian Lower Marls [Obsolete: use CDF] Permian Marls [Obsolete: use BELF, ZG] Permian Middle Marls [Obsolete: use EDT] Permian Rocks (Undifferentiated) Permian Rocks (Undifferentiated) And Sherwood Sandstone Group Permian Rocks And Triassic Rocks (Undifferentiated) Permian sandstone [Obsolete: use CS] Permian Shales Of North West [Obsolete] Permian Siltstone Member Permian To Cretaceous Rocks (Undifferentiated) Permian To Jurassic Rocks (Undifferentiated) Permian Upper Marls [Duplicate: use UPM] Permian Upper Marls [Obsolete: use ROX] Permian Upper Sandstone [Obsolete: use GGH] Perna Beds Member [Obsolete: use PRNA] Perna Member Perpetual Coal (Lothian) Perrink Coal (Somerset) Persabus Member Pershore Member [Obsolete: use PERT] Pershore Sand and Gravel Member Pershore Terrace Deposits (Warwickshire Avon) [Obsolete: use PERT] Perthshire Quartzitic "Series" [Obsolete] Pesah Wood Limestone Peterborough Member Peterel Shell Beds Peterhead Pluton Peterlee Member [Obsolete: use PESG] Peterlee Sand And Gravel Formation Peterlee Sands [Obsolete: use PESG] Petershill Limestone Petester Granite Petherwin Beds [Obsolete: use PWB] Petherwin Formation Petit Tor Breccia Member Petrockstow River Terrace Deposits, 1 Member Petrockstow River Terrace Deposits, 1 Member [Duplicate: use PET1] Petrockstow River Terrace Deposits, 2 Member Petrockstow River Terrace Deposits, 3 Member Petrockstow River Terrace Deposits, 4 Member Petrockstow River Terrace Deposits, 5 Member Petrockstow Valley Formation Pettigo Limestone Group [Obsolete: use BAL] Pettycur Limestone Peveril Point Member Phillips Member Phillipsiana Beds, Bourguetia Beds and Witchellia Grit [Obsolete: use ROBA] Phoebe Sandstone Unit Pholadomya Grit [Obsolete: use CG] Phosphate Bed [Obsolete: use CBG] Phynis Mudstone Member Phynis Shales [Obsolete: use PHS] Pibroch Member [Obsolete: use PIBR] Pibroch Sandstone Member Pickersett Edge Grit Pickwell Down Sandstones [Obsolete: use PDS] Pickwell Down Sandstones Formation Picton Point Marine Band [Local Name: see AGMB] Pigdon Limestone Pike Hill Limestone Pilkembare Coal (Fife) Pilken Coal Pilkin Coal (Fife) Pillaton Chert Formation [Obsolete: use TCH] Pillmour Vent Pillow Lava Division [Obsolete: use SHV] Pilot Inn Marl Pilton Beds (pars) [Obsolete: use DDC] Pilton Beds [Obsolete: use PLT] Pilton Mudstone Formation Pilton Shales (pars) [Obsolete: use DDC] Pilton Shales [Obsolete: use PLT] Pilton Shales Formation [Obsolete: use PLT] Pilton Shales Group [Obsolete: use PLT] Pin And Crown Coal (North Wales) Pinbain Formation [Obsolete: use PIN] Pinbain Lava Formation Pindale Tuff Pinder Park Ironstone Pink Pool Limestone Pinkie Four Foot Coal (Lothian) Pinkie Six Foot Coal (Lothian) Pinkie Three Foot Coal (Midlothian) Pinnacle Howe Tuff Member Pins Ironstone Pinskey Gill Beds [Obsolete: use PNKG] Pinskey Gill Formation Pinstane Conglomerate [Obsolete: use PNC] Pinstane Conglomerate Member Pipe Rock [Obsolete: use PPR] Pipe Rock Formation [Obsolete: use PPR] Pipe Rock Member Pipe-Clay Division [Obsolete: use POOL] Piper Coal Piper Formation Piper Formation Lower Sand Member [Obsolete: use PIBR] Piper Sand [Obsolete: use PIPR] Piper's Cross Coal Piper's Cross Limestone Pisgah Hill Limestone Pishlinn Burn Gravel Formation Pisolite Facies [Obsolete: use STP] Pisolitic Beds [Obsolete: use STP] Pistyll Gwyn Mudstones Formation Pistyll Gwyn Mudstones Member [Obsolete: use PIG] Pistyllgwyn Member Pistyllion Formation Pit (Superficial Deposits) Pit Waste Tip (Superficial Deposits) Pitlochry Schist [Obsolete: use DCPS] Pitlochry Schist Formation Pitlurg Calcareous Flag Formation Pitlurg Farm Till [Obsolete: use PGTI] Pitlurg Farm Till Formation Pitmain Semipelite Member Pitscow Member [Obsolete: use POWSG] Pitscow Sand and Gravel Formation Pittencrieff Blackband Ironstone (Fife) Pittendreich Limestone Pittendreich Limestone [At NO 578 614] [Obsolete: use CMPL] Pittenweem Beds [Obsolete: use PMB] Pittenweem Formation Pittenweem Harbour Lingula Band Pittenweem Marine Band Pitts Head "Tuffs" [Obsolete: use PT] Pitts Head Tuff Formation Pityoulish Formation Place Fell Group [Obsolete: use WLT] Plagiostoma Beds [Obsolete: use RLS] Plains Skerry Plankey Shell Band Plann Blackband Ironstone Planorbis Beds [Obsolete: use WCT] Plantation Sike Sandstone Plantinhead Flags [Obsolete: use PLF] Plantinhead Formation [Obsolete: use PLF] Plantinhead Member Plas Brereton Formation Plashetts Coal Plashetts Dun Limestone Plastic Clay Beds [Obsolete: use ABKF] Plastirion Member Plateau Beds And Quartz Conglomerate Group (Undifferentiated) Plateau Beds Formation [Obsolete: use PNYF] Plateau Drift [Obsolete: use FL] Plateau Edge Formation Plateau Gravel [Obsolete] Plateau gravel and marine gravel [Obsolete: use WOOTG] Plateau Gravels [Obsolete: use SNTCA] Plateau Group [Obsolete: use MULP] Plattendolomit Formation Platyschisma Bed [Obsolete: use PTY] Platyschisma Shale Member Plean Limestones Plean No.1 Coal Plean No.1 Limestone Plean No.2 Limestone Plean No.3 Limestone Pleinmont Metasediments Pleistocene sands and gravels (Undifferentiated) [Obsolete: use PSGU] Pleistocene Sediments (Undifferentiated) Plenus Marl [Obsolete: use PLMA] Plenus Marls [Obsolete] Plenus Marls Member Plenus Marls Member (Northern Province) [Obsolete: use PLMA] Pleshetts Dun Limestone Plessey Coal (Northumberland) Pleurotomaria Beds Plewland Sandstone Formation Plewlands Formation [Obsolete: use PLWS] Pliemont Formation Pliocene gravels [Obsolete: use BUG] Pliocene Rocks (Undifferentiated) Pliocene-Pleistocene Gravels And Crags Pliocene-Pleistocene gravels and crags (Undifferentiated) [Obsolete: use PPGC] Plodder Coal (South Lancashire) Plodder Mine Coal [Obsolete: use PLM] Plump Bridge Till Member Plumpe Farm Sand Member Plumpe Sand And Gravel Formation Plungar Ironstone [Obsolete: use LGFL, STBL] Plungar Limestone Formation Plymouth Limestone [Obsolete: use FAR, PRK, PYL] Plymouth Limestone Formation Plympton Slate Formation (in part) [Obsolete: use SAH] Plympton Slate Formation [Obsolete: use TPT] Plynlimmon Grey Shales Plynlimon Glacigenic Formation Po House Tuff Formation Po House Tuffs (part) [Obsolete: use DCT] Po House Tuffs [Obsolete: use PHT] Pocket Deposits [Obsolete: use BTON] Pocklington Gravel Formation Point Garry Sill Point Of Ayre Formation Polcrebo Gravels Polesworth Formation [Obsolete: use CHES] Polglaze Formation Polhote Marine Band Poll A' Mhuilt Member Pollock Stone Coal Polquhairn Limestone Polshill Pluton Poltallan Member Poltimore Mudstone Member Polygenetic Conglomerate Polyphant Intrusion Polzeath Slate Formation Polzeath Slates Pomeroy Granite Poneil Coal Ponesk Burn Formation Ponfeigh Gas Coal (Douglas) Ponfeith Back Coal Pont ar llechau Formation Pont-Ceunant Ash [Obsolete: use PCE] Pont-y-ceunant Ash Pont-Yr-Hafod Group Pontefract Rock Pontesford Shales [Obsolete: use POSH] Pontesford Shales Formation Pontfenni Formation Pontybodkin Divided Coal (North Wales) Pontybodkin Mountain Coal (North Wales) Poole Formation Poole Formation, Marsh Farm Formation And Earnley Sand Formation (Undifferentiated) Poolscar Formation Poolscar Member [Obsolete: use PSR] Poolvash Limestone Poor Robin Ironstone (South Staffordshire) Poortown Intrusion Poppingstone Sandstone Poppleton Glaciofluvial Formation [Obsolete: use POPP] Poppleton Glaciofluvial Member Porcellaneous Limestone (Carboniferous, North West) Porcellanous Bed Porphyroid of Sharpley Type [Obsolete: use SYP] Port An T-Seilich Member Port Askaig Tillite [Obsolete: use DBPT] Port Askaig Tillite Formation Port Beag Member Port Beag Till Formation Port Calliagh Chalk Formation Port Calliagh Chalk Member [Obsolete: use PCC] Port Edgar Ash Port Ellen Phyllite [Obsolete: use PEPH] Port Ellen Phyllite Formation Port Logan Formation Port More Formation Port More Sill [Obsolete] Port Na Spaniagh Member Port Of Brims Sandstone Member Port Seton - Spittal Dyke Port Vasgo Microdiorites Port-an-Righ Ironstone Member Port-an-Righ Siltstone Member Portavadie Formation [Obsolete: use PRTS] Portavadie Sand And Silt Member Portavo Formation Portencorkrie Intrusion Portencross Beds [Obsolete: use -3621] Portencross Formation [Obsolete: use POCR] Portencross Sandstone Formation Porteous Band Portfield Formation Portfield Formation And Haverford Mudstone Formation (Undifferentiated) Portgower Boulder Beds Member Porth Cynfor Formation Porth Gain Beds [Obsolete: use OGH] Porth Llanlleiana Formation Porth Llauog Formation Porth Maen Melyn Volcanic Formation Porth Meudwy Beds [Obsolete: use PMU] Porth Meudwy Formation Porth Meudwy Member [Obsolete: use PMU] Porth Orion Limestone Porth Pridd Formation [Obsolete: use LLBG] Porth Swtan Formation Porth Trecastell Formation Porth Trefadog Formation Porth Wen Group Porth y Corwgl Member Porth y Nant Formation Porth Y Nant Microgranodiorite Intrusion Porth Yr Ogof Formation [Obsolete: use SWTN] Porth yr Ysgraf Ophiolitic Formation Porth-y-Mor Formation Porthcovan Slate Formation [Obsolete: use TVS] Porthdinllaen Spilitic Formation Porthkerry Formation [Obsolete: use PO] Porthkerry Member Porthleven Breccia Member Porthmadog Formation [Obsolete: use DYN] Porthtowan Formation Porthygwichiad Formation Portishead Subgroup Portland Beds [Obsolete: use HADD, PL, PLND] Portland Chert Member Portland Cherty Member [Obsolete: use POCH] Portland Clay Portland Formation (Wiltshire, Oxfordshire and Buckinghamshire) [Obsolete: use PL] Portland Freestone Member Portland Group Portland Group and Purbeck Limestone Group (Undifferentiated) Portland Limestone Formation [Obsolete: use POST] Portland Oolite [Obsolete: use POST] Portland Purbeck [Obsolete: use WHS] Portland Rock [Obsolete: use POST] Portland Rocks [Obsolete: use PL] Portland Sand [Obsolete: use POSA, PLS, PSND, WAR] Portland Sand Formation Portland Sand Formation [Duplicate: use POSA] Portland Sand Member (Wiltshire, Oxfordshire and Buckinghamshire) [Obsolete: use POSA] Portland Stone [Obsolete: use POST] Portland Stone Formation Portland Stone Member (Wiltshire, Oxfordshire and Buckinghamshire) [Obsolete: use POST] Portland Strata [Obsolete: use PL] Portna Loub Coal Portnagree Conglomerate Portnaloub Coal (B) Portobello Formation Portobello Vein Portoto Vein Portpatrick Formation Portpatrick Formation And Glenwhargen Formation (Undifferentiated) Portpatrick Group [Obsolete: use PPF] Portree Hyaloclastite Formation Portree Shale [Obsolete: use PEE] Portree Shale Formation Portrush Chalk [Obsolete: use PRC] Portrush Chalk Formation Portrush Chalk Member [Obsolete: use PRC] Portrush Sill Portscatho Beds [Obsolete: use GRO, PORO] Portscatho Formation Portscatho Series [Obsolete: use PORO] Portsdown Chalk Formation Portsdown Chalk Member [Obsolete: use PCK] Portsdown Marl Portskerra Conglomerate Member Portskerra Formation [Obsolete: use PORK] Portskerra Psammite Formation Portsmouth Sand Member Portsmouth Sand Member And Whitecliff Sand Member (Undifferentiated) Portsoy Group [Obsolete: use CAPT, PTSL] Portsoy Igneous Complex Portsoy Limestone Formation Portway Formation Portway Formation [Duplicate: use PWG] Portway Group [Obsolete: use PWG] Posidonia Beds Possil First Coal Possil Fourteen Inch Under Coal (Glasgow Area; Central Coalfield) Possil Fourteen-Inch Coal (Glasgow Area; Central Coalfield) Possil Fourteen-Inch Ironstone (Glasgow Area; Central Coalfield) Possil Lower Wee Coal (Glasgow Area; Central Coalfield) Possil Main Coal (Glasgow Area; Central Coalfield) Possil Rider Coal (Glasgow Area; Central Coalfield) Possil Subgroup Possil Wee Coal (Glasgow Area; Central Coalfield) Post carse estuarine deposits [Obsolete: use GOSI] Post-glacial beach deposits [Obsolete: use BCHD] Post-Glacial Marine Deposits Postglacial deposits [Obsolete] Pot Clay Coal (West And South Yorkshire) Pot Clay Marine Band [Local Name: see SBMB] Pot Coal (Bristol Area) Potato Coal (South Lancashire) Potholes Limestone Pott Yeats Sandstone Pottery Clays (Member) Pottery Coal (South Lancashire) Pottery Mine Coal [Obsolete: use PYCO] Potts Beck Limestone [Obsolete: use PBK] Potts Beck Limestone Formation Potts Ghyll Formation [Obsolete: use POG] Potts Ghyll Tuff Formation Pounder Lane Basaltic Pyroclastic-Breccia Vent Pounds Pool Sandy Limestone Member [Obsolete: use BRHD] Powderhouse Corner Sandstone Powell Coal (North Wales) Powell Group Of Coals (North Wales) Powell Marine Band [Local Name: see MTMB] Power House Member [Obsolete: use PSTT] Power House Sand and Gravel Member Power Station Terrace [Obsolete: use PSTT] Powgavie Clay [Obsolete: use PGCL] Powgavie Clay Member Powillimount Beds [Obsolete: use POSD] Powillimount Member [Obsolete: use POSD] Powillimount Sandstone Formation [Obsolete: use POSD] Powillimount Sandstone Member Powis Castle Conglomerate Formation Powis Coal Powley's Hill Member [Obsolete: use PLH] Powley's Hill Tuff Member Powmill Formation [Obsolete: use KNW] Powys Supergroup [Obsolete] Poyllvaaish Limestones of Lewis (1930) [Obsolete: use BOOL] Poynton Five Foot Coal Poynton Four Foot Coal Praetiglian To Cromerian Complex Interglacial 1 Deposits, Undifferentiated (Offshore) Praetiglian to Cromerian Complex Interglacial 1 mud and sand, interbedded (offshore) Praetiglian to Cromerian Complex Interglacial 1 mud, very soft to soft (offshore) Praetiglian to Cromerian Complex Interglacial 1 sand (offshore) Pre-Caledonian And/Or Caledonian Minor Intrusion Suite Pre-Caledonian And/Or Caledonian Sheets Pre-Caledonian Granites Pre-Cambrian To Ordovician Rocks (Undifferentiated) Pre-Devonian Complex (Basement) (Undifferentiated) Pre-glacial raised beach [Obsolete: use PIBG] Pre-Late Devensian Quaternary Sequence At Depth [See Description For Limitations Of Use] Pre-Planorbis Beds [Obsolete: use WCT] Pre-Quaternary Rocks (Undifferentiated) Pre-volcanic sedimentary rocks at Bell Hill [Obsolete: use GCGL] Preesall Halite Formation Preesall Halite Member Preesall Salt [Obsolete: use PRSA] Premier Coal (North Wales) Pren-Teg Grit [Obsolete: use PSA] Prenteg Sandstone Member Prescot Five Foot Coal (South Lancashire) Prescot Main Delf Coal (South Lancashire) Prescot Yard Coal (South Lancashire) Preshal Beg Conglomerate Formation Prestatyn Limestone Formation Prestonlinks Offshore Dyke Prestonpans - Seton Dyke Prestwich Formation Prestwich Rock Prestwich Top Marine Band [Local Name: see CAMB] Prestwick-Mauchline Sill-Complex Pretoria Coal (South Wales) Previously comprised Lower and Upper Liddesdale Group [Obsolete: use LDD] Previously Comprised Lower, Middle and Upper Border Groups [Obsolete] Previously part of Undifferentiated Sandgate Beds [Obsolete: use MHC] Pridoli Rocks (Undifferentiated) Pridoli To Mid Devonian Volcanic Rocks (Undifferentiated) Priest Sandstone Priesthill Group [Cf Hagshaw Group] Priestland Clay Priestlaw Intrusion Primrose Bank Sill Primrose Hill Gneiss Primrose Hill Gneisses [Obsolete: use PRHM] Primrose Hill Granite [Obsolete: use PRHM] Primrose Hill Metamorphic Complex Primrose Hill Schist Prince Rock Member Princes Risborough Sand and Gravel Member Princess Coal (Northumberland) Priorsfield Marine Band [Local Name: see SFMB] Prismatic Clay [Obsolete: use PRIS] Prismatic Clay Member Pro-talus rampart deposits Productive Coal Group [Obsolete] Productive Coal Measures (Middle and Lower) [Obsolete: use CMSC] Productive Coal Measures (Part) [Obsolete: use LCMS] Productive Coal Measures [Obsolete: use CM] Productive Groups (Undifferentiated) [Obsolete] Productive Measures (part) [Obsolete: use MCMS] Productive Measures [Obsolete] Productus Giganteus Limestone [Obsolete: use HHLS] Proglacial deposits Proglacial Lacustrine Sequence In Lower Wasdale Prolecanites Compressus Beds [Obsolete: use LEAM] Proterozoic Rocks (Undifferentiated) Proterozoic To Palaeozoic Rocks (Undifferentiated) Protolenus Limestone Protovirgularia Grits Formation Psammosteus Limestone [Obsolete: use BFLS] Psiloceras Shales [Obsolete: use SASH] Ptarmigan Sandstone Member Ptilograptus Shales Pubil Melange Member Publow Formation [Obsolete: use PUB] Publow Group [Obsolete: use PUB] Publow Member Puffin Formation [Obsolete: use FLMR] Pulborough Sandrock Member Pulchella Coal (Yorkshire) Pule Hill Grit Pulsford Limestone [Obsolete: use PUL] Pulsford Limestone Formation [Obsolete: use PUL] Pulsford Member Pumpherston Shale [Obsolete: use PMSH] Pumpherston Shales Pumpherston Shell Bed Pumphouse Member Pumpquart (Lower) Coal (South Wales) Pumpquart Coal (South Wales) Pundeavon Ironstone Punt Sandstone Member Purbeck [Obsolete: use PB] Purbeck Beds [Obsolete: use PB] Purbeck Formation [Obsolete: use PB] Purbeck Group Purbeck Limestone [Obsolete: use HADD] Purbeck Limestone Formation [Obsolete: use PB, HADD] Purbeck Stone [Obsolete: use PB] Purbeck Strata [Obsolete: use PB] Purley Shale Formation Purley Shales [Obsolete: use PSH] Purple and Green Slates [Obsolete: use TPT] Purple Sandstone Member Purple Shales (of Shropshire) [Obsolete: use PUS] Purple Shales Formation Pusey Flags [Obsolete: use PYF] Pusey Flags Member Push moraine Pwll Big Coal [South Wales Coalfield] Pwll Glas Mudstone Member Pwll Little Coal (South Wales) Pwll-Y-Cwm Oolite [Obsolete: use SYCN] Pwll-y-Cwm Oolite Formation Pwll-Y-Glo Group Pwllygranant Mudstone Member Pylle Clay Member Pyotshaw Coal (Central Coalfield) Pyritous Shale Member Pyroxenous Greywacke Group [Obsolete: use GAL2] Pysgotwr Grits Formation Quaker Coal (North Wales) Quarella Sandstone Quarff Succession And Melange Quarrel Hill Flags [Obsolete: use QHF] Quarrel Hill Formation Quarrel Sands Vent Quarrelton Thick Coal Quarried Limestone Member, Lower [Obsolete: use LQL] Quarried Limestone Member, Upper [Obsolete: use UQL] Quarry (Hard Rock) Quarry Arenite Formation Quarry Coal Quarry Coal (Lothian) Quarry Coal (Milford, South Wales) Quarry Hazle Sandstone Quarry Hill Sandstone Formation Quarry Hill Sandstones [Obsolete: use QHI] Quarry Intrusion Quarry Sandstone Quarry Sandstone Member Quarry Three Limestone Quarry Two Limestone Quarry Vein [Obsolete: use QUCO] Quarry Waste Tip (Hard Rock) Quarterburn Marine Band [Local Name: see SBMB] Quartz Breccia (Vein) Quartz Conglomerate [Obsolete: use COW] Quartz Conglomerate Formation Quartz Conglomerate Formation (Forest of Dean) [Obsolete: use HUNT] Quartz Conglomerate Group (South Wales) [Obsolete: use CWA, PENN, POB] Quartz Pebble Conglomerate [Obsolete: use CRYC] Quartz Porphyry of Lintrathen [Obsolete: use LNP] Quartzite Breccia Quartzite Conglomerate [Obsolete: use HRSC, MFD] Quartzite within Struan Flags [Obsolete: use DUNQ] Quartzite-conglomerate [Obsolete: use KKH] Quartzitic Sandstone Formation Quartzitic Sandstone Group [Obsolete: use QSG] Quartzose Sands [Obsolete: use CLLW] Quaternary Deposits (Undifferentiated) Quaternary Deposits, Undifferentiated (Offshore) Quaternary Deposits, Undifferentiated, Less Than 5m Thick (Offshore) Quaternary Diamicton, Firm To Hard (Offshore) Quaternary mud and sand, interbedded (offshore) Quaternary Mud, Firm To Hard (Offshore) Quaternary mud, very soft to soft (offshore) Quaternary Sediments (Undifferentiated) Queen Coal (Northumberland) Queen Coal (Rothbury Area) [Obsolete: use BEN] Queen Coal (South Lancashire) Queen's Cairn Conglomerate Queen's Hill Formation Queen's Hill Gneiss Formation Queen's Hill Quartzite and Mica-Schist Group [Obsolete: use QH] Queens Rock Member Queensberry Formation Queensberry Formation [Obsolete: use GDE] Queensberry Grit [Obsolete: use TLEE] Queensberry Grits [Obsolete: use GDE, GALA] Queensbury (Buckholm) Grits [Obsolete: use QBY] Queensbury Formation [Obsolete: use ETRK, KKHP, SEO] Queensbury Grit And Grieston Shales Queensbury Grits [Obsolete: use ETRK, KKHP, QBY, SEO] Queensferry Beds [Obsolete: use WLO] Queensferry Cements Queenslie Marine Band [Local Name: see VDMB] Quetivel Mill Conglomerate Queyfirth Group Queyhouse Flags Formation Qui Ayre Sandstone Formation Quien Hill Grit Member Quilichan Granodiorite Vein Complex Quinton Peat Formation R Raasay Granite Raasay Ironstone And Portree Shale Formation (Undifferentiated) Raasay Ironstone Formation Raasay Ironstone Formation and Portree Shale Formation (Undifferentiated) [Obsolete: use RIPS] Raasay Sandstone Member [Obsolete: use DAFS] Raasay Upper Cornbrash Racks Tuff Rad Brook Beds [Obsolete: use RKM] Rad Brook Mudstone Member Radcliffe Coal (Northumberland) Radcliffe Formation [Obsolete: use RDCF] Radcliffe Member Raddery Sandstone Formation Radernie Brassie Coal Radernie Duffie Coal Radernie Main Coal Radernie Marl Coal Radley Coal (South Lancashire) Radley Mine Coal [Obsolete: use RADC] Radlith Conglomerate [Obsolete: use YWOR] Radlith Conglomerate Member Radstock Formation [Obsolete: use RAD] Radstock Group [Obsolete: use RAD] Radstock Member Radwood Formation [Obsolete: use SAL] Raebeg Sandstone Formation Raebeg Sandstone Formation and Conglass Conglomerate Formation (undifferentiated) [Obsolete: use RSCS] Raebeg Sandstone Formation And Conglass Sandstone Formation (Undifferentiated) Raeberry Castle Formation Raeburn Shale Raeburn Shell Bed Raesgill Clay Ironstones Raesgill Ironstones Rag Coal (Bristol Area) Rag Mine Coal (North Staffordshire) Raglan Marl Formation [Obsolete: use RG] Raglan Marl Group [Obsolete: use RG] Raglan Mudstone Formation [Obsolete: use MOCL] Raglan Mudstone Formation and St Maughans Formation (Undifferentiated) Ragleth Tuff Formation Ragleth Tuffs [Obsolete: use RT] Ragman And Rough Seven Feet Coal (North Staffordshire) Ragman Coal (North Staffordshire) Ragstone [Obsolete: use SHYS] Ragstone and Freestone Beds [Obsolete: use SHYS] Ragstone Beds [Obsolete: use SHYS] Ragstones [Obsolete: use TIY] Raik Vein Rail Cutting Rail Embankment Rain Gill Limestone Member Raisby (Magnesian Limestone) Formation [Obsolete: use RML] Raisby Formation Raisby Formation And Ford Formation (Undifferentiated) Raise Beck Member [Obsolete: use RABK] Raise Coal (North Ayrshire) Raisebeck Volcaniclastic Member Raised beach deposits Raised beach deposits 1 [Obsolete: use RBD1] Raised beach deposits of late-glacial age [Obsolete: use RBDLG, RMBDD] Raised beach deposits of post-glacial age [Obsolete: use RBDPG, RMBDF] Raised beach deposits of Wolstonian age Raised beach deposits older Raised beach deposits younger Raised beach deposits, 1 Raised beach deposits, 2 Raised beach deposits, 2, 3 etc. [Obsolete: use RMDV2] Raised beach deposits, 3 Raised beach deposits, late-glacial Raised beach deposits, post-glacial Raised bog peat Raised Brackish Lagoon Deposits (Undifferentiated) Raised Fill (Undivided) Raised Gravel Beach Raised Intertidal Deposits and Raised Marine Deposits (Undifferentiated) Raised Lacustrine Gravel Beach Deposits Raised marine and coastal zone deposits Raised marine beach deposits [Obsolete: use RBDU] Raised marine beach deposits of Flandrian age [Obsolete: use RMBDF] Raised marine beach deposits of Holocene age Raised marine beach deposits, 1 (Rathlin) Raised marine beach deposits, 2 (Rathlin) Raised marine beach deposits, 3 (Rathlin) Raised marine beach deposits, late Devensian Raised marine deltaic deposits Raised marine deltaic deposits, Devensian Raised marine deposits (undifferentiated) [Obsolete: use RMD] Raised marine deposits of Flandrian age [Obsolete: use RMDF] Raised marine deposits of Flandrian age, 1 [Obsolete: use RMDF1] Raised marine deposits of Flandrian age, 2 [Obsolete: use RMDF2] Raised marine deposits of Flandrian age, 3 [Obsolete: use RMDF3] Raised marine deposits of Flandrian age, 4 [Obsolete: use RMDF4] Raised marine deposits of Holocene age Raised marine deposits of Holocene age, 1 Raised marine deposits of Holocene age, 2 Raised marine deposits of Holocene age, 3 Raised marine deposits of Holocene age, 4 Raised marine deposits, 1 Raised marine deposits, 2 Raised marine deposits, 3 Raised marine deposits, Devensian Raised marine deposits, late Devensian, 1 Raised marine deposits, late Devensian, 2 Raised marine intertidal and subtidal deposits Raised marine/beach/estuarine deposits of late-glacial age [Obsolete: use RTFDD] Raised marine/beach/estuarine deposits of postglacial age [Obsolete: use RTFDF] Raised storm beach deposits Raised storm beach deposits 2 [Obsolete: use RSB2] Raised storm beach deposits of Flandrian age [Obsolete: use RSBQF] Raised storm beach deposits of Holocene age Raised storm beach deposits of Ipswichian age Raised storm beach deposits, 1 Raised storm beach deposits, 2 Raised storm beach deposits, late Devensian Raised storm beach deposits, older Raised storm beach deposits, younger Raised tidal flat deposits Raised tidal flat deposits of Flandrian age [Obsolete: use RTFDF] Raised tidal flat deposits of Flandrian age, 1 [Obsolete: use RTFF1] Raised tidal flat deposits of Flandrian age, 2 [Obsolete: use RTFF2] Raised Tidal Flat Deposits Of Holocene Age Raised tidal flat deposits of Holocene age, 1 Raised tidal flat deposits of Holocene age, 2 Raised Tidal Flat Deposits, Late Devensian Raised Warp [Obsolete: use MRWA] Rait Castle [Obsolete: use RCCN] Raitcastle Conglomerate Formation Raliabeg Psammite Formation Ramasaig Formation Ramasaig Group [Obsolete: use RAMA] Rams Coal (South Lancashire) Rams Mine Coal [Obsolete: use RAMS] Ramsden Heath Sand and Gravel Member Ramsey Sound Group Ramsey Sound Series [Obsolete: use PVR] Ramsholt Member Randerston Limestone Randle Coal (Coalbrookdale) Randy Pike Member [Obsolete: use CDW] Rannoch Formation Rannoch Moor Pluton Rannoch Mudstone Unit [Obsolete: use RANN] Rannoch Shale [Obsolete: use RANN] Rannoch Sub-Unit [Obsolete: use RANN] Raploch Sandstone Rascarrel Group [Obsolete: use RASC] Rascarrel Member Rascarrel Sandstone Formation [Obsolete: use RASC] Rascarrel Sandstones and Conglomerates [Obsolete: use RASC] Rastrites Maximus Mudstones [Obsolete: use MAX] Ratagain Plutonic Complex Ratcliffe Volcanic Member Rattler Coal (Cumbria) Rattray Formation [Obsolete: use RAVL, ROVL] Rattray Volcanics Member Raude Member [Obsolete: use STAT] Raughton Gill Limestone Raveagh Sandstone Formation Ravelston Sandstone Raven Gill Formation Raven's Gulley Tuff Ravendale Flint Ravenfield Rock Ravenglass Till Member Ravenhead Higher Delf [Obsolete: use HRHC] Ravenhead Main Delf [Obsolete: use MRHC] Ravenhead Rock Ravenscar Group Ravenscraig Sandstone Ravensdale Tuff [Obsolete: use RDT] Ravensdale Tuff Member Ravensheugh Sill Ravensholme Limestone [Obsolete: use RL] Ravensholme Limestone Member Ravenstonedale Group Ravenstonedale Group And Great Scar Limestone Group (Undifferentiated) Ravenstonedale Limestone [Obsolete: use RVS] Raventhorpe Beds [Obsolete: use LLL, SNO] Raventhorpe Beds And Kirton Cementstone Beds (Undifferentiated) Raventhorpe Beds Member [Obsolete: use RVB] Raventhorpe Member plus Santon Oolite Member (part) [Obsolete: use RVB] Ravine Coal (South Lancashire) Rawney Limestone Rawns Beds [Obsolete: use RWN] Rawns Formation [Obsolete: use RWN] Rawns Member Rawns Shales [Obsolete: use RWN] Rawns Shales and Sandstones [Obsolete: use RWN] Raydale Dolomite [Obsolete: use RDO] Raydale Dolomite Formation [Obsolete: use RDO] Raydale Dolostone Formation Raygill Coal Re-Constituted Lewisian Reading Beds [Obsolete: use RB] Reading Beds and London Clay (Undifferentiated) [Obsolete: use RBLC] Reading Bottom Bed [Obsolete: use UPR] Reading Formation Reading Formation [Duplicate: use RB] Reading Formation And London Clay Formation (Undifferentiated) Reading Formation Basement Bed [Obsolete: use UPR] Readycon Dean Flags Readycon Dean Grit [Obsolete: use RDG] Reagill Coal Reaper Glacigenic Group Reay Burn Till Formation Reay Diorite Reay Till [Obsolete: use BRBU, REBU] Rebecca Grit (Member) [Obsolete: use REB] Rebecca Sandstone Member Recarson Andesite Member [Obsolete] Reclaimed Ground Reclaimed Intertidal Deposits Recreational Course Reculver Sand Member Reculver Silts [Obsolete: use RCLV] Red and Grey Limestones [Obsolete: use JPLS] Red Arch Formation Red Ash Coal (Goyt Trough) Red Axen Coal (Somerset) Red Barren Coal Measures [Obsolete: use BME] Red Bay Formation Red Bed Member [Obsolete: use CLWD] Red Beds [Obsolete: use HBW] Red Burn Member Red Burn Till Formation Red Chalk [Obsolete: use HUCK] Red Chalk And Carstone Formation (Undifferentiated) Red Clay Series [Obsolete: use MDR] Red Cliff Formation Red Cliff Hole Member Red Coal Red Coal (North Wales) Red Coal (Somerset) Red Coal (South Wales) Red Coastal Series [Obsolete: use LBD] Red Conglomerate Group Red Crag [Obsolete: use RCG] Red Crag Formation Red Crag Member [Obsolete: use RCG] Red Crag Series [Obsolete: use RCG] Red Craig Gravels Formation Red Down Ironsand [Obsolete: use RDDI] Red Down Ironsand Member [Obsolete: use RDDI] Red Down Sand Member Red Downtonian [Obsolete: use RG] Red Gill Formation Red Glacial Drift [Obsolete: use MDR] Red Head Formation [Obsolete: use RHF] Red Head Sandstone Member Red Hill Limestone Formation Red Hill Oolite [Obsolete: use RHO] Red Igneous Conglomerate and Sandstone [Obsolete: use HSW] Red Island Formation Red Lion Till Member Red Marl [Obsolete: use MMG] Red Marl Group [Obsolete: use FWW] Red Marls (saliferous) [Obsolete: use MMG] Red Measures [Obsolete: use WAWK] Red Mine Coal (North Staffordshire) Red Sand in Upper Calcareous Grit [Obsolete: use RDDI] Red Sands of Uffington [Obsolete: use FHMS] Red Sandstone Group [Obsolete: use BBKS, BRS] Red Sandstone Member Red Sandstone Series [Obsolete: use HSW] Red Scar Grit Red Series [Obsolete: use MDR, LBD, MEAG, LBAG] Red Series clays or glaciolacustrine deposits [Obsolete: use UGCL] Red Series Till [Obsolete: use HATT] Red Shagg Coal (North Staffordshire) Red Vein [Obsolete: use BRV] Red Vein Coal (South Wales) Red Wharf Cherty Limestone [Obsolete: use REL] Red Wharf Limestone [Obsolete: use REL] Red Wharf Limestone Formation Redbourne Group [Obsolete: use GOG, INO] Redcar Mudstone Formation Redcliff Formation Redcliff Rock Member Redcliffe Sandstone [Obsolete: use RESA] Redcliffe Sandstone Formation [Obsolete: use RESA] Redcliffe Sandstone Member Reddish brown ground moraine [Obsolete: use REBU] Reddish brown ground morraine [Obsolete: use BRBU] Redesdale Ironstone (Shale) Redesdale Limestone Redhall Marine Band Redheugh Mudstone Formation Redhill and Slade Beds [Obsolete: use SLR] Redhill Beds Redhouse Burn Lower Limestone Redhouse Burn Middle Limestone Redhouse Burn Upper Limestone Redhouse Sandstone Formation Redhouse Sandstones [Obsolete: use RES] Redhythe Quartzite Member Redmain Formation [Obsolete: use LWF] Redmarley Member Redmires Flags Redoubt Beds Redside Vent Ree Burn Formation Reef Limestone [Obsolete] Reeker Coal Reeker Limestone Reelan Formation Reform Coal (South Lancashire) Regolith Regoul Sandstone Formation Rehiran Cryoturbate Member Reid's Vein Reidh Psammite [Obsolete: use REP] Reidh Psammite Formation Reisgill Burn Till Formation Relugas Psammite Formation Rempstone Formation Rempstone Granodiorite Reppachie Semipelitic Schist Formation Reservoir Beds [Obsolete: use RSVR] Reservoir Embankment Reservoir Flags Reservoir Formation Reservoir Formation [Duplicate: use RSVR] Reservoir Quartzite Member Reservoir Schists Member Residual deposits Residual Deposits Group Resipol Striped Assemblage [Formation] [Obsolete: use RESI] Resipol Striped Formation Rest Gill Tuff Rest Gill Tuff Member [Obsolete: use REG] Reston Group Retford Formation [Obsolete: use RTF] Retford Formation plus Colwick Formation [Obsolete: use TPSF] Retford Member Reticuloceras bilingue Marine Band (1 of 3) [Obsolete: use R2B1] Reticuloceras bilingue Marine Band (2 of 3) [Obsolete: use R2B2] Reticuloceras bilingue Marine Band (3 of 3) [Obsolete: use R2B3] Reticuloceras bilingue Marine Band [Obsolete: use BIMB] Reticuloceras circumplicatile Marine Band Reticuloceras circumplicatile Marine Band [Duplicate: use R1A2] Reticuloceras coreticulatum Marine Band Reticuloceras coreticulatum Marine Band [Duplicate: use R1C4] Reticuloceras dubium Marine Band Reticuloceras dubium Marine Band [Duplicate: use R1A5] Reticuloceras eoreticulatum Marine Band Reticuloceras gracile Marine Band [Obsolete: use R2A1] Reticuloceras metabilingue Marine Band [Obsolete: use R2B5] Reticuloceras moorei Marine Band Reticuloceras nodosum Marine Band Reticuloceras nodosum Marine Band [Duplicate: use R1B2] Reticuloceras reticulatum Marine Band (1 of 3) Reticuloceras reticulatum Marine Band (2 of 3) Reticuloceras reticulatum Marine Band (2 of 3) [Duplicate: use R1C2] Reticuloceras reticulatum Marine Band (3 of 3) Reticuloceras reticulatum Marine Band (3 of 3) [Duplicate: use R1C3] Reticuloceras reticulatum Marine Band [See Also: R1C1, R1C2, R1C3] Reticuloceras stubblefieldi Marine Band Reticuloceras stubblefieldi Marine Band [Duplicate: use R1B3] Reticuloceras subreticulatum Marine Band Reticuloceras superbilingue Marine Band [Obsolete: use R2C1] Reticuloceras todmordenense Marine Band Retreat Siltstone Formation Revidge Grit [Obsolete: use FLB] Rhaetian Rocks (Undifferentiated) Rhaetic [Obsolete: use PNG, RH] Rhaetic, Lower [Obsolete: use WBY, PNG] Rhasfach Coal (South Wales) Rhaxella Chert [Obsolete: use AGSP, RIS] Rhayader Mudstone Formation (Green Beds) Rhayader Mudstones [Obsolete: use RHS] Rhayader Mudstones Formation Rhayader Pale Shales Formation [Obsolete: use RHS] Rhayader Pale Slates [Obsolete: use RPSL] Rhayader Shales [Obsolete: use RHS] Rhengog Fach Coal (South Wales) Rhengog Fawr Coal (South Wales) Rhiconich Gneisses [Obsolete: use ICGN] Rhiconich Group [Obsolete: use ICGN] Rhindaston And Gignog Group Rhinns Complex Rhinog Formation Rhiroy Member Rhiw Bach Formation [Obsolete: use RBVO] Rhiw Bach Volcanic Formation Rhiw Volcanic Group Rhiwlas Beds Rhiwlas Limestone [Obsolete: use RWL] Rhiwlas Limestone Formation [Obsolete: use RWL] Rhiwlas Limestone Member Rhiwlas Mudstones [Obsolete: use MFN] Rhobell Ganol Formation Rhobell Volcanic Group Rhondda Beds [Obsolete: use RA] Rhondda Formation [Obsolete: use RA] Rhondda Member Rhos Hirwain Synenite Rhoscolyn Formation Rhosneigr Formation Rhosson Group Rhuddanian-Aeronian Stages [Obsolete: use FOW] Rhuddnant Grits (Formation), Cletwr Facies [Obsolete: use RDD] Rhuddnant Grits (Formation), Doethie Facies [Obsolete: use DOFA] Rhuddnant Grits Formation Rhyddlan Formation Rhydings Formation Rhymney Grit Member Rhynchonella Grit [Obsolete: use LCRG] Rhynchonellid Sandstone Rhynconella Zone [Obsolete: use ROAD] Rhynie Chert Formation [Obsolete: use RHNC] Rhynie Chert Member Rhynie Group Rhyolite (Uriconian Group) [Obsolete: use UO] Rhyolites (Uriconian Group) [Obsolete: use UO] Rhyolitic Ash [Obsolete: use AVF] Rhyolitic Grits And Tuffs Rhyolitic Series [Obsolete: use HHT] Rhyolitic Series and Ashy Series [Obsolete: use OF] Riabhach Banded Formation Rib Mudstone Ribbings Marine Band [Local Name: see CAMB] Ribble Sandstone Member Ribble Unit [Obsolete: use RISA] Ribble Valley Formation Ribbon Coal Riby Marl Riccarton and Raeberry Castle Beds [Obsolete: use RCN, RRC] Riccarton Formation [Obsolete: use RCN] Riccarton Group Richmond Chert Richmond Chert Series [Obsolete: use RDC] Rickets Head Coal (Milford, South Wales) Rickets Head Vein [Obsolete: use RHCO] Riddings Marine Band Riddle Scout Rock Rider Coal (Cheadle) Rider Coal (Derbyshire) Ridgacre Formation Ridge Conglomerate Unit Ridgeway Conglomerate Formation Ridgeway Member Ridgeway Member And Worbarrow Tout Member (Undifferentiated) Riding Coal (South Lancashire) Riedel Potash [Obsolete: use ZECH3] Rigghead Limestone Rilbury Siltstone Member Rillage Limestone Rimarsin Limestone Formation Ringinglow Coal (North Derbyshire) Ringmer Beds Ringsbury Spiculite Member Ringslade Clay Member Ringstead Clay Member Ringstead Sand And Gravel Ringstead Sand and Gravel Member Ringstead Waxy Clay Member [Obsolete: use RWC] Ringstead Waxy Clays [Obsolete: use RWC] Rinn Point Limestone Formation Ripple Marine Band [Local Name: see VDMB] Rireavach Member Risbury Glacigenic Formation Risehow Marine Band [Local Name: see EMMB] Rissington Gravel [Obsolete: use RIN] Rissington Sand and Gravel Member Rivelin Grit [Obsolete: use CHG] River and glaciofluvial sheet deposits, undivided [Obsolete] River brickearth [Obsolete: use FAEOL] River gravel River terrace (undifferentiated) [Obsolete: use RTD] River terrace deposits River Terrace Deposits (Undifferentiated) River Terrace Deposits (Undifferentiated) (Ouse, Kent) [Obsolete: use KEOU] River Terrace Deposits (Undifferentiated) (Tamar) River Terrace Deposits 1-7 (Arun) [Obsolete: use ARUN] River Terrace Deposits, 1 River Terrace Deposits, 1 (Adur) River Terrace Deposits, 1 (Arun) [Obsolete: use AR1] River Terrace Deposits, 1 (Bramley Wey) River Terrace Deposits, 1 (Godalming Wey) River Terrace Deposits, 1 (Lugg) [Obsolete: use MARDN] River Terrace Deposits, 1 (Medway) [Obsolete: use ME1] River Terrace Deposits, 1 (Mole) River Terrace Deposits, 1 (Petrockstow) [Obsolete: use PET1] River Terrace Deposits, 1 (Rother, Sussex) [Obsolete: use RS1] River Terrace Deposits, 1 (Tamar) River Terrace Deposits, 1 (Taw) [Obsolete: use TAW1] River Terrace Deposits, 1 (Torridge) [Obsolete: use TOR1] River Terrace Deposits, 1 (Wey) River Terrace Deposits, 1 (Wye) [Obsolete: use BULLH] River Terrace Deposits, 1 (Wyre) River Terrace Deposits, 1 to 2 River Terrace Deposits, 1 to 2 (Adur) River Terrace Deposits, 1 to 2 (Mole) River Terrace Deposits, 1 to 3 River Terrace Deposits, 1 to 4 River Terrace Deposits, 1-2 (Ouse, Kent) River Terrace Deposits, 10 River Terrace Deposits, 10 (Taw) [Obsolete: use TAW10] River Terrace Deposits, 11 River Terrace Deposits, 11 (Taw) [Obsolete: use TAW11] River Terrace Deposits, 11a River Terrace Deposits, 11b River Terrace Deposits, 12 River Terrace Deposits, 12a River Terrace Deposits, 12b River Terrace Deposits, 13 River Terrace Deposits, 14 River Terrace Deposits, 15 River Terrace Deposits, 16 River Terrace Deposits, 1a River Terrace Deposits, 1a (Godolming Wey) River Terrace Deposits, 1a (Rother, Sussex) [Obsolete: use RS1A] River Terrace Deposits, 1b River Terrace Deposits, 1b (Godalming Wey) River Terrace Deposits, 1b (Rother, Sussex) [Obsolete: use RS1B] River Terrace Deposits, 1c River Terrace Deposits, 2 River Terrace Deposits, 2 (Adur) River Terrace Deposits, 2 (Arun) [Obsolete: use AR2] River Terrace Deposits, 2 (Bramley Wey) River Terrace Deposits, 2 (Godalming Wey) River Terrace Deposits, 2 (Lugg) [Obsolete: use MORTN] River Terrace Deposits, 2 (Medway) [Obsolete: use ME2] River Terrace Deposits, 2 (Mole) River Terrace Deposits, 2 (Petrockstow) [Obsolete: use PET2] River Terrace Deposits, 2 (Rother, Sussex) [Obsolete: use RS2] River Terrace Deposits, 2 (Solway Esk) [Obsolete: use SE2] River Terrace Deposits, 2 (Tamar) River Terrace Deposits, 2 (Taw) [Obsolete: use TAW2] River Terrace Deposits, 2 (Torridge) [Obsolete: use TOR2] River Terrace Deposits, 2 (Wye) [Obsolete: use HAMPT] River Terrace Deposits, 2 (Wyre) River Terrace Deposits, 2 to 3 River Terrace Deposits, 2 to 3 (Adur) River Terrace Deposits, 2 to 3 (Arun) [Obsolete: use AR2T3] River Terrace Deposits, 2 to 3 (Blackwater) River Terrace Deposits, 2 to 3 (Medway) River Terrace Deposits, 2 to 4 River Terrace Deposits, 2a River Terrace Deposits, 2a (Arun) [Obsolete: use AR2A] River Terrace Deposits, 2b River Terrace Deposits, 2b (Arun) [Obsolete: use AR2B] River Terrace Deposits, 3 River Terrace Deposits, 3 (Adur) River Terrace Deposits, 3 (Arun) [Obsolete: use AR3] River Terrace Deposits, 3 (Blackwater) River Terrace Deposits, 3 (Godalming Wey) River Terrace Deposits, 3 (Lugg) [Obsolete: use KINGF] River Terrace Deposits, 3 (Medway) [Obsolete: use ME3] River Terrace Deposits, 3 (Petrockstow) [Obsolete: use PET3] River Terrace Deposits, 3 (Rother, Sussex) [Obsolete: use RS3] River Terrace Deposits, 3 (Solway Esk) [Obsolete: use SE3] River Terrace Deposits, 3 (Tamar) River Terrace Deposits, 3 (Taw) [Obsolete: use TAW3] River Terrace Deposits, 3 (Torridge) [Obsolete: use TOR3] River Terrace Deposits, 3 (Wye) [Obsolete: use HLACY] River Terrace Deposits, 3 to 4 River Terrace Deposits, 3 to 4 (Arun) [Obsolete: use AR3T4] River Terrace Deposits, 3 to 4 (Tamar) River Terrace Deposits, 3 to 4 (Taw) [Obsolete: use 3TAW4] River Terrace Deposits, 3-4 (Ouse, Kent) River Terrace Deposits, 3a River Terrace Deposits, 3a (Rother, Sussex) [Obsolete: use RS3A] River Terrace Deposits, 3b River Terrace Deposits, 3b (Rother, Sussex) [Obsolete: use RS3B] River Terrace Deposits, 4 River Terrace Deposits, 4 (Arun) [Obsolete: use AR4] River Terrace Deposits, 4 (Blackwater) River Terrace Deposits, 4 (Lugg) [Obsolete: use SUTTW] River Terrace Deposits, 4 (Medway) [Obsolete: use ME4] River Terrace Deposits, 4 (Petrockstow) [Obsolete: use PET4] River Terrace Deposits, 4 (Rother, Sussex) [Obsolete: use RS4] River Terrace Deposits, 4 (Tamar) River Terrace Deposits, 4 (Taw) [Obsolete: use TAW4] River Terrace Deposits, 4 (Torridge) [Obsolete: use TOR4] River Terrace Deposits, 4 (Wye) River Terrace Deposits, 4 to 5 River Terrace Deposits, 4 to 5 (Arun) [Obsolete: use AR4T5] River Terrace Deposits, 4 to 6 River Terrace Deposits, 4 to 7 River Terrace Deposits, 4a River Terrace Deposits, 4b River Terrace Deposits, 5 River Terrace Deposits, 5 (Arun) [Obsolete: use AR5] River Terrace Deposits, 5 (Petrockstow) [Obsolete: use PET5] River Terrace Deposits, 5 (Rother, Sussex) [Obsolete: use RS5] River Terrace Deposits, 5 (Tamar) River Terrace Deposits, 5 (Taw) [Obsolete: use TAW5] River Terrace Deposits, 5 (Torridge) [Obsolete: use TOR5] River Terrace Deposits, 5 to 6 River Terrace Deposits, 5 to 6 (Taw) [Obsolete: use 5TAW6] River Terrace Deposits, 5 to 7 River Terrace Deposits, 5a River Terrace Deposits, 5b River Terrace Deposits, 5c River Terrace Deposits, 6 River Terrace Deposits, 6 (Arun) [Obsolete: use AR6] River Terrace Deposits, 6 (Tamar) River Terrace Deposits, 6 (Taw) [Obsolete: use TAW6] River Terrace Deposits, 6 (Torridge) [Obsolete: use TOR6] River Terrace Deposits, 6 to 7 River Terrace Deposits, 6 to 8 River Terrace Deposits, 6a River Terrace Deposits, 6b River Terrace Deposits, 7 River Terrace Deposits, 7 (Arun) [Obsolete: use AR7] River Terrace Deposits, 7 (Tamar) River Terrace Deposits, 7 (Taw) [Obsolete: use TAW7] River Terrace Deposits, 7 (Torridge) [Obsolete: use TOR7] River Terrace Deposits, 7 to 9 River Terrace Deposits, 8 River Terrace Deposits, 8 (Tamar) River Terrace Deposits, 8 (Taw) [Obsolete: use TAW8] River Terrace Deposits, 8 (Torridge) [Obsolete: use TOR8] River Terrace Deposits, 8 to 9 River Terrace Deposits, 9 River Terrace Deposits, 9 (Taw) [Obsolete: use TAW9] River Terrace Deposits, 9 (Torridge) [Obsolete: use TOR9] River terrace deposits, Ipswichian River Terrace Deposits, Undifferentiated [Obsolete: use FULB] River Terrace Loam River terrace sand and gravel River terrace sand and gravel, undifferentiated [Obsolete: use RTSG] River Terrace, Erosional, 1 Rivergreen Coal (Northumberland) Rivers Mouth Formation Roach (Stone) [Obsolete: use ROH] Roach Formation Roach Formation And Fulletby Beds (Undifferentiated) Roach Stone [Obsolete: use ROH] Roaches Grit Road Cutting Road Embankment Road Uchaf Formation Road Uchaf Formation [Obsolete: use PED] Roade Member Roadwater Limestone Roanburn Vein Rob's Cove Conglomerate Formation [Obsolete: use RCC] Rob's Cove Conglomerate Member Robb Coal Robbery Head Subgroup Robeston Wathen Limestone Robeston Wathen Limestone And Sholeshook Limestone (Undifferentiated) Robie's Coal Robin Sandstone Robins Hill Palaeosol Member Robinson Limestone Robinson Member Robinson's Limestone Robroyston Limestone [Obsolete: use CAL] Roch Rhyolitic Group [Obsolete: use RRH] Roch Rhyolitic Series [Obsolete: use RRH, PRR] Roch Volcanic Formation Rock Coal Rock Coal (Somerset) Rock Coal (South Wales) Rock Coal + Little Coal Rock creep Rock Fach Coal (South Wales) Rock glacier deposits [Obsolete: use MORD] Rock Vein [Obsolete: use ROCC] Rock Vein Coal (Pembrokeshire) Rockdale Limestone Formation Rockey Coal (Forest Of Dean) Rockingham Sandstone Member Rødby Formation Roddam Dene Conglomerate Formation Roddlesworth Formation Roddymoor Marine Band Rodhuish Limestone Roding Silt Formation [Obsolete: use ROSI] Roding Silt Member Rodway Beds [Obsolete: use RSI] Rodway Siltstone Formation Rodway Siltstones [Obsolete: use RSI] Roe Valley Group Roeburndale Formation [Obsolete: use RBL, SILS] Roeburndale Grit [Obsolete: use RBL, WRST] Roeburndale Grit Group [Obsolete: use RBL] Roeburndale Member Roedean Triple Marls (One) Roedean Triple Marls (Three) Roedean Triple Marls (Two) Roerwater Intrusion Roffey Park Sandstone Rogaland Group [Dutch Classification - reserved for possible future use] Rogart Pluton Rogart Pluton, Phase 1 Rogart Pluton, Phase 2 Rogart Pluton, Phase 3 Rogate Beds [Obsolete: use RGTB] Rogate Member Rogenstein Member Roger Coal (South Lancashire) Roger Mine Coal [Obsolete: use RMCO] Roineval Formation Roker Dolomite Formation [Obsolete: use ROD] Roker Formation Roker Formation And Concretionary Limestone (Undifferentiated) Rolling Bank Member Roman Camp Beds Roman Cement Limestone Roman Fell Beds [Obsolete: use MASA] Roman Fell Sandstones [Obsolete: use MASA] Roman Fell Shales [Obsolete: use MASA] Ron Volcanics Member Rona Formation (Jurassic) Rona Formation (Quaternary) Rona Sequence [Obsolete: use RNA] Ronaldsway Member [Obsolete: use SWIK] Ronas Hill Granite Ronas Voe Breccias Ronnenburg Potash [Obsolete: use ZECH3] Roof Soft + Deep Soft Coals (Nottingham) Roof Soft Coal (Nottingham and Derby) Rookhope Shell Beds Rookhope Shell-Beds Limestone Rookwood Limestone Member Roosecote Anhydrite Roosecote Dolomite Roosecote Mudstones [Obsolete: use UBS] Root of classification Rora Mudstone Formation Rora Slate [Obsolete: use RRAM] Rora Slate Formation [Obsolete: use RRAM] Rora Tonalite Rorrington Beds [Obsolete: use RRR] Rorrington Group [Obsolete: use RRR] Rorrington Member [Obsolete: use RRR] Rorrington Shale Formation Rorrington Shale Formation And Spy Wood Sandstone Formation (Undifferentiated) Rosebrae Beds Rosebush Formation Rosedale East Ironstone [Obsolete: use RDLI] Rosedale Ironstone Member Rosehall Croft Limestone Rosehearty Formation Rosehearty Group [Obsolete: use DCRG] Roseland and Meneage Breccias [Obsolete: use RDBR] Roseland Breccia Formation Roseland Volcanics [Obsolete: use RDBR] Rosemarket Beds [Obsolete: use RMB] Rosemarket Formation Rosemarkie Metamorphic Complex Rosenum Formation Rosneath Conglomerate [Obsolete: use RON] Rosneath Conglomerate Formation Ross Formation Ross Of Mull Pluton Ross Of Mull Pluton, Phase 1 Ross Of Mull Pluton, Phase 2 Ross Of Mull Pluton, Phase 3 Ross Sand Formation [Obsolete: use RSSA] Ross Sand Member Rossall Halite Formation [Obsolete: use RSA] Rossall Halite Member Rossall Salts [Obsolete: use RSA] Rossendale Formation Rosses Centred Complex Rosses Centred Complex Phase 1 Rosses Centred Complex Phase 2 Rosses Centred Complex Phase 3 Rosses Centred Complex Phase 4 Rosskit Limestone Member Rossmore Mudstone Formation Rosthwaite Rhyolite Member Rosy Coal (South Wales) Rosyth Algal Dolostone Rosyth Algal Limestone [Obsolete: use ROAL] Röt Halite Member Rotational slides Roter Salzton Formation Rotherby Clay [Obsolete: use RYCL] Rotherby Member [Obsolete: use BOSW] Rothersyke Till Member Rothesay Limestone Rothley Grits Rotliegend Group Rotliegendes Group [Obsolete: use RLG] Rottal Schist Formation Rotten Marl [Obsolete: use RTM] Rottenhill Member [Obsolete: use ROTIL] Rottenhill Till Formation Rottingdean Pair Marls (One) Rottingdean Pair Marls (Two) Rottington Sandstone Member Rotton Marl Formation Rottonstone Beds [Obsolete: use OB] Rouen Bay Sandstone Member Rouen Bay Tuff Member [Obsolete: use RBT] Rouen Formation [Obsolete: use RBT, WCO] Rougemont Lavas [Obsolete] Rough Brow Flint Rough Coal [Obsolete: use LDIC] Rough Craig Intrusion Rough Hills White Ironstone (South Staffordshire) Rough Holden Coal (West Yorkshire) Rough Limestone (Cumbria) Rough Rock Rough Rock Flags Rough Rock Formation [Obsolete: use RR] Rough Rock Grit Group [Obsolete: use ROSSE] Rough Rock Shales Rough Seven-Feet Coal (North Staffordshire) Roughband Ironstone (Central Coalfield) Roughband Limestone Rougholme Point Conglomerate Round How Breccia Member Round How Breccias [Obsolete: use RND] Round How Member [Obsolete: use RND] Roundhill Clay Rousay Beds [Obsolete: use ROF] Rousay Flags [Obsolete: use ROF] Rousay Flags Member Rova Head Conglomerate Member Roven Formation [Obsolete: use RNF] Rowanburnfoot Marine Band [Local Name: see SFMB] Rowantreethwaite Member [Obsolete: use RWT] Rowantreethwaite Tuff Member Rowe Chalk Formation Rowe Formation Rowe Formation [Obsolete: use ROWE] Rowhurst Coal (North Staffordshire) Rowhurst Rider Coal (North Staffordshire) Rowhurst Rider Marine Band [Local Name: see EMMB] Rowley Regis Laccolith [Obsolete: use RRLO] Rowley Regis Microgabbro Lopolith Rowlington Coal (Northumberland) Rownham Hill Coral Bed Rowton Brook Sandstone Member Roxby Formation Roxham Beds [Obsolete: use RXB] Roxham Member And Runcton Member (Undifferentiated) Roxham Sand Member Royal Sovereign Formation Royley Sandstone Royston Coal (West Yorkshire) Royston Rock [Obsolete] Rozel Conglomerate Ruabon Marl [Obsolete: use RM] Ruabon Marl Formation [Obsolete: use ETM] Ruabon Marl Formation And Erbistock Formation (Undifferentiated) Ruabon Member Ruabon Till [Obsolete: use RBNTI] Ruabon Till Member Ruabon Yard Coal (North Wales) Ruadh Stac Granite [Srath Na Creitheach Centre] Ruadh-Phort Beag Member Ruaival Drift [Obsolete: use LEWTI] Ruallan Till Member Rubble Coal (South Staffordshire) Rubbly Beds and Upper Coral Bed [Obsolete: use CG] Rubers Law Vent And Plug Rubery Formation Rubery Sandstone [Obsolete: use RBS] Rubery Sandstone and Rubery Shale [Obsolete: use RBY] Rubery Sandstone Member Rubery Sandstone Series [Obsolete: use RBY] Rubery Shale [Obsolete: use RBSH] Rubery Shale Member Rubh'An Dunain Formation Rubha Dubh Ard Member Rubha Gaidheaiach Grit Formation Rubha Gaidheaiach Grit Formation, Kilchiaran Phyllite Formation And Eilean Liath Grit Formation (Undifferentiated) Rubha Guail Formation Rubha Na H'Airde Moire Phyllite Formation Rubha Na H-Earba Formation Rubha Ruadh Granite Rubha Ruadh Granites [Obsolete: use RUBR] Rubha Ruadh Semipelite Member Rubha Sandstone Member Ruchill Flagstone Formation Ruchill Formation [Obsolete: use RLF] Ruddington Moor Till Rudford Member Rudge Coal (Somerset) Rudge Vein [Obsolete: use RUDC] Rudha Na Roinne Grit [Obsolete: use TCAS, TCAM] Rudha Ruadh Granite-Gneiss [Obsolete: use RUBR] Rudry Formation [Obsolete: use BHL, FPL] Rue Hill Dolomite Formation Rue Hill Dolomites [Obsolete: use RHD] Rugby Member Ruinsival Member (Central Intrusion, Rum Layered Suite) [Duplicate: use RLC3] Ruinsval Member (Central Intrusion, Rum Layered Suite) Ruler Coal (Northumberland And Durham) Rum Central Complex Rum Central Complex [Duplicate: use RUMC] Rum Layered Suite Rum Layered Suite [Duplicate: use RUML] Rum Subswarm Rum Subswarm [Duplicate: use RUM] Rumbles Coal (Lothian) Rumer Coal (South Staffordshire) Rumney Formation [Obsolete: use WLLEV] Runabay Formation Runabay Head Formation [Obsolete: use DCRH] Runcton and Roxham Beds [Obsolete: use RURO] Runcton and Roxham Formation [Obsolete: use RURO] Runcton Beds [Obsolete: use RNB] Runcton Member Runton Cliffs Sand And Gravel Member Runton Member Runton Till Member Ruperra Limestone Member Rushall Formation Rushindoo Oolite Member Rushton Schist Rushton Schist [Duplicate: use RS] Rushy Knowe Limestone Rushy Park Coal (South Lancashire) Rusland Member [Obsolete: use BND] Ruthery Head Breccia Ruthven Semipelite Formation Rutland Formation Rutland Formation, Blisworth Limestone Formation And Blisworth Clay Formation (Undifferentiated) Rutland Formation, Snitterby Limestone Formation and Blisworth Clay Formation (undifferentiated) [Obsolete: use RBLBC] Ruyton Sandstone [Obsolete: use HEY] Ryazanian And Valanginian Rocks (Undifferentiated) Ryazanian To Barremian Rocks (Undifferentiated) Ryder Coal Ryder Coal (Warwickshire) Rye Water Head Sills Ryhope Five Quarter Coal (Northumberland And Durham) Ryhope Little Coal (Northumberland) Ryhope Little Marine Band [Local Name: see CWMB] Ryhope Marine Band [Local Name: see AGMB] Ryhope Sand Member Ryhope Sands [Obsolete: use RHYS] Rynaballoch Psammite Member Rynelrich Limestone Member Saailian to Weichselian mud, firm to hard (offshore) Saalian To Weichselian Channel Fill Deposits, Undifferentiated (Offshore) Saalian To Weichselian Diamicton, Firm To Hard (Offshore) Saalian to Weichselian gravel (offshore) Saalian to Weichselian mud and sand, interbedded (offshore) Saalian to Weichselian mud, very soft to soft (offshore) Saalian to Weichselian sand (offshore) Saalian To Weichselian Sediment, Undifferentiated, Affected By Mass Wasting And Iceberg Scour (Offshore) Sabden Shales [Obsolete: use SAML] Sabden Shales Formation [Obsolete: use SDSH] Saccammina Beds Sacquoy Sandstone Member Saddle Hill Granite Saddle Point Member Sailmhor Formation Sailmhor Group [Obsolete: use SMH] Saint Monace Harbour Coal Salachan Formation Sale Fell Minette Salen Pelite Formation Saliferous Marl [Obsolete: use ROX] Salisbury Craigs Sill Sallow Island Sands And Clays [Obsolete] Salop Formation Salperton Limestone Formation Salridge Coal (Bristol Area) Salsburgh Volcanic Formation Salt Extraction Subsidence [Obsolete: use DMDI] Salt Hill Cap Beds Salt Hill Knoll "Series" [Obsolete] Salt marsh deposits Saltash Formation Saltby Volcanic Formation Saltcoats Main Sill Salterella Grit [Obsolete: use SGQ] Salterella Grit Formation [Obsolete: use SGQ] Salterella Grit Member Salterella Grit or Quartzite [Obsolete: use SGQ, SLGT] Saltern Cove Formation Saltern Cove Formation (pars) [Obsolete: use WWYM] Salters Coal (Lothian) Saltford Shale Member Salthill Bank Beds [Obsolete: use BMNL] Salthill Cap Beds [Obsolete: use LMKL] Saltom Dolomite Saltoun Marine Band Saltpetre Coal (South Lancashire) Saltwick Coal (Northumberland) Saltwick Formation Saltwick Formation and Cloughton Formation (Undifferentiated) Saltwick Formation, Eller Beck Formation and Cloughton Formation (Undifferentiated) Samlesbury Formation Sampford Peverell Breccias [Obsolete: use SPBR] Sampford Peverell Member Sanaig Greywacke Formation Sanaigmore Phyllite Formation Sand and clay [Obsolete: use CA] Sand and gravel [Obsolete: use SGAO] Sand and gravel of uncertain age and origin Sand and gravel of unknown age [Obsolete: use SGAO] Sand and gravel of unknown origin [Obsolete: use SGAO] Sand Beck Nodule Bed Sand clay of 25 Foot Drift of Vale of York [Obsolete: use PAF] Sand Hole Formation Sand In Clay With Flints Sand in Creekmoor Clay Member [Obsolete: use CKMS] Sand of 25 Foot Drift [Obsolete: use HEM, THOR] Sand Rock Coal (South Lancashire) Sand Rock Mine Coal [Obsolete: use SRMC] Sand Voe Group Sand/Shale Unit [Obsolete: use HUGI] Sandbanks Limestone [Obsolete: use FFL] Sandend Formation [Obsolete: use FORD, SNDL, TNPL] Sandend Group (Upper Part) [Obsolete: use FORD] Sandend Group [Obsolete: use DASG, LIML] Sandend Harbour Limestone Member Sandersdean Limestone Sandford Orcas Marls Sandgate Beds (Undifferentiated) [Obsolete: use RGTB] Sandgate Beds [Obsolete: use PBS, SAB] Sandgate Formation Sandgate Formation And Hythe Formation (Undifferentiated) Sandhills Lodge Member Sandholes Coal (Glasgow) Sandhurst Gravel Sandness Formation Sandness Till Formation Sandringham Sand Formation, Roxham Member And Runcton Member (Undifferentiated) Sandringham Sands [Obsolete: use DEB, SAS] Sandringham Sands Formation Sandrock "Series" [Obsolete: use SIOW] Sandrock (Isle of Wight) [Obsolete: use SIOW] Sandrock Formation Sandrock or Sand Rock (Swinnerton And Kent, 1949) [Obsolete: use BRNS] Sands and gravels of Faringdon [Obsolete: use FSG] Sands And Gravels, Pleistocene Sands of 25-Foot Drift of Vale of York [Obsolete: use BIES, BREI, NABS, SKIS] Sandsfoot Beds [Obsolete: use SDT] Sandsfoot Clay Member Sandsfoot Formation Sandsfoot Grit Member Sandside Bay Formation [Obsolete: use SBSM] Sandside Bay Sandstone Member Sandside Sandstone Formation Sandsting Complex [Obsolete: use SDSTG] Sandsting Pluton Sandstone and Marl Group [Obsolete; use FWW] Sandstone of Cowleaze Down and Barnes High [Obsolete: use BHSA] Sandstones and Marls [Obsolete: use GAGO] Sandstones of Cutties Hillock (Quarry Wood) [Obsolete: use HMSF] Sandstones of Hopeman [Obsolete: use HMSF] Sandway Cellar Conglomerate Member Sandwell Coal (Fife) Sandwich Coal (Canonbie) Sandwich Marine Band [Local Name: see HTMB] Sandwick Fish Bed [Obsolete: use SFB] Sandwick Fish Bed Member Sandwick Member Sandwith Anhydrite Sandwith Dolomite Sandy and Micaceous Beds [Obsolete: use STA] Sandy Boulder Clay Sandy Braes Vent [Obsolete] Sandy Craig Beds [Obsolete: use SCB] Sandy Craig Formation Sandy Ferruginous Beds or Stone [Obsolete: use LECK] Sandy Ferruginous Limestones [Obsolete: use LECK] Sandy Haven Formation [Obsolete: use MOCL] Sandy Limestone [Obsolete: use LECK] Sandy Limestone: Arenaceous Limestone; Sandy Passage Beds [Obsolete: use MRF] Sandy Mouth Shale Sandy Series [Obsolete: use STA] Sandy Till Sandy's Creek Beds [Obsolete: use -1800] Sandy's Creek Formation [Obsolete: use SACR] Sandy's Creek Mudstone Formation Sangomore Formation Sangomore Group [Obsolete: use SGM] Sannox Siltstone Formation Sannox Siltstones [Obsolete: use SXS] Sanquhar Parrot Coal (Sanquhar) Santon Formation [Obsolete: use SNTN] Santon Member Santon Oolite [Obsolete: use LLL] Santon Oolite Member - Upper Leaf Only [Obsolete: use SNO] Santon Oolite Member [Obsolete: use CML, SNO] Sapling Clough Sandstone Sarclet Conglomerate Sarclet Group Sarclet Group And Black Isle Sandstone Group (Undifferentiated) Sarclet Sandstone Sarclet Sandstone and Conglomerate [Obsolete: use SAR] Sarclet Sandstone Group [Obsolete: use SAR] Sarn Complex Sarn Formation [Obsolete: use BRCS] Sarn Granite [Obsolete: use SRN] Sarn Hill Basalt Sarrowcole Vein Satturland Coal Satwell Gravel Member Satwell Member [Obsolete: use SWGR] Saugh Hill Formation [Obsolete: use SHSG] Saugh Hill Grits [Obsolete: use SHSG] Saugh Hill Grits Formation Saugh Hill Sandstones and Grits [Obsolete: use SHSG] Saughen Braes Lava Member Saughen Braes Lavas [Obsolete: use SBLA] Saughland Sill Saurian Beds [Obsolete: use WCT] Sawdde Sandstone Formation Saxa Vord Group Saxa Vord Pelite Formation Scaat Craig Beds Scad Vein Scafell Dacite Member Scaladal Sandstone Member Scalby Formation Scale Beck Till Member Scaleber Force Limestone Member Scaleber Quarry Limestone Member Scalehow Formation [Obsolete: use SCW] Scalehow Tuff Formation Scalford Sandstone Formation Scalp Hill Granite Scalpa Sandstone [Obsolete: use SCS] Scalpa Sandstone Formation [Obsolete: use SCS] Scalpay Granite Scalpay Sandstone Formation Scandal Beck Formation [Obsolete: use SBPT] Scandal Beck Limestone [Obsolete: use SCBL] Scandal Beck Limestone Formation Scandal Beck Peat Bed Scandinavian Drift [Obsolete: use WAHG] Scapa Sandstone Member Scaphites Bed (2) Scar Formation [Obsolete: use PPF] Scar House Beds Scar House Formation [Obsolete: use SHF] Scar Limestone [Obsolete: use SCL] Scar Limestone Member Scar Vein Scaraben Quartzite [Obsolete: use SCAB] Scaraben Quartzite Formation Scarba Conglomerate [Obsolete: use SCCO] Scarba Conglomerate Formation Scarborough Formation Scarborough Limestone [Obsolete: use SCR] Scarborough Limestone Series [Obsolete: use SCR] Scarden Sandstone Formation [Obsolete: use SCSM] Scarden Sandstone Member Scargill Grit Scarle Member [Obsolete: use SCSG] Scarle Sand and Gravel [Obsolete: use SCSG] Scarle Sand and Gravel Member Scarlett and Strandhall Beds [Obsolete: use SCPT] Scarlett Beds [Obsolete: use SCPT] Scarlett Point Member Scarlett Volcanic Formation [Obsolete: use SCV] Scarlett Volcanic Member Scarlett Volcanic Series [Obsolete: use SCV] Scart Grits Formation Scatsa Pelitic Group [Obsolete: use DASP] Scatsta Division Scatsta Division and Boundary Zone (Undifferentiated) Scatsta Pelite [Obsolete: use DASP] Scatsta Pelitic Formation Scatsta Quartzite [Obsolete: use SCAT] Scatsta Quartzitic Formation Scatsta Quartzitic Formation [Duplicate: use SCAT] Scatsta Quartzitic Group [Obsolete: use SCAT] Scattergate Sandstone Scatterigg Wandering Gas Coal Scaur Group Scawby Limestone [Obsolete: use LLL] Scawby Limestone Member [Obsolete: use SYL] Scawt Hill Plug Schichallion Boulder Bed [Obsolete: use DBST] Schiehallion Boulder Bed [Obsolete: use DBST] Schiehallion Boulder Bed Formation Schiehallion Dolomite [Obsolete] Schiehallion Quartzite [Obsolete: use DBSQ] Schiehallion Quartzite Formation Schistose Conglomerate [Obsolete: use LFC] Schistose Grit Group of Dart [Obsolete: use DART] Schists (Of Guernsey) School Limestone Schooner Formation Scissum Beds [Obsolete: use LECK] Scobbiscombe Sandstone Scobbiscombe Sandstones [Obsolete: use DRTM] Scolt Head Formation Scone Formation [Obsolete: use TEF, SCN] Scone Sandstone Formation Scoor Pelite Formation Scors Burn Schist Formation Scot's Brook Member Scotland Carboniferous-Permian Alkaline Suite Scotland Flags Scotland Late Carboniferous - Permian Lamprophyric Subsuite Scotsman Office Beds Scott Beds Scott Formation [Obsolete: use STAT] Scott Member (Sgiath Formation) [Obsolete: use PIBR] Scottish Coal Measures Group Scottish Highland Ordovician Minor Intrusion Suite Scottish Highland Siluro-Devonian Calc-Alkaline Minor Intrusion Suite (Other Than Dykes) Scottish Highlands Late Carboniferous To Permian Alkali Dyke Suite Scottish Highlands Ordovician Suite Scottish Highlands Silurian Suite Scottish Late Carboniferous To Early Permian Plugs And Vents Suite Scottish Lower Coal Measures Formation Scottish Middle Coal Measures Formation Scottish Middle Coal Measures Formation And Scottish Upper Coal Measures Formation (Undifferentiated) Scottish Stephanian to Early Permian Plugs and Vents Suite [Obsolete: use SCPPV] Scottish Upper Coal Measures Formation Scottsquar Hill Limestone Member [Obsolete: use SQAR] Scottsquar Member Scoughall Vent Scour Hollow Deposits Scourian Gneisses Scourie Dyke Swarm Scourie Metaclinopyroxene-Norite Subswarm [Obsolete: use BMCN] Scourie Metadolerite Subswarm [Obsolete: use SCOUR] Scout Hill Flags [Obsolete: use SCH] Scout Hill Formation [Obsolete: use KMF] Scrabo Sill Scrabster Flagstone Formation [Obsolete: use SFM] Scrabster Flagstone Member Scrach Formation Scrag Coal (Bristol Area) Scratchell's Marls (One) Scratchell's Marls (Three) Scratchell's Marls (Two) Scree [Obsolete: use TALU] Screening Embankment Screes Gill Formation Scremerston Coal Group [Obsolete: use SCG] Scremerston Coal Member Scremerston Formation Scremerston Main Coal Scresort Sandstone Member Scunthorpe Mudstone Formation Scunthorpe Mudstone Formation And Charmouth Mudstone Formation (Undifferentiated) Scunthorpe Mudstones [Obsolete: use SMD] Scunthorpe Mudstones Formation [Obsolete: use SMD] Seacliff Plug Seacliff Tower Vent Seaclose Park Gravel Member Seacombe Formation [Obsolete: use SCMBS] Seacombe Sand Formation Seafield Marine Band Seafield Tower Limestone Seafield Tower Sandstone Seafield-Deans Ash Seaford and Newhaven Chalk [Obsolete] Seaford Chalk Formation Seaford Chalk Formation And Newhaven Chalk Formation (Undifferentiated) Seaford Chalk Formation, Newhaven Chalk Formation And Culver Chalk Formation (Undifferentiated) Seaford Chalk Member [Obsolete: use SECK] Seagrove Bay Member Seaham Beds [Obsolete: use SEH] Seaham Formation Seaham Residue Sealyham Volcanic Formation Sealyham Volcanic Group [Obsolete: use SVO] Sealyham Volcanic Series [Obsolete: use SVO] Seamill Formation [Obsolete: use KBS] Seamill Sandstone Formation [Obsolete: use KBS] Seascale Glacigenic Formation Seascale Hall Member [Obsolete: use SEHA] Seascale Hall Tuff Member Seat Coal Seatallan Dacite Member Seathwaite Fell Formation [Obsolete: use SET] Seathwaite Fell Sandstone Formation Seathwaite Fell Tuffs [Obsolete: use SET] Seaton Carew Formation [Obsolete: use STCF] Seaton Carew Member Seaton Sluice Sandstone Seatown Sandstone Member Second (Worcester) Terrace of the Severn [Obsolete: use WORT] Second Abden Limestone Second Brimham Grit [Obsolete: use UPBM] Second Brown Metal Coal (West Yorkshire) Second Cromer Till [Obsolete: use WATI] Second Ell Coal (South Yorkshire, Nottingham And Derby) Second Ell Sill Second Grit [Obsolete: use CHG] Second Hosie Limestone Second Kingshaw Limestone Second Limestone (Cumbria) Second Limestone [Obsolete: use FFL] Second or Summertown-Radley Terrace Deposits [Obsolete: use SURA] Second or Wasperton Terrace (Deposits) [Obsolete: use WAT] Second Piper Coal (South Yorkshire, Nottingham and Derby) Second Smalley Coal (Leicester And Derby) Second St John's Coal (South Yorkshire And Derby) Second Terrace [Obsolete: use ME2] Second Terrace Deposits (River Severn) [Obsolete: use WORT] Second Terrace Deposits [Obsolete: use SURA, THSG, WAT] Second Terrace Gravels [Obsolete: use GREN] Second Terrace of the Ouse [Obsolete: use STGO] Second Terrace Of The Waveney (Moorlock Et Al,2000) Second terrace of warp [Obsolete] Second Wales Coal Second Waterloo Coal (Nottingham and Derby) Second Waterloo Sill Second, 20-Foot or Oxford Terrace Deposits [Obsolete: use SURA] Sedbergh Conglomerate Formation Sedg(E)Ley Limestone Sedgley Limestone [Obsolete: use AL] Sedgwicki Shales [Obsolete: use PCH] Sedgwickii Grits Facies (Caban Conglomerate Formation) Sedgwickii Grits Facies [Obsolete: use SED] Seeley Formation Seend Ironstone Formation Seggholm Micaceous Flagstones Seisdon Formation Seisdon Sand and Gravel Formation Selborne Group Selbornian (Stage) [Obsolete: use SELB] Selcoth Formation Sele Formation Selham Ironshot Sands [Obsolete: use SIS, RGTB] Selham Ironshot Sands Member Selker Till Sella Park Member [Obsolete: use SEP] Sella Park Tuff Member Sellafield Member Selsey "Division" [Obsolete: use SLSY] Selsey Formation [Obsolete: use SLSY] Selsey Sand Formation Seminula Oolite [Obsolete: use CNLL] Senhouse Coal (Cumbria) Senhouse Seam [Obsolete: use SNHS] Senni Beds [Obsolete: use SB] Senni Formation Senonian Greensand [Obsolete: use KOS] Senonian Greensands [Obsolete: use KOS] Separate Allt Odhar Peat and Odhar Gravel Formations [Obsolete: use MBP] Sergeantlaw Lava Member Sergeantlaw Lavas [Obsolete: use SLA] Serpent Brae Coal Serpent Brae Limestone Serpentine (Lizard Complex) Serpula Beds [Obsolete: use BW] Serpula Series [Obsolete: use BW] Serpulite Grit [Obsolete: use SGQ] Serpulite Grit Member [Obsolete: use SGQ] Serw Formation [Obsolete: use BGL, RBVO] Serw Volcanic Formation [Obsolete: use SER] Sessiagh Clonmass Formation [Obsolete: use DASC] Sessiagh-Clonmass Formation And Lower Falcarragh Pelite Formation (Undifferentiated) Setter Quartzite (?Formation) Seven Feet Banbury Marine Band [Local Name: see VDMB] Seven Feet Coal (Warwickshire) Seven Feet Marine Band [Local Name: see VDMB] Seven Foot Coal Seven Linns Coal Seven Linns Sandstone Seven Sisters Flint Seven-Feet Coal (South Wales) Seven-Feet-Yard Coal (South Wales) Seventeen Fathom Coal (Cumnock; South Ayrshire) Seventh Limestone (Cumbria) Seventh Limestone [Obsolete: use FRLI] Seventh Shale Member Seventy Fathom Post Member Severn and Avon Catchments Subgroup Severn Valley Formation Severnside Evaporite Bed [Obsolete: use SPRK] Sewer Outfall or Raised Pipe Embankment Sgaorishal Member Sgorr Mhor Sandstone Member Sgurr Marcasaidh Formation [Obsolete: use LOCE] Sgurr Na Stri Member Sgurr Nam Meann Quartz-Dolerite Ring-Dyke Sgurr Of Eigg Pitchstone Formation Shackleton Formation Shacklow Wood Basalt [Obsolete: use SWB] Shacklow Wood Lava [Obsolete: use SWB] Shacklow Wood Lava Member Shaftesbury Sandstone Member Shaftoe Coal (Northumberland) Shaftoe Grits Shafton Coal (West And South Yorkshire And Derbyshire) Shafton Marine Band Shakenhurst Sand and Gravel Shakespeare Cliff Member [Obsolete: use HCK, NPCH] Shale Coal (Glasgow Area; Central Coalfield) Shale Coal (North Ayrshire) Shale Grit Shale Grit Group [Obsolete: use SG] Shale Group [Obsolete: use MG] Shales-of-the-Cornbrash [Obsolete: use CAYC] Shales-of-the-Cornbrash Member [Obsolete: use CAYC] Shales-with-Beef [Obsolete: use SHWB] Shales-with-Beef Member Shales-with-Beef Member and Black Ven Marl Member (Undifferentiated) Shalloch Flagstone Formation [Obsolete: use SLH] Shalloch Formation Shallow Coal (South Staffordshire) Shallow Mine Working Shanaghy Green Beds Shandwick Clay Member Shandwick Siltstone Member Shane's Hill Rhyodacite Shanes Castle Andesite [Obsolete] Shank Castle Limestone Shank Wood Sandstone Shank's Castle Formation Shankend Beds Shanmaghery Sandstone Formation Shanmaghry Sandstone Formation [Obsolete: use TPMS] Shanmullagh Formation Shannochill Sandstone Member Shap Conglomerate Formation [Obsolete: use BBKS, SHWC] Shap Granite [Obsolete: use SHAP] Shap Limestone [Obsolete: use SHVI] Shap Pluton Shap Red Beds [Obsolete: use BBKS] Shap Village Limestone Formation Shap Wells Conglomerate Formation Shape Burn Limestone Shapwick Member [Obsolete: use BDNS] Sharkham Point Member Sharlston Low Coal (West Yorkshire) Sharlston Muck Coal (West Yorkshire) Sharlston Thin Coal (West Yorkshire) Sharlston Top Coal (South And West Yorkshire) Sharlston Yard Coal (South And West Yorkshire) Sharnberry Shell Bed Sharp's Hill Beds [Obsolete: use SHHB] Sharp's Hill Formation Sharp's Hill Formation and Fuller's Earth Formation (Undifferentiated) Sharpi Beds [Obsolete: use ROAD] Sharpley Porphyritic Dacite Shass Shale Member Shatterford Microgabbroic Sill Shawell Sand and Gravel Member Shearwater Salt Formation Shearwater Salt Formation [Duplicate: use SHWT] Sheen Sandstones Sheena Formation Sheena Sequence [Obsolete: use SHEE] Sheena Shale Member Sheep Bught Bed Sheep Bught Formation (Now Member) [Obsolete: use SBH] Sheep Bught Member [Obsolete: use SBH] Sheepcote Valley Flint Sheerbate Flags [Obsolete: use LRG] Sheiling Burn Vein Shell Band Limestone Shell bank deposits Shell Coal (Burnley) Shell marl Shellag Formation Shellband Coal Shellesder Member Shelley Plain Sandstone Shelloch Burn Group [Obsolete: use SHEB] Shelloch Burn Lava Member Shelly Beds and Weatherstones [Obsolete: use MHPL] Shelly Boulder Clay [Obsolete: use FOTI, WHGL] Shelly sands at 50ft OD [Obsolete: use KWSG, DGHS] Shelly Till [Obsolete: use FOTI] Shenley Limestone Bed [Obsolete: use SHEN] Shenley Limestone Member Shepherd's Chine Member Shepperton Gravel [Obsolete: use SHGR] Shepperton Gravel Member Sheppey Member Shepshed Sandstone Member Sherborne Sand and Gravel Member Sherburn Anhydrite Formation Sherburn Anhydrite Formation [Duplicate: use SNA] Sheriff Pit Oolite [Obsolete: use RDLI] Sheriffmuir Member [Obsolete: use SRF] Sheriffmuir Sandstone Member Sheringham Cliffs Formation Sheringham Member Sherrifmuir Formation [Obsolete: use SRF] Sherrycombe Beds [Obsolete: use SHCM] Sherrycombe Formation [Obsolete: use SHCM] Sherrycombe Member Shertcliffe Coal (West Yorkshire) Sherwood Sandstone Group Sherwood Sandstone Unit 1 Sherwood Sandstone Unit 2 Sherwood Sandstone Unit 3 Sherwood Sandstone Unit 3 Type (A) Sherwood Sandstone Unit 3 Type (B) Sherwood Sandstone Unit 3 Type (C) Sheskin Limestone Member Shetland (Albion) Glacigenic Subgroup Shetland Glacigenic Subgroup Shetland Granitic Suite Shetland Group Shetland Lower Dalradian [Obsolete] Shetland Ophiolite Complex Shetland Ophiolite Complex [Duplicate: use SHOP] Shettleston Sandstone Shiaba Group [Obsolete: use MORR] Shiaba Pelite Formation Shiant Isles Sills Shide Marl Shield Row Shields Bed Limestone Shiels Coal (Central Coalfield) Shilbottle Coal (Northumberland) Shilburnhaugh Coal Shineton Shale Formation Shineton Shales [Obsolete: use HBY, SHSH] Shingly Geo Limestone Shining Coal (Dungannon) Shinnel Formation Shinnel Formation And Glenlee Formation (Undifferentiated) Shipton Member Shipway Limestone [Obsolete: use BHL] Shira Limestone and Slate [Obsolete: use DBSL] Shira Limestone And Slate Formation Shirdley Hill Sand Formation Shirdly Hill Formation [Obsolete: use SSA] Shirdly Hill Sand [Obsolete: use SSA] Shirehampton Beds [Obsolete: use SHB] Shirehampton Formation Shoal High Formation Shoalshook Limestone [Obsolete: use SKL] Sholeshook Limestone Formation Shona Formation Shona Sequence [Obsolete: use SHNA] Shops Sandstone Formation [Obsolete: use SHSM] Shops Sandstone Member Shoreface and Beach Deposits (Undifferentiated) Shoreface deposits Shoreham Beds Shoreham Marls (One) Shoreham Marls (Two) Shorne Member Short Brow Flint Shothaugh Limestone [Obsolete: use BSDL] Shothouse Spring Tuff [Obsolete: use STT] Shothouse Spring Tuff Member Shotover Grit Sand [Obsolete] Shotover Ironsands [Obsolete: use WHS] Shotover Sands [Obsolete: use WHS] Shotover Sands/Shotover Iron Sands [Obsolete: use WHS] Shotto Wood Limestone Shotts Furnace Coal (Central Coalfield) Shotts Gas Coal (Central Coalfield) Shoulder O'Craig Vent Shouldham Sand and Gravel Formation Shouldham Sands [Obsolete: use SMSG] Shouldham Sands and Gravels [Obsolete: use SMSG] Shown as alluvium of Old Series maps of area [Obsolete: use ALV] Shown as Terrace 1 in south east of published sheets 308 (Bradworthy) [Obsolete: use TOR5] Shown as Terrace 1 on Okehampton Sheet (324) [Obsolete: use TAW5] Shown as Terrace 2 in south-east of published sheets 308 (Bradworthy) [Obsolete: use TOR6] Shown as Terrace 3 on South-East of Published Sheets 307 (Bude) and 308 (Bradworthy) [Obsolete: use TOR7] Shown as Terrace 4 on Okehampton Sheet (324) [Obsolete: use TAW8] Shown as Terrace 5 on Okehampton Sheet (324) [Obsolete: use TAW9] Shown as Terrace 5 on published 1:50k Sheet 324 (Okehampton) [Obsolete: use TOR9] Shown as Terrace 6 on Okehampton Sheet (324) [Obsolete: use TAW10] Shown as Terrace 7 on Okehampton Sheet (324) [Obsolete: use TAW11] Shrewsbury Formation Shrewsbury Glacigenic Formation Shunner Fell Limestone Shunner Fell Sandstone Shute Sandstone Formation Shuttle Coal (Lancashire) Sicklesmere Member Siddick Seam [Obsolete: use UNMJ] Side Pike Complex [Obsolete: use SIPI] Side Pike Volcanic-Complex Sides Farm Breccia Member Sides Farm Member [Obsolete: use SIFA] Sidgwick Avenue Member Sidmouth Mudstone Formation Sidmouth Mudstone Formation, Arden Sandstone Formation, Branscombe Mudstone Formation and Blue Anchor Formation (Undifferentiated) Signet Beds [Obsolete: use SI] Signet Member Silchester Gravel [Obsolete: use SIGR] Silchester Gravel Member Silesian Dyke (Within MCPAD) Silesian Intrusions (Within MCPAI) Silesian Rocks (Undifferentiated) Siliceous Shale Member Siliceous tufa Silicified Chalk [Obsolete: use GRIB, STRL] Silicified Limestone with Flint [Obsolete: use GRIB] Silkstone Coal (West and South Yorkshire, and Derbyshire) Silkstone Coal, Lower Leaf (West And South Yorkshire) Silkstone Coal, Upper Leaf (West And South Yorkshire) Silkstone Four Foot Coal (South Yorkshire) Silkstone Rock Siller Willie Coal (Midlothian) Sills in the Borrowdale Volcanic Group [Obsolete: use BVGS] Sillyhole Coal (Dalmellington) Silsden Formation Silsden Moor Grit [Obsolete: use SILS] Silsden Moor Grit Group [Obsolete: use SILS, SMGR] Silt Silt and clay of the 25 Foot Drift [Obsolete: use HEM, THOR] Silt Unit [Obsolete: use CYSA] Silts and Clays of 25-Foot Drift of Vale of York [Obsolete: use BREI, LHF] Silts and clays of the Vale of York [Obsolete: use ELV] Silurian And Devonian Rocks (Undifferentiated) Silurian Rocks (Undifferentiated) Silver Coal (North Staffordshire) Silver Hills Grit [Obsolete: use SLVS] Silver Hills Sandstone [Obsolete: use SILS] Silver Hills Sandstone Formation [Obsolete: use SLVS] Silver Threads Ironstone (South Staffordshire) Silverpit Evaporite Member Silverpit Formation Silverton Breccias [Obsolete] Silverton Lavas [Obsolete] Silvester's Bridge Marine Band [Local Name: see SFMB] Simmondley Coal Simonstone Limestone Sinclair Formation Sinclair Sequence [Obsolete: use SNCL] Singing Coal (South Staffordshire) Single Post Limestone Singleton Mudstone Formation [Obsolete: use SNM] Singleton Mudstone Member Sinniness Formation Sinniness Or Float Bay Formation Of The Rhins Of Galloway Sionascaig Meta-Olivine-Gabbro Subswarm Sir John Coal (South Lancashire) Sithean Glac An Ime Member [Obsolete: use TCA] Sithean Mor Laminated Gabbro Zone Sitwell Coal (Derbyshire And South Yorkshire) Sitwell Rock (Derbyshire) Six Feet Coal (Ingleton) Six Feet Coal [South Wales Coalfield] Six Foot Coal Six Inch Coal (South Lancashire and Goyt Trough) Six Inch Marine Band [Local Name: see SBMB] Six Inch Mine Coal [Obsolete: use SXMC] Six Quarters Coal (Cumbria) Six Yard Limestone Six-Feet Coal (South Wales) Sixteen Inch Coal Sixteen-Inch Coal (Dungannon) Sixth Limestone (Cumbria) Sixth Limestone To Seventh Limestone (Undifferentiated) (Cumbria) Sixth Shale Member [Obsolete: use LM6] Sixth Terrace (Deposits) [Obsolete: use SPHT] Sizewell Member Skadan Sandstone Member Skade Formation Skagerrak Formation Skaterigg Coal Skaw Granite [Obsolete: use SKAW] Skaw Intrusion Skea Sandstone Member Skeagh Plug Skegness Clay Formation Skelgill Beds [Obsolete: use SKB] Skelgill Formation Skelgill Member [Obsolete: use SKB] Skelgill Shales [Obsolete: use SKB] Skella Dale Burn Gneiss Formation Skelmersdale Albert Coal (South Lancashire) Skelmersdale Dam Coal (South Lancashire) Skelmersdale Earthy Delf Coal (South Lancashire) Skelmersdale Five Foot Coal (South Lancashire) Skelmersdale Four Foot Coal (South Lancashire) Skelmersdale Seven Foot Coal (South Lancashire) Skelmersdale Yard Coal (South Lancashire) Skelmorlie Conglomerate [Obsolete: use SKM] Skelmorlie Conglomerate Formation Skelmorlie Formation [Obsolete: use SKM] Skelton Coal (Canonbie) Skelton Limestone Skelton Marine Band [Local Name: see AGMB] Skene Member [Obsolete: use GORS, STRM] Skerries (Siliceous) [Obsolete] Skerries Conglomerates [Obsolete: use NK] Skerries Grit Formation [Obsolete: use NKSG] Skerries Grits [Obsolete: use NK] Skerries Group [Obsolete: use NK] Skerries Member Skerry Band [Obsolete: use MMG] Skerry Formation Skerry Group Skerry Rock [Igneous Intrusion] Skerry Sequence [Obsolete: use SKRR] Skerryvore Formation Skerrywhirry Plug Skibeden Shales Skiddavian (Series) [Obsolete: use SKG] Skiddavian [Obsolete: use SKG] Skiddaw Granite [Obsolete: use SKID] Skiddaw Grits [Obsolete: use LWF] Skiddaw Group Skiddaw Group (metasomatically altered) [Obsolete: use SKG] Skiddaw Group (Undifferentiated) (Crummock Aureole) Skiddaw Group (Undifferentiated) (Skiddaw Intrusion Aureole) Skiddaw Lava Member Skiddaw Pluton Skiddaw Slate Group [Obsolete: use SKG] Skiddaw Slates [Obsolete: use SKG] Skiff Sandstone Member Skillicore Member Skinnisfield Metagabbro Skipperton Coal [Airdrie-Falkirk] Skipperton Fireclay Skipsea Till Member Skipsey's Marine Band [Local Name: see AGMB] Skipton Castle Limestone Skipton Moor Grit Skipton Moor Grit Group (Bradford District) [Obsolete: use PENDL] Skipwith Common Sand Member [Obsolete: use SKIS] Skipwith Peat Bed Skipwith Sand Member Skittering Rock Shale Skomer Volcanic Group Skomer Volcanic Series [Obsolete: use SVG] Skrinkle Sandstones Subgroup Skroo Sandstone Member Skudiburgh Formation Skurley Till Member and Balantrath Members Of The Berridale Formation Skye Central Complex Skye Dyke Swarm Skye Lava Group Slab Horizon Slack Bank Rock Slack Lane Coal (Manchester Area) Slackdown Lava Member Slackgun Interbasaltic Beds [Obsolete: use SLAV] Slackgun Volcaniclastic Member Slade And Redhill Formation Slag Coal (Midgeholm) Slag Tip Slate Agglomerate [Obsolete: use CMSS] Slate Coal (Warwickshire) Slate Hill Andesite Slate Hill Trachyte Slate Quarry Beds [Obsolete] Slates and sandstones in Skiddaw Slates [Obsolete: use SKG] Slatog Coal (South Wales) Slattadale Member Slaty Coal (Cumbria) Slaty Law Plug Slaughterbridge Beds [Obsolete: use UDSL] Slea Valley Formation Sleaford Sand and Gravel Member Sleaford Sands and Gravels [Obsolete: use SLVY] Sleat Group Sleights Siltstone Slemish Plug Slides Sliding Stone Slump Breccia Member Sliepner Formation [Norwegian Classification: reserved for possible future use] Slieve Beagh Formation [Obsolete] Slieve Gallion Granite Slieve Gullion Complex Slieve League Formation Slieve Tooey Quartzite [Obsolete: use DBSO] Slieve Tooey Quartzite Formation Slievebane Group Slievebane Group [Duplicate: use SLI] Sligachan Formation Slingstane Limestone Slisgarrow Dolerite Slishwood Division Sloanstone Coal (Dalmellington) Slochd Psammite Formation Slockenray Formation [Obsolete: use SLO] Slockenray Hyaloclastite And Lava Formation Sloop Sandstone Member Slot Burn Formation Slyving Coal (Somerset) Slyving Vein [Obsolete: use SLYC] Small Coal (Somerset) Small Rider Coal (South Wales) Smallburn Sandstone Formation Smalley's Coal (South Derbyshire) Smaull Greywacke Formation Smeorail Formation Smiddy Ganister Smiddy Limestone Smith Bank Formation Smith Bank Sandstone unit Smith Coal (Bristol Area) Smith Coal (South Lancashire) Smith Coal (Titterstone Clee) Smith's Knoll Formation Smith's Vein Smiths Coal (North Wales) Smithy Burn Siltstone Formation Smithy Coal Smithy Coal (Fife) Smithy Coal (Mid And East Lothian) Smithy Coal (North Ayrshire) Smithy Coal (Warwickshire) Smoile Coal (Leicestershire) Snaefell Formation Snar Valley Breccia [Obsolete: use GDN] Snar Water Permian Breccia [Obsolete: use GDN] Snarra Ness "Group" Snarravoe Pelite Member Sneaton (Halite) Formation Sneaton Potash Member Snebro Gill Beds Sneinton Formation [Obsolete: use TPSF] Snettisham Beds [Obsolete: use SNC] Snettisham Clay [Obsolete: use SNC] Snettisham Clay Formation [Obsolete: use SNC] Snettisham Clay Member Snitterby Limestone Formation [Obsolete: use BWL] Snowdon Volcanic Group Snowdon Volcanic Series [Obsolete: use SV] Snowdrop Flints Snowshill Clay [Obsolete: use HFD] Soap Coal (South Wales) Soap Rider Coal (South Wales) Soar Valley Formation Soay Basic Magmatic Breccia Intrusion Sod Coal Sodbury Coal (Bristol Area) Sodic Granite [Obsolete: use BADG] Soft Bed Coal (West and South Yorkshire) Soft Bed Flags Soft Brick-Red Sandstones [Obsolete: use ARSS] Soft Coal Soil Solan Bank Formation Soldier Pool Conglomerate Member Soldiers' Point Beds Solent Catchments Subgroup Solent Group Solent River Formation Solid at or near surface [Obsolete: use SOL] Solid Geology Not Mapped [For Digital Map Use Only] [Obsolete: use BEDNM] Solport Coal Solution Cavity Infill (Undifferentiated) Solva Group Solva Series [Obsolete: use SOS] Solway Catchments Subgroup Solway Drift Group [Obsolete: use SYDR] Solway Esk River Terrace Deposits, 1 Member Solway Esk River Terrace Deposits, 1A Member Solway Esk River Terrace Deposits, 1A-C Solway Esk River Terrace Deposits, 1B Member Solway Esk River Terrace Deposits, 1C Member Solway Esk River Terrace Deposits, 2 Member Solway Esk River Terrace Deposits, 3 Member Solway Esk Valley Formation Solway Marine Band [Local Name: see VDMB] Somerset Catchments Subgroup Somerset Halite Formation [Obsolete: use SMHF] Somerset Halite Member Somerset Levels Formation Sompting Beds Soundwell Hard Venture Coal (Bristol Area) Sourlie Formation [Obsolete: use MVG] Sourlie Organic Silt Formation South Alwyn Valley Formation South Arran Sills South Arthurlie Coal South Brentor Beds [Obsolete: use SBT] South Brentor Formation South Brertor Formation [Obsolete: use BTN] South Britain Glacigenic Group [Obsolete: use ALBI, CALI] South Campsie Linear Vent-System South Charnwood Diorites South Charnwood Diorites Complex [Obsolete: use SCHD] South Coal (Lothian) South Harris Meta-Igneous Complex South Harris Paragneiss [Obsolete] South Kent Catchments Subgroup South Leicestershire Diorite Complex South Of Scotland Granitic Suite South Parrot Coal (Lothian) South Quarry Breccia Member South Quarry Slump Breccia Member [Obsolete: use SQBR] South Stack Formation South Stack Group [Obsolete: use NSS] South Street Beds South Street Flints South Street Marl South Threave Formation South Wales Coal Measures Group South Wales Lower Coal Measures Formation South Wales Lower Coal Measures Formation And South Wales Middle Coal Measures Formation (Undifferentiated) South Wales Middle Coal Measures Formation South Wales Middle Coal Measures Formation And South Wales Upper Coal Measures Formation (Undifferentiated) South Wales Upper Coal Measures Formation Southacre Clay and Lignite [Obsolete: use SO] Southacre Clay And Lignite Member Southacre Clay-and-Lignite Member [Obsolete: use SO] Southdean Plug Southerham Fingerflints Southerham Marls (One) Southerham Marls (Two) Southerly Down Sandstone Group [Obsolete: use CKF] Southern Bight Formation Southern Highland Group Southern Highland Group (Undivided) [Obsolete: use CGPS, MBPS] Southern Midland Valley Felsite Sills Southern Mountain Zone (Rum Central Complex) Southern Mountain Zone (Rum Central Complex) [Duplicate: use RUSM] Southern North Sea Deltaic Group Southern Porphyritic Granite (Western Red Hills Centre: Phase 3) Southern Scotland Dinantian Plugs And Vents Suite Southern Uplands Drift Group [Obsolete: use SUDR] Southern Uplands Glacigenic Subgroup Southerness Beds [Obsolete: use SOLM] Southerness Limestone Formation [Obsolete: use SOLM] Southerness Limestone Member Southrey Member [Obsolete: use SOYSG] Southrey Sand and Gravel Member Southrey Terrace Deposits [Obsolete: use THSG, CASSG, SOYSG] Southshore Formation Southwest England Minor Intrusive Suite Sowerthwaite Formation Spa Beds Spango Granodiorite [Obsolete: use SPAN] Spango Pluton Spara Bridge Formation [Obsolete: use TCH] Spargrove Limestone Member Spean Viaduct Quartzite Formation Speeton Beck Member Speeton Clay [Obsolete: use SPC] Speeton Clay Formation Speeton Series [Obsolete: use SPC] Speke Formation Spelsbury Gravel Member Spencroft Coal (North Staffordshire) Spengill Member Spernall Gypsum Sperus Formation Spetisbury Chalk Member Spey Conglomerate Formation Sphaeroidothyris Bed [Obsolete: use LEN] Spilite Group [Obsolete] Spilmersford Beds Spilmersford Intrusion Spilsby Beds of Spilsby Series [Obsolete: use SYS] Spilsby Sandstone [Obsolete: use SYS] Spilsby Sandstone Formation Spilsby Sandstone Formation And Sandringham Sand Formation (Undifferentiated) Spincha Burn Conglomerate Formation Spirean Mor Granite Sheet-Complex Spirifer Furcatus Band Spirorbis Limestone [Obsolete: use SPBL] Spirorbis Limestone Bed Spital Flagstone Formation Spital Flagstone Group [Obsolete: use SPIT] Spittal Flagstone Formation [Obsolete: use SPI] Splash Point Beds Splent Coal (Leicestershire) Splint Coal (Ballycastle, Northern Ireland) Sponge Bed [Obsolete: use CSP] Spongiarian Zone [Obsolete: use CSP] Sports Ground Spothfore Formation [Obsolete: use SPOT] Spothfore Member Spotted Beds [Obsolete: use SPB] Spotted Limestone Spout Of Ballagan Sandstone Spout of Ballochleam Group [Obsolete: use SPBA] Spout of Ballochleam Lava Member Spouty Dennans Bed Spouty Dennans Formation [Obsolete: use SPD] Spreads Spring Cove Lava Member Spring Hill Member [Obsolete: use SPHT] Spring Hill Sand and Gravel Member Spring Hill Terrace [Obsolete: use SPHT] Spring Hill Terrace Deposits (River Severn) [Obsolete: use SPHT] Spring Hill Terrace Deposits [Obsolete: use SPHT] Springpool Sandstone [Obsolete: use SPPS] Springpool Sandstone Bed Springpool Sandstone Member [Obsolete: use SPPS] Springwood Marine Band Sprinkling Tarn Member [Obsolete: use SPR] Sprinkling Tarn Sandstone Member Sprotbrough Member Spurlswood Shell Beds Spy Hole Limestone Spy Rigg Sandstone Spy Wood Grit [Obsolete: use SPW] Spy Wood Member [Obsolete: use SPW] Spy Wood Sandstone Formation Spy Wood Sandstone Formation [Duplicate: use SPW] Spynie Clay Formation [Obsolete: use SPYCL] Spynie Clay Member Sraduffy Member Sraduffy Member [Duplicate: use SRAD] Sralahan Shale Member Sranagross Member Srath Na Creitheach Centre [Skye Central Complex] Srath Na Creitheach Volcaniclastic Rocks (Skye Central Complex) Sron Bheag Schist [Obsolete: use AULY] Sron Garbh Semipelite Formation Sron Nan Dias Pelite And Limestone Formation Sronbane Coal (Ballycastle, Northern Ireland) Sronbane Coal [Obsolete: use SRNC] St Abbs Beds [Obsolete: use SBB] St Abbs Formation St Abbs Vent St Agnes Beds St Agnes Formation St Agnes Intrusion St Andrew's Castle Marine Band St Andrews Bay Member St Ann's Grit St Ann's Hill Pebble Bed St Anne's Hill Pebble Bed Member [Obsolete: use SAHP] St Asaph Drift [Obsolete: use SAGL] St Asaph Formation [Obsolete: use LLEYN] St Asaph Glacigenic Formation St Austell Intrusion St Baldred's Plug St Bees Evaporite Formation St Bees Sand and Gravel [Obsolete: use SBSG] St Bees Sand And Gravel Member St Bees Sandstone [Obsolete: use SBS, CHES] St Bees Sandstone Formation [Obsolete: use SBS] St Bees Sandstone Member St Bees Shale Formation St Bees Shales [Obsolete: use EDSH] St Bees Shales Formation [Obsolete: use SBSH] St Bees Silt Member St Bees silts and clays [Obsolete: use SBSI] St Bees Till [Obsolete: use GFSA, STBT] St Bees Till Member St Bernard Tuff Member St Catherines Graphitic Schist St Cynllo's Church Formation St Cyres Beds [Obsolete: use NSBR] St Cyres Breccias [Obsolete: use NSBR] St David's Granite [Obsolete: use SDIN] St David's Granophyre St David's Head Gabbro St David's Head Intrusion [Obsolete: use SDHI] St David's Intrusion [Obsolete: use SDIN] St Erth Beds [Obsolete: use SE] St Erth Formation St Fergus Pluton St Fergus Silt Formation St Fergus Silts [Obsolete: use SFSI] St George's Channel Formation St George's Down Gravel Member St Germans Tuff Member St Helen's Marine Band [Local Name: see CAMB] St Helen's Yard Coal (South Lancashire) St John's Knap Sandstone Formation [Obsolete: use SJKS] St John's Knap Sandstone Member St John's Rhyolite Formation St John's Rhyolite Formation [Duplicate: use BJR] St Kilda Centre St Kilda Igneous Complex [Obsolete: use STKI] St Kilda Western Gabbro Pluton St Leonard's Sill St Magnus Bay Group St Martin's Cemetery Beds St Martins Gravel St Mary's Bay Member St Mary's Well Bay Member St Marys Well Bay Formation [Obsolete: use STM] St Maughan's Group [Obsolete: use SMG] St Maughans Formation [Obsolete: use FWW] St Mellion Formation St Michael's Mount Intrusion St Monance Brecciated Limestone [Obsolete: use STMB] St Monance Little Limestone [Obsolete: use STML] St Monance White Limestone [Obsolete: use SMW] St Monans Brecciated Limestone [Obsolete: use HUR] St Monans Little Limestone St Monans White Limestone St Ninian Formation St Non's Sandstone [Obsolete: use SNSS] St Non's Sandstone Formation St Non's Sandstone Formation And Caerfai Bay Shale Formation (Undifferentiated) St Raven's Edge Member [Obsolete: use SRE] St Raven's Edge Tuff Member St Saviour's Andesite Formation St Saviour's Andesite Formation [Duplicate: use SAN] St Sunday Crag Tuff Member St Tudwal's Formation St Tudwal's Formation And Llanengan Formation (Undifferentiated) St Tudwal's Group [Obsolete: use STUD] St Tudwal's Sandstone [Obsolete: use STUD] St Tudwals Group [Obsolete: use STUD] Stabba Pelite Member Stable Pit Member Stable Pit Quartzite Member [Obsolete: use CBSP] Stac Fada Formation [Obsolete: use TASF] Stac Fada Member Stack Cleugh Oolite Stack Moor Beds Stack Skerry Formation Stackpole Limestone Formation Staddon Formation Staddon Grit of Trenance Point [Obsolete: use STG] Staddon Grits [Obsolete: use STG] Staffa Lava Formation Staffin Bay Beds [Obsolete: use STBA] Staffin Bay Formation Staffin Shale Formation Staffin Shale Formation And Staffin Bay Formation (Undifferentiated) Stafford Coal Stafford Halite Formation [Obsolete: use STHF] Stafford Halite Member Stafford Tonstein (North Staffordshire) Stainby Member Stainmore Forest Till Formation Stainmore Formation Staintondale Group [Obsolete: use ZG] Stair Hole Member Stairhead Coal (Lothian) Staithes Beds [Obsolete: use STA] Staithes Formation [Obsolete: use STA] Staithes Sandstone Formation Staithes Sandstone Formation And Cleveland Ironstone Formation (Undifferentiated) Stallion Hill Formation Stamford Member Stammers Vein Coal (Pembrokeshire) Stanah Member Stanbatch Conglomerate Member Stanbury Coal (West Yorkshire) Stanch Bullen Ironstone [Obsolete: use RDLI] Standing Coal (Somerset) Stanford Formation Stanhope Coal (South Derbyshire) Stanhope Coal (Warwickshire) Stanhope Coal [Obsolete: use SHPE, STAC] Stanley Limestone [Obsolete: use CMPL] Stanley Main (Lower) Coal (West Yorkshire) Stanley Main (Upper) Coal (West Yorkshire) Stanley Main Coal Stanley Main Coal (West Yorkshire) Stanley Sandstones Stanllyd Coal (South Wales) Stanmore Gravel Formation Stanmore Member [Obsolete: use STGR] Stanmore Pebble Gravel [Obsolete: use STGR] Stanners Hill Pebble Bed Stanningley Rock Stanton Coal (Northumberland) Stanton Formation Stanway Hill Formation [Obsolete: use HFD] Stanwix Shales Formation [Obsolete: use MMG] Staosnaig Phyllite Formation Stapeley Ash [Obsolete: use SYV] Stapeley Member [Obsolete: use SYV] Stapeley Shales Stapeley Volcanic Formation [Obsolete: use SYV] Stapeley Volcanic Group [Obsolete: use SYV] Stapeley Volcanic Member Stapleford Head Staplehill Gravel Member Starav Granite [Obsolete: use STRAV] Starav Intrusion Starfish Bed, Ashgillian Starfish Bed, Eocene Starkey Coal (Forest Of Dean) Starslee Coal Starston Member [Obsolete: use STIL] Starston Till [Obsolete: use STIL] Starston Till Member Start Complex Start Horneblende Schists Start Mica Schists Start Schists Stassfurt Halite Formation Statfjord Formation Statfjord Group [Obsolete: use BAKS] Statfjord Sand Formation [Obsolete: use STAT] Station Quarry Beds [Obsolete] Staunton Member Staurocephalus Limestone [Obsolete: use SWL, CYO] Steam Coal Steel Fell Diabase Steelend Upper Blackband Ironstone Stenkrith Brockram Stenton Sill Stewartby Member Stewartby Member And Weymouth Member (Undifferentiated) Stewartry Group Steyne Wood Clay Member Stickle Pike Member [Obsolete: use STPI] Stickle Pike Tuff Member Sticklepath Slate Stiddlehill Calcareous Beds Stidham Gravel Member Stidham Member [Obsolete: use BAV2] Stile End Beds [Obsolete: use SEN] Stile End Formation Stinchar Limestone [Obsolete: use SLF] Stinchar Limestone Formation Stink Coal (Milford, South Wales) Stink Vein [Obsolete: use SKCO] Stinkard Vein Coal (Pembrokeshire) Stinking Coal Stinking Coal (Ne Bristol) Stinking Coal (South Staffordshire) Stinking Coal (South Wales) Stinking Marine Band [Local Name: see VDMB] Stinking Rider Coal (South Wales) Stiperstones Quartzite [Obsolete: use STQ] Stiperstones Quartzite Formation Stirling Group [Obsolete: use INV] Stob Quartzite Member Stobo Slates [Obsolete: use SHIN] Stobs Castle Beds Stobswood Coal (Northumberland) Stobswood Marine Band Stobswood New Coal (Northumberland) Stockbridge Rock Member Stockdale Farm Formation Stockdale Group Stockdale Group [Duplicate: use STK] Stockdale Rhyolite [Obsolete: use YRL] Stockdale Rhyolite Formation [Obsolete: use YRL] Stockdale Rhyolite Member [Obsolete: use YRL] Stockdale Shale Formation [Obsolete: use STK] Stockdale Shales [Obsolete: use CMK, STK] Stockdale Shales, Undivided [Obsolete: use STK] Stockdale Subgroup [Obsolete: use STK] Stocked Head Quartz Porphyry Stockiemuir Sandstone Formation Stocking Lane Member [Obsolete] Stockingford Shale Group Stockingford Shales [Obsolete: use SSH] Stockings Coal (South Derbyshire) Stockport Conglomerate Stockport Formation Stockport Glacigenic Formation Stoer Group Stoke Goldington Member Stoke Goldington Member and Felmersham Member (Undifferentiated) Stoke Park Rock Bed Stoke Row Member Stomebarrow Beds [Obsolete: use BM] Stone Coal Stone Coal (Ayrshire) Stone Coal (Kilmarnock - Glasgow) Stone Coal (North Wales) Stone Coal (Northumberland And Durham) Stone Coal (South Lancashire) Stone Coal (West Yorkshire) Stone Gill Limestone [Obsolete: use STE] Stone Gill Limestone Formation Stone House Shale Formation Stone Mine Coal [Obsolete: use SNEC] Stoneacton Tuffs and Andesites [Duplicate: use ST] Stoneacton Tuffs and Andesites [Obsolete] Stonedelph Coal (South Lancashire) Stonedelph Mine Coal [Obsolete: use STDC] Stonefield Schist [Obsolete: use DBSS] Stonefield Schist Formation Stonehaven Beds [Obsolete: use CRN, CWE, SHG] Stonehaven Group Stonehead Sandstone [Obsolete: use COSS] Stonehouse Under Limestone [Obsolete: use BBLS] Stonepit Coal (Milford, South Wales) Stonepit Vein [Obsolete: use SPCO] Stonerag Coal (Somerset) Stonesfield Beds [Obsolete: use EYF] Stonesfield Slate [Obsolete: use EYF] Stonesfield Slate Beds [Obsolete] Stonesfield Slate Series [Obsolete: use EYF] Stoneside Hill Formation [Obsolete: use BFA] Stoneside Hill Tuffs and Lavas (part) [Obsolete: use STHI] Stonesty Tuff Stonesty Tuff Member [Obsolete: use STF] Stoneyquoy Sandstone Formation [Obsolete] Stony Coal Stony Coal (Lothian) Stony Coal (Somerset) Stoodfold Member Storakaig Limestone Member Storm beach [Obsolete: use STOB] Storm beach deposits Storm beach deposits, 1 Storm beach deposits, 2 Storm beach deposits, gravel Storm beach gravel, flint Storm beach gravel, limestone Storm gravel beach deposits [Obsolete: use SBDG] Stormy Bank Formation Stormy Bank Sequence [Obsolete: use STBK] Stormy Limestone Formation Stornoway Beds [Obsolete: use STW] Stornoway Formation Stornoway Formation, Blue Lias Formation (Hebrides), And Breakish Formation Stornoway Phyllite Formation Stotfield Calcareous Formation Stotfield Calcrete Formation Stotfield Cherty Rock Formation Stour Formation Stour Formation and Osmington Formation [Obsolete: use STOU] Stourbridge Beds Stourmouth Clays [Obsolete: use STMH] Stourmouth Silt Member Stourscombe Beds [Obsolete: use STB] Stourscombe Formation Stow Hill Sand And Gravel Member Stradreagh Siltstone-Mudstone Member [Obsolete] Stragglethorpe Grange Limestone [Obsolete: use SGGL] Stragglethorpe Grange Limestone Bed Straight Brae Vein Straiton Beds [Obsolete] Straiton Grit Formation Straiton Grits and Conglomerates [Obsolete: use STGC] Straiton Group [Obsolete: use STNG] Straiton Red Beds [Obsolete] Straiton Subgroup Straitstep Vein Strand Gneiss Formation Strandhall Beds [Obsolete: use SCPT] Strangford Group [Obsolete: use GALA] Strangways Formation Strath Fionan Banded Formation [Obsolete: use SFBS] Strath Fionan Banded Semipelite Formation Strath Fionan Banded Semipelite Formation, Strath Fionan Pale Limestone Formation And Tullochroisk Semipelite Formation (Undifferentiated) Strath Fionan Dark Schist and Limestone Formation [Obsolete: use TULS] Strath Fionan Limestone [Obsolete: use SFPL] Strath Fionan Pale Limestone Formation Strath Halladale Granite Strath Halladale Migmatite Complex Strath Halladale Migmatite Complex And Strath Halladale Granite (Undifferentiated) Strath Ossian Granitic Complex Strath Rannoch Beds Strath Rannoch Conglomerate Strath Rory Formation [See Also SRG] Strath Rory Group [See Also STRR] Strath Spey Formation Strath Suardal Formation Strath Suardal Limestone [Obsolete: use SSLL] Strath Tummel Succession [Obsolete: use GRGS] Strathaird Beds (Skye) Strathaird Limestone Formation Strathan Conglomerate Member Strathaven Formation Strathavon Lodge Calcareous Semipelite Member Strathavon Psammite Member Strathclyde Group Stratheden Group Stratheden Group And Inverclyde Group (Undifferentiated) Strathendrick Formation Strathfinella Hill Conglomerate Strathfinella Hill Conglomerate Formation [Obsolete: use STHC] Strathfinella Hill Conglomerate Member Strathgryfe Lava Member Strathgryfe Lavas, Upper Strathgryfe Lavas, Lower Strathgyrfe Lavas [Obsolete: use SGLA] Strathkelvin Clay And Silt Member Strathlethan Formation [Obsolete: use SNF] Strathlethan Sandstone Formation [Obsolete: use SNF] Strathlethan Sandstone Member Strathmore Beds [Obsolete: use SEG] Strathmore Group Strathnaver Granite Strathpeffer Group Strathspey Granite Strathsteven Mudstone Formation Strathtay Formation Strathtummel Subgroup Strathtummel Succession [Obsolete: use STEL] Strathy Complex Streak Coal (Somerset) Strensham Sand and Gravel Member Strensham Series [Obsolete: use BNT] Stretton Group Stretton Sand Member Stretton Series [Obsolete: use YST] Stretton Shale [Obsolete: use SNSH] Stretton Shale Formation Stretton Shale Formation [Duplicate: use SNSH] Stretton Shale Group [Obsolete: use SNSH] Striatulum Clays [Obsolete: use FXCL] Striatulum Shales (lower part) [Obsolete: use PMDS] Striatulum Shales (upper part) and Grey Beds (lower part) [Obsolete: use FXCL] Stricegill Grit Stricegill Limestone Strichen Formation Strichen Pluton Strinds Formation Stringocephalus Beds [Obsolete: use LHS] Striped Loams (Woolwich Formation) Striped Measures in Rossmore Mudstone [Obsolete: use RMM] Striped Sands [Obsolete: use SLOM] Striped Shale [Obsolete: use WLF] Strokestown Group Stroma Member Stronachullin Phyllite [Obsolete: use SWPH] Stronachullin Phyllite Member Stronchreggan Member Stronend Interbasaltic Beds [Obsolete: use STRV] Stronend Volcaniclastic Member Stronsay Group Strontian Pluton Stroud Formation [Obsolete: use SALS] Struan Flags [Obsolete: use GRAM] Struie Formation Struie Group [Obsolete: use STIE] Strumble Head Volcanic Formation Stubble Green Silt Member Stubbs Coal (South Lancashire) Stubbs Mine Coal [Obsolete: use STBS] Stubton Limestone [Obsolete: use STBL] Stubton Limestones Bed Stud Vein Coal (Pembrokeshire) Studfold Sandstone Member Studgill Formation [Obsolete: use SGIL] Studgill Tuff Formation Studland Chalk [Obsolete: use STCK] Studland Chalk Member Stump Cross Limestone Stumpy Coal Stumpy Coal (Warwickshire) Sturminster Pisolite Member Stwrin Coal (South Wales) Sty Head Tarn Member Styford Limestone Style End Grassing Beds [Obsolete: use SEN] Sub-Alton Sandstone Sub-Arden Keuper Marls [Obsolete: use SIM] Sub-Brooch Coal (Cannock) Sub-Brooch Marine Band [Local Name: see MTMB] Sub-carse peat [Obsolete: use FLMP] Sub-Ell Marine Band Sub-Glenfuir Marine Band Sub-Hartley Lingula Band Sub-Lodgement Lingula Band Sub-Oolite Bed Suballuvium Gravel Subcrenatum Marine Band Subcrenatum Sill Submerged forest Subsidence associated with a combination of Anthropogenic and Natcomplex Foundered Strata Subsumes river terrace deposits, alluvial fan deposits, head, alluvium and lacustrine deposits [Obsolete] Subsurface Structure (Undivided, Unrelated to Mining) Subtidal Deposits Succoth-Brown Hill Intrusion Succoth-Brown Hill Type Ultramafic Intrusion Sudbourne Member Sudbury Formation Sudmoor Point Gravel Member Suffolk Catchments Subgroup Suffolk Pebble Bed Sugar Loaf Member Sugar Sands Limestone Sugarbrook Member Suidheig Till Formation Suie Hill Formation Suisgill Semi-Pelite [Obsolete: use SUIS] Suisgill Semipelite Formation Sulby Flags Sulby Glen Formation Sulby Slump Breccia Sule Skerry Formation Sullom Formation Sully Beds (lower part) [Obsolete: use BAN] Sulphur Coal Sulphur Coal (Wyre Forest) Sulphur Rock Sumburgh Group Summer Isles Formation Summerhouse Sandstone Summertown-Radley Formation [Obsolete: use SURA] Summertown-Radley Member [Obsolete: use SURA] Summertown-Radley Sand and Gravel Member Summertown-Radley Sand And Gravel Member, Lower Facet Summertown-Radley Sand And Gravel Member, Upper Facet Summertown-Radley Terrace Deposits [Obsolete: use SURA] Summit Limestone Formation [Obsolete: use REL] Summit Pelite Member Sump Coal (Glasgow-Airdrie) Sun Vein Coal (South Wales) Sunderland Ground Formation Sunderland Slates [Obsolete: use KST] Sunkir Marble Member Sunninghill Sand Member Sunnyside Feldspathic Psammites [Obsolete: use SUNS] Sunnyside Limestone Sunnyside Psammite Member Sunnyside Sandstone Member [Obsolete: use SUNS] Superbilingue Marine Band [Obsolete: use R2C1] Superficial deposits Superficial deposits not mapped [For digital map use only] [Obsolete: use SUPNM] Superficial Theme Not Mapped [For Digital Map Use Only] Superstes Mudstone Formation Superstes Mudstone Formation [Duplicate: use SMU] Supra-Arden Keuper Marls [Obsolete: use BCMU] Supra-Pennant Formation [Obsolete: use GDB] Supra-Pennant Group [Obsolete: use GDB, SP] Supra-Pennant Measures [Obsolete: use GDB, SP] Supra-Pennant Series [Obsolete: use SP] Supratidal deposits Supratidal deposits (undifferentiated) [Obsolete: use STDU] Surface Sands Formation Surgill Shale Surgill Shale Member [Obsolete: use SLSH] Surgill Shales [Obsolete: use SLSH] Surrey Hill Gravel (Ninth Terrace) [Obsolete: use SUHG] Surrey Hill Gravel [Obsolete: use SUHG] Surrey Hill Gravel Member Susanna Vein Sussex Catchments Subgroup Sussex Ouse Valley Formation Sussex Rother Formation Sussex Rother Terrace Deposits [Obsolete: use RSX] Sussex Rother Terrace Deposits, 1 Member Sussex Rother Terrace Deposits, 2 Member Sussex Rother Terrace Deposits, 3 Member Sussex Rother Terrace Deposits, 4 Member Sussex Rother Terrace Deposits, 5 Member Sussex Rother Terrace Deposits, Facet 1a Sussex Rother Terrace Deposits, Facet 1b Sussex Rother Terrace Deposits, Facet 3a Sussex Rother Terrace Deposits, Facet 3b Sussex Valleys Formation [Obsolete: use SXCAT] Sussex White Chalk Formation [Obsolete: use WHCK] Sutherland Group Sutterby Marl [Obsolete: use SBM] Sutterby Marl Formation Sutterby Marl Formation And Skegness Clay Formation (Undifferentiated) Sutton Blown Sand Formation [Obsolete: use SUTN] Sutton Formation [Obsolete: use SUTN] Sutton Manor Marine Band [Local Name: see VDMB] Sutton Marine Band Sutton Sand Formation Sutton Walls Member Svarte Formation Swallow Wood Coal (West and South Yorkshire) Swallow Wood, Top Haigh Moor, Netherton Thick Coals Swallowcraig Coals (Sanquhar) Swallowdrum Coal Swallowdrum Coal Of Comrie Swanage Group Swannington Yard Coal (Leicestershire) Swannymote Breccia Member Swanscombe Member Swansea Beds [Obsolete: use SW] Swansea Five Feet Coal (South Wales) Swansea Formation [Obsolete: use SW] Swansea Four Feet Coal (South Wales) Swansea Member Swansea Member [Duplicate: use SW] Swansea Six Feet Coal (South Wales) Swansea Six-Feet Lower Coal (South Wales) Swansea Six-Feet Upper Coal (South Wales) Swansea Three Feet Coal (South Wales) Swansea Two Feet Coal (South Wales) Swanshaw Formation [Obsolete: use SWAS] Swanshaw Sandstone Formation Swarte Bank Formation Swatchway Beds [Obsolete: use SWT] Swatchway Formation Swch Gorge Tuff [Obsolete: use SGT] Swch Gorge Tuff Formation Sweeney Mountain Sandstone Swerford Beds [Obsolete: use HYSA] Swerford Member [Obsolete: use HYSA] Swettenham Formation [Obsolete: use CLCA, CNWCA, LUNV, MSYVA] Swillington Sandstone Swindale Limestone Formation Swindale Shale Formation [Obsolete: use AHL] Swinden Limestone Swindon Clay Swindon Coal Swineden Sand Bed Swinedon Member [Obsolete: use SWDEN] Swinley Clay Member Swinley Member Swinstone Bottom Marine Band Swinstone Middle Marine Band [Local Name: see G1B1] Swinstone Top Marine Band [Local Name: see SBMB] Swinton Potteries Coal Swinton Pottery Coal (West Yorkshire And Nottinghamshire) Swithland Camp Conglomerate Member [Obsolete: use CBSC] Swithland Camp Member Swithland Formation Swithland Greywacke Formation [Obsolete: use SWSL] Swithland Slates [Obsolete: use SWSL] Swordly Pelite Member Sycarham Member Sychnant Dolomite Formation Sychtyn Member [Obsolete: use LEEL] Syenite on Ridge between Scaw'd Law and Roger Law [Obsolete: use BALW] Syenite or Diorite Intrusions Syenites [Obsolete: use SLED] Syllavethy Pluton Sylvan Limestone Formation Sylvesters Bridge Marine Band [Obsolete: use SBRMB] Synalds Formation Synalds Formation [Duplicate: use SYGP] Synalds Group [Obsolete: use SYGP] Syringothyris Limestone Syston Sand and Gravel [Obsolete: use SYSG] Syston Sand and Gravel Member Syston Terrace [Obsolete: use SYSG] T Table Rocks Sandstone Tabular or sheet deposits Tai-Herion Flags [Obsolete: use TAH] Tai-Herion Member Tailbert Sandstone Formation Tait's Marine Band Taking Head Sill Tal y Fan Volcanic Formation Tal-Y-Gareg Member Taldwyn Coal (South Wales) Taliaris Formation Talisker Formation Talnotry Intrusion Talus Talus cone Talus cone, active Talus cone, inactive Talus, active Talus, inactive Talyllyn Mudstones [Obsolete: use CSW] Tamar Group Tamar Valley Formation Tambowie Lava Member Tambowie Lavas [Obsolete: use TBLA] Tampen Formation Tan Hill Coal Tan Hill Grit Tan Hill Grit Coal Tanderagee Chalk Formation Tanderagee Chalk Member [Obsolete: use TDC] Tanderagee Siliceous Ironstone Formation Tandinas Limestone [Obsolete: use TDL] Tandinas Limestone Formation [Obsolete: use LEEL] Tang Sandstone Formation [Obsolete: use POBS, TANG] Tang Sandstone Member Tangy Glen Shelly Clay Bed Tanhill Coal Tanhouse Limestone Tankersley Ironstone Tannadice Formation [Obsolete: use RHF, TEF, AHS] Tannadice Sandstone Member Tantallon Vent Taplow Gravel Formation [Obsolete: use TPGR] Taplow Gravel Member Taplow Terrace [Obsolete: use TPGR] Tappetknowe Lava Member Tappetknowe Lavas [Obsolete: use TKLA] Tappins Facies [Obsolete: use TAP] Tappins Formation [Obsolete: use TAP] Tappins Group Tarannon "Series" [Obsolete] Tarannon Mudstone Formation Tarannon Pale Shales [Obsolete: use CER] Tarbert Formation Tarbert Sub-Unit [Obsolete: use TARB] Tardree Rhyolite Complex Tarff Banded Formation Tarfside Group [Obsolete: use TPS] Tarfside Limestone [Obsolete] Tarfside Psammite Formation Target Coal (Sanquhar) Tarland Intrusion Tarn Crags Member [Obsolete: use TNCR] Tarn Crags Tuff Member Tarn Hows Formation [Obsolete: use THW] Tarn Hows Tuff Formation Tarn Moor Formation Tarn Moor Mudstone [Obsolete: use TMF] Tarn Moor Mudstones [Obsolete: use TMF] Tarnash Phyllite And Limestone Formation Tarnbrook Wyre Marine Beds Tarporley Siltstone Formation Tarporley Siltstone Formation and Sidmouth Mudstone Formation (Undifferentiated) Tarrant Chalk Member Tarrant Chalk Member And Spetisbury Chalk Member (Undifferentiated) Tarring Neville Flint Tarskavaig Group Tarskavaig Moines [Obsolete: use TARS] Tartan Hot Sands [Obsolete: use CHNT] Tartan Upper Piper Sand [Obsolete: use CHNT] Tartraven Limestone [Obsolete: use BLLS] Tarvie Psammite [Obsolete: use TAPS] Tarvie Psammite Formation Tarvie Psammitic Group [Obsolete: use TAPS] Tattershall Airfield Member [Obsolete] Tattershall-Kirkby Terrace Deposits [Obsolete: use THSG, CASSG] Tavy Formation Taw River Terrace Deposits, 1 Member Taw River Terrace Deposits, 10 Member Taw River Terrace Deposits, 11 Member Taw River Terrace Deposits, 2 Member Taw River Terrace Deposits, 3 Member Taw River Terrace Deposits, 4 Member Taw River Terrace Deposits, 5 Member Taw River Terrace Deposits, 6 Member Taw River Terrace Deposits, 7 Member Taw River Terrace Deposits, 8 Member Taw River Terrace Deposits, 9 Member Taw River Terrace Deposits, members 1 and 2 (undifferentiated) Taw River Terrace Deposits, members 2 and 3 (undifferentiated) Taw River Terrace Deposits, members 3 and 4 (undifferentiated) Taw River Terrace Deposits, members 5 and 6 (undifferentiated) Taw Valley Formation Tawnyunshinagh Limestone Member Tawstock, Hearson and Rubble Hills Formation [Obsolete: use COH] Tay Catchments Subgroup Tay Sandstone Member Tay-Earn Gravels Member Taynton Limestone Formation Taynton Limestone Formation, Hampen Formation and White Limestone Formation (Undifferentiated) Taynton Stone [Obsolete: use TY] Tayport Formation Tayport Formation [Duplicate: use TYPO] Tayvallich Lavas [Obsolete: use DBTV] Tayvallich Limestone [Obsolete: use DBTL] Tayvallich Limestone Formation Tayvallich Slate and Limestone [Obsolete: use DBTS] Tayvallich Slate And Limestone Formation Tayvallich Subgroup Tayvallich Volcanic Formation Tayvallich Volcanics [Obsolete: use DCTV] Tea Green and Grey Marls [Obsolete: use BAN] Tea Green Marl(s) [Obsolete: use TGM] Tea Kettle Hole Formation Tea-Green Marl [Obsolete: use BAN] Teal Sandstone Member Tealby Beds [Obsolete: use TBF] Tealby Formation Tealby Limestone [Obsolete: use TAL] Tealby Limestone Member Tears Point Limestone [Obsolete: use FPL] Teasses Main Coal Tedd Formation Teenie Coal (Lothian) Tees Laminated Clays [Obsolete: use TSDC] Tees-Side Formation [Obsolete] Teeside Group [Obsolete: use ZG] Teesside Clay Formation Teesside Group [Obsolete: use ZG] Teesside Sand And Gravel Formation Teifi Clay Formation Teifi Valley Formation Teign Chert Formation Teign Valley Group Teign Valley Group and Tintagel Group (Undifferentiated) Teignmouth Breccia Teilia Beds [Obsolete: use TLB] Teilia Formation Teindland Buried Soil [Obsolete: use TELND] Teindland Gravel and Teindland Lower Sand [Obsolete: use DHKG] Teindland Palaeosol Bed Teindland Palaeosol Formation Teirw Beds [Obsolete: use PEPL, TSI] Teirw Siltstone Formation Teist unit Teith Formation [Obsolete: use THF] Teith Sandstone Formation Telegraph Hill Sands Member Telpyn Point Sandstone Formation Telscombe Marls (Four) Telscombe Marls (One) Telscombe Marls (Three) Telscombe Marls (Two) Teme Palaeovalley Formation Temeside Beds [Obsolete: use TEB, TEG, TSH] Temeside Formation [Obsolete: use TEG] Temeside Group [Obsolete: use TSH] Temeside Mudstone Formation Temeside Mudstone Formation and Raglan Mudstone Formation (Undifferentiated) Temeside Shales Formation [Obsolete: use TSH] Tempar Dolomitic Member Tempellow, Rosenum and Mileport Slate Formation [Obsolete: use SAH] Temple Cloud Coal (Somerset) Temple Cloud Vein [Obsolete: use TCLC] Temple Cowley Member Temple Newsam Sandstone Templeman's Marine Band [Local Name: see LGMB] Templepatrick Rhyolite Ten Bands Ironstone Ten Fathom Grit Ten Feet Coal (Ingleton) Ten Foot Measures Ironstone Ten Quarters Coal (Cumbria) Ten-Feet Coal (North Staffordshire) Ten-Feet Rock (North Staffordshire) Tenby Group [Obsolete: use MARR] Tenuis Limestone Termon Formation Termon or Milford Pelites [Obsolete: use DBMI] Termon Pelites [Obsolete: use DBMI] Termon River Limestone Formation Termon River Limestone Formation, Bin Mountain Sandstone Formation And Ballyshannon Limestone Formation (Undifferentiated) Terrace 2 on Okehampton Sheet (324) [Obsolete: use TAW6] Terrace 3 on Okehamptonsheet (324) [Obsolete: use TAW7] Terrace 3a [Obsolete: use HAGR] Terrace 3c [Obsolete: use FIGR] Terrace of Warp [Obsolete: use MRWA] Terrington Beds Terschellingerbank Member Tertiary Beds [Obsolete: use BHGR] Tertiary Deposits [Obsolete] Tertiary Rocks (Undifferentiated)[Obsolete: use GNU] Tetragraptus Beds Tetragraptus Shales [Obsolete: use PED] Tetragraptus Shales Formation Tetworth Clay [Obsolete: use AMC] Thames Catchments Subgroup Thames Group Thames Valley Formation Thanet Base-Bed [Obsolete: use BSBD] Thanet Beds [Obsolete: use TAB] Thanet Formation Thanet Formation And Lambeth Group (Undifferentiated) Thanet Formation, Lambeth Group and Harwich Formation (Undifferentiated) Thanet Sand [Obsolete: use TAB] Thanet Sand Formation and Lambeth Group (Undifferentiated) [Obsolete: use TALM] Thanet Sands [Obsolete: use TAB] Thanet Sands Formation [Obsolete: use TAB] Thatcham Gravel Member The Bastard Sandstone Formation The Builth Volcanic Series [Obsolete: use BUVO] The Car Vent The Chalk [Obsolete: use CK] The Crackers Member The Ercall Igneous Intrusion The Fara Psammite Formation The Flats Stone Band The Forks Wash Pool Sandstone The Liethies Sill The Lower Basic Spilitic Group [Obsolete: use LBV] The Moy Upper Till Member [Obsolete: use BUTI] The Perna Bed [Obsolete: use PRNA] The Perna Mulleti Bed [Obsolete: use PRNA] The Sandstones of Spynie, Lossiemouth and Findrassie [Obsolete: use LMSF] The Sponge Gravels of Farringdon [Obsolete: use FSG] The Upper Tuffs [Obsolete: use BWT] The Wembury Siltstones [Obsolete: use DRTM] Thick Coal (Birmingham and South Staffordshire) [Duplicate: use THIC] Thick Coal (South Staffordshire) Thick Coal (Wyre Forest) Thick Coal Rock (South Staffordshire) Thick Coal Rock [Duplicate: use THIR] Thick Rock Thick Stone Thin Coal (Hanwood) Thin Coal (South Wales) Thin Coal (Warwickshire) Thin inconsistent bed of hard sandstone [Obsolete: use THHB] Thin Rider Coal (Warwickshire) Third (Main) Terrace of the Severn [Obsolete: use HHSG] Third Brown Metal Coal (West Yorkshire) Third Cromer Till [Obsolete: use RUTI, BGTI] Third Drumgray Coal Third Grit [Obsolete: use ASG] Third Limestone (Cumbria) Third Limestone To Fourth Limestone (Undifferentiated) (Cumbria) Third or Wolvercote Terrace Deposits [Obsolete: use WV] Third Post Limestone Third Shale Member Third Terrace (River Severn) [Obsolete: use MNT] Third Terrace [Obsolete: use ME3] Third Terrace Deposits [Obsolete: use WV, NIT] Third Terrace of the Ouse [Obsolete: use BIDM] Third Waterloo Coal (Nottingham And Derby) Third Waterloo Sill Third, Middle, 40 Foot or Wolvercot [sic] Terrace Deposits [Obsolete: use WV] Thirlmere Member [Obsolete: use TMR] Thirlmere Rhyolite [Obsolete: use TMR] Thirlmere Tuff Member Thirlstane Beds Thirlstane Sandstone [Obsolete: Use THSD] Thirlstane Sandstone Formation [Obsolete: use THSD] Thirlstane Sandstone Member [Obsolete: use THSD] Thirlwall Coal Thirty Six Fathom Coal (Cumnock; South Ayrshire) Tholeiitic Middle Basalt Member [Obsolete] Thoresway Sand [Obsolete: use CA] Thorganby Clay Member Thormaid Till Member Thornborough Grit [Obsolete: use TG] Thornborough Limestone [Obsolete: use THL] Thornbrough Grit Thornbrough Limestone Thornbury Beds [Obsolete: use THB] Thornbury Formation [Obsolete: use MOCL] Thorncliff Sandstones Thorncliffe Coal (South Yorkshire) Thorncombe Sand Member Thorncombe Sands [Obsolete: use TCSA] Thorncroft Sand Member Thorncroft Sands Member [Obsolete: use THS] Thorneyburn Limestone Thornford Beds [Obsolete: use FER] Thornhill Rock Thornhill Rock 1 (Lower) Thornhill Rock 2 (Middle) Thornhill Rock 3 (Upper) Thornhill Sandstone Formation Thornhill Sandstones [Obsolete: use THHS] Thornilee Slates Thornley Reef Conglomerate [Obsolete: use LMKL] Thornsgill Formation [Obsolete: use THGTI] Thornsgill Till Formation Thornthwaite Crag Tuff Member Thornton Limestone Member Thornton Limestone Member (Knoll-Reef) Thornton Mudstone [Obsolete: use KRM, THMU] Thornton Mudstone Member [Obsolete: use KRM] Thornton Shales With Limestone (Knoll-Reef) Thornton Shales-With-Limestone Thorny Force Sandstone [Obsolete: use WTRS] Thornylee Formation Thorpe Member [Obsolete: use THSG] Thorpe Sand and Gravel Member Thorpeness Member Thorr Pluton Thorverton Sandstone Formation Three Coals (South Wales) Three Foot Coal Three Foot Coal of Kilmux Three Quarter Coal (Coalbrookdale) Three Quarter Coal (Midgeholm) Three Quarter Coal (Northumberland) Three Quarter Coal (Titterstone Clee) Three Quarters Coal (Warwickshire) Three Quarters Coals (Milford, South Wales) Three Quarters Mine [Obsolete: use 3QCC] Three Quarters Mine Coal (South Lancashire) [Obsolete: use 3QCO] Three Quarters Veins [Obsolete: use 3QUC] Three Sisters Ignimbrite Member Three Tarns Member [Obsolete: use TTA] Three Tarns Sandstone Member Three Wells Sandstone Formation [Obsolete: use TWSA] Three Wells Sandstone Member Three Yard Coal (North Wales) Three Yard Limestone [Obsolete: use TYL] Three Yard Limestone Member Three Yards Limestone [Obsolete: use GML] Three-Quarter Coal (Northumberland And Durham) Threemile Formation Threequarters Coal (Leicestershire) Threequarters Coal (South Lancashire) Threequarters Coal (South Yorkshire, Nottingham And Derby) Threequarters Mine Coal Threlkeld Intrusion Threlkeld Member [Obsolete: use TKTI] Threlkeld Microgranite [Obsolete: use THKD] Threlkeld Till Formation Threshthwaite Crag Tuff Member Throstle Garth Basalt Member Throstle Garth Member [Obsolete: use TGH] Througham Member Througham Tilestone Formation [Obsolete: use THRG] Througham Tilestones Formation [Obsolete: use TT] Thrussington Till [Obsolete: use THT] Thrussington Till Member Thurfer Coal Thurso Group [Obsolete: use UCF] Thurstaston Hard Sandstone Bed Thurstaston Sandstone Member Thwaites Coal (West Yorkshire) Tibbie Pagan's Limestone Tibby Pagan's Limestone [Obsolete: use TILS] Ticknall Limestone Formation Tickwood Beds [Obsolete: use TKB] Tickwood Member Tidal bank deposits Tidal channel deposits [Obsolete: use TRD] Tidal Flat and Raised Beach Deposits (Undifferentiated) Tidal flat deposits Tidal flat deposits, 1 Tidal river or creek deposits Tidcombe Sand Member Tidcombe Sands [Obsolete: use TDS] Tievebulliagh Plug [Obsolete] Tieveragh Plug [Obsolete] Tiffany Conglomerate Member [Obsolete: use BRAE] Tighard Member Tighvein Sills (South Arran) Tilberthwaite Volcaniclastic Formation Tile Hill Marl Group [Obsolete: use TLM] Tile Hill Mudstone Formation Tile Hill Mudstone Formation and Meriden Formation [Duplicate: use MRTM] Tilestone [Obsolete: use HFD] Tilestones Formation Tilgate Stone [Obsolete: use CKST] Till Till (Irish Sea ice) Till and Morainic Deposits (Undifferentiated) Till and Morainic Deposits (Undifferentiated) Devensian Till Of "Early Scottish Glaciation" [Obsolete: use GCBTI] Till with northwest-southeast fabric [Obsolete: use CBTIL] Till, 1 Till, 2 Till, Anglian Till, Devensian Till, Devensian (Irish Sea ice) Till, Devensian (Welsh ice) Till, Mid Pleistocene Till, thin, on bedrock [see descriptions for limitations of use] Till, thin, overlying pre-Carboniferous rocks [see descriptions for limitations of use] Till, thin, overlying sedimentary cover [see descriptions for limitations of use] Tilley Coal (Northumberland and Durham) Tillite (Banffshire) [Obsolete: use DBIS, DBST, DBPT] Tillybrachty Sandstone Formation Tillybrachty Sandstones [Obsolete: use TIS] Tillybrex Sand and Gravel Formation Tillyfourie Pluton Tilmanstone Coal Tim Bobbin Rock Timber Vein Coal (Pembrokeshire) Timber Vein Coals (Undifferentiated) (Pembrokeshire) Timber Vein String Coal (Pembrokeshire) Timworth Gravel Member Tincorn Hill Intrusion Tincorn Hill Pluton [Obsolete: use TNHL] Tinklers Crag Sandstone Tintagel Group [Obsolete: use TVF] Tintagel Volcanic Formation Tintagel Volcanic Series [Obsolete: use TGP] Tintern Sandstone [Obsolete: use TSG] Tintern Sandstone Formation Tintern Sandstone Group [Obsolete: use TSG] Tinto Felsic Intrusion Tinwell Lodge Member Tir Edmond Coal (South Wales) Tirabad Formation Tircorran Limestone-Mudstone Member Tircrevan Sandstone Member Tirfergus Glen Limestone Tirnaskea Formation Tisbury Freestone and Ragstone [Obsolete: use TIY] Tisbury Glauconitic Member [Obsolete: use TIY] Tisbury Member Tissington Volcanic Member Tobaireach Conglomerate Member Tobar Ceann Siltstone Member Tobar Fuar Limestone Member Todber Freestone Member Todburn Limestone Todingill How Formation Todmorden Grit Toft Hill Beds [Obsolete: use TFH] Toft Hill Limestone And Shales Tollhouse Mudstone Bed Tom Anthon Mica Schist Formation Tom Croft Limestone Formation Tom Dubh Conglomerate Member Tom Dunan Schist Member Tom Na Fianaig Formation Tom's Cove Shale Tombstone Limestone Tombstone Limestone [Duplicate: use TMBL] Tomintoul Conglomerate [Obsolete: use TOMI] Tomintoul Group Tomintoul Sandstone [Obsolete: use TOMI] Tomnaverie Intrusion Ton Siltstone [Obsolete: use TSF] Ton Siltstone Formation Tonga Granite Tonge's Marine Band [Local Name: see AMMB] Tongue House Member [Obsolete: use LIT, GWD, GY] Tongwynlais Formation Tonlegee Shale Member Toomebridge Sandstone Formation Toories Pluton Top Anhydrite [Obsolete: use LIA, TPA] Top Beamshaw Coal (South Yorkshire) Top Beaumont Coal (Northumberland) Top Beeston Coal (West Yorkshire) Top Bench Coal (Warwickshire) Top Bensham Coal (Northumberland) Top Brass Thill Coal (Durham) Top Bright Coal (Vale Of Belvoir) Top Brockwell Coal (Northumberland And Durham) Top Brown Metal Coal Top Busty Coal (Northumberland and Durham) Top Coal ((Rothbury Area) Top Coal (Coalbrookdale) Top Coal (Somerset) Top Coatyards Coal (Northumberland) Top Crag Limestone Top Durham Low Main Coal (Northumberland And Durham) Top First Waterloo Coal (Derby) Top Five Quarter Coal (Northumberland And Durham) Top Fourth Waterloo Coal (Derby) Top Furnace Coal (South Lancashire) Top Furnace Mine Coal [Obsolete: use TOPF] Top Haigh Moor Coal (West Yorkshire) Top Hard Coal (South Yorkshire, Nottingham and Derby) Top Hard Rock Top Harvey Coal (Durham) Top Hebburn Fell Coal (Northumberland) Top High Main Coal (Derby) Top High Main Coal (Northumberland And Durham) Top Hosie Limestone Top Hosie Limestone And Second Hosie Limestone Top Hutton Coal (Durham) Top Limestone Top Little Coal (Somerset) Top Little Limestone Top Lousey Coal (West Yorkshire) Top Main Coal (Northumberland And Durham) Top Marine Band [Local Name: see CAMB] Top Marshall Green Coal (Northumberland And Durham) Top Maudlin Coal (Durham) Top Moorland Coal (Northumberland) Top Neddy Coal (South Lancashire) Top Neddy Mine Coal [Obsolete: use TNED] Top Netherwitton Coal (Northumberland) Top Of Broomhill Coal Top Palace House Thin Bed Top Plessey Coal (Northumberland) Top Robins Coal (South Staffordshire) Top Rock Top Rock (Birmingham) Top Rock Bed Top Ryhope Five Quarter Coal (Northumberland) Top Ryhope Little Coal (Northumberland And Durham) Top Saltwick Coal (Northumberland) Top Second Waterloo Coal (Derby) Top Shuttles Coal (South Lancashire) Top Soft Coal (Nottingham And Derby) Top Three Yards Coal (South Lancashire) Top Three Yards Mine Coal [Obsolete: use T3YD] Top Three-Quarter Coal (Northumberland And Durham) Top Tilley Coal (Northumberland And Durham) Top Usworth Coal (Northumberland And Durham) Top Vein [Obsolete: use TOCO] Top Victoria Coal (Northumberland And Durham) Top Wheatworth Coal (West Yorkshire) Top Whinmoor Coal (South Yorkshire) Top Yard Coal (Northumberland) Top Yard Coal (South Lancashire) Top Yard Mine Coal [Obsolete: use TYDC] Topped Mountain Sandstone Formation Topples Tops And Cracklers Coal (South Staffordshire) Tor Formation Torbanehill Gas Coal Torbay Breccia Formation Torbay Group Torduff Hill Brecciated Trachyte [Obsolete: use TDH] Torduff Hill Volcanic Formation [Obsolete: use TDH] Torduff Hill Volcanic Member Tore Hill Pluton Torllwyn Formation Tormentil Volcanics Tormitchell Conglomerate Member Tormore Psammite Formation Tormynydd Coal (South Wales) Tornahaish Dark Schist And Limestone Formation Tornmitchel Conglomerate [Obsolete: use TMS] Torphins Intrusion Torpoint Formation Torquay and Plymouth Limestones [Obsolete: use TQL, PYL] Torquay Limestone Formation Torquay Limestones [Obsolete: use TQL] Torr An Fhuich Psammite Torr Breac Sandstones [Obsolete: use AUSA] Torr Head Formation [Obsolete] Torr Head Limestone [Obsolete: use DBTR] Torr Head Limestone Formation Torr Na Moine Trachyte Plug Torr Na Truim Semipelite Formation Torran Member Torrance Four Inch Coal Torre Breccia Formation [Obsolete: use TOBR] Torridge River Terrace Deposits, 1 Member Torridge River Terrace Deposits, 2 Member Torridge River Terrace Deposits, 3 Member Torridge River Terrace Deposits, 4 Member Torridge River Terrace Deposits, 5 Member Torridge River Terrace Deposits, 6 Member Torridge River Terrace Deposits, 7 Member Torridge River Terrace Deposits, 8 Member Torridge River Terrace Deposits, 9 Member Torridge Valley Formation Torridon Group Torridon Sandstone [Obsolete: use TC] Torridonian [Obsolete: use T] Torridonian Supergroup [Obsolete: use WROS] Torrisdale Vein-Complex Torry Four Foot Coal (Fife) Tortworth Beds Torulian Limestone Member Totland Bay Member Tottenhill Gravels [Obsolete: use TOTL] Tottenhill Member Tottenhill Sand and Gravel Member Totternhoe Stone (Northern Province) Totternhoe Stone Member Tottlebank Member Touch House Group [Obsolete: use THLA] Touch House Lava Member Tourmaline schists of Glenelly North [Obsolete: use GLLY] Tournaisian And Visean Rocks (Undifferentiated) Toward Quay Grit Member Tower Wood Gravel Formation [Obsolete: use TWGR] Tower Wood Gravel Member Tower Wood Gravel, Buller's Hill Gravel And Aller Gravel (Undifferentiated) Town End Farm Member [Obsolete: use TOEF] Town End Farm Tuff Member Town Lane Coal (South Lancashire) Town Lane Mine Coal [Obsolete: use TLCO] Townburn Sandstone Member Townhead Boulder Gravel Member Townhead Coal (Northumberland) Townhouse Sandstone Townsend Tuff Bed Townsend Tuff Member [Obsolete: use TWT] Traboe Hornblende-Schist (Lizard Complex) Traboyack Division [Obsolete: use TRA] Traboyack Formation Traeth Bach Formation Traeth Bychan Limestone [Obsolete: use TRL] Traeth Bychan Limestone Formation [Obsolete: use CFML] Traeth Lligwy Formation Traligill Till Member [Obsolete: use ASGL] Tralorg Shale Formation Trambley Cove Beds [Obsolete: use TCF] Trambley Cove Formation Tranearth Group Tranent Four-Foot Coal Tranent Splint Coal Tranent Three-Foot Coal Transition Group (Devonian-Carboniferous) Transition Group (pars) [Obsolete: use YF] Transition Member Transition Series (Carstone and Shenley Limestone) of Johnson and Levell (1995) [Obsolete] Transition Series [Obsolete: use MHPS] Transitional Member (Western Intrusion, Rum Layered Suite) Transitional Member (Western Intrusion, Rum Layered Suite) [Duplicate: use RLW2] Translational slides Transport Corridor Trappoid Breccia [Obsolete: use CLT] Traprain Law Laccolith Trawden Limestone Group Trawenagh Bay Pluton Tre'r Ceiri Microgranite Intrusion Treborth Formation [Obsolete: use LGHL] Trecoed Beds Trecoed Sandstone Member Tredorn Beds [Obsolete: use TSL, TVY] Tredorn Phyllites [Obsolete: use TSL, TVY] Tredorn Slate Formation Treeton Rock [Obsolete] Trefawr Formation Trefdraeth Conglomerate Trefechan Formation Treffgarne Andesite Group [Obsolete: use TREV] Treffgarne Andesitic Series [Obsolete: use TREV] Treffgarne Bridge Beds Treffgarne Volcanic Formation Treffgarne Volcanic Group [Obsolete: use TREV] Treffgarne Volcanic Series [Obsolete: use TREV] Treffynnon Group Trefgarn Rhyolitic Series [Obsolete: use RRH, PRR] Trefor Limestone [Obsolete: use TLF] Trefor Limestone Formation [Obsolete: use CFML] Trefriw Mudstone Trefriw Tuff Formation Tregaron Formation Treginnis Group Treginnis Series [Obsolete: use PVT] Treglemais Group Tregonning Intrusion Tregonning-Godolphin Granite Trehills Sandstone Member Treiorworth Formation Treleague Metaquartzite Treleague Quartzite [Obsolete: use ZTQ] Trelowgoed Volcanic Formation Trelydan Shale Formation Tremadoc Beds [Obsolete: use DYN] Tremadoc Rocks (Undifferentiated) Tremadoc Slates [Obsolete: use DYN] Tremoge Glen Granite Tremuda Bay Volcanic Formation Trench Coal (Bristol Area) Trenchard Formation Trenchard Group [Obsolete: use TRGP] Trencher Coal (Warwickshire) Trencherbone Coal (South Lancashire) Trencherbone Mine Coal [Obsolete: use TRMC] Trencherbone Rock Trendrean Mudstone Formation Trent Catchments Subgroup [Obsolete: use TRWCA] Trent Formation [Obsolete: use CBP] Trent Formation plus Glen Parva Formation [Obsolete: use BCMU] Trent Formation plus the lower part of the Parva Formation [Obsolete: use BCMU] Trent Valley Formation Trent-Witham Catchments Subgroup Trentham Tonstein (North Staffordshire) Trentishoe Grits [Obsolete: use HOB, TGR] Trentishoe Member Tresglen Beds [Obsolete: use TNB] Tresglen Formation Tresham Rock [Obsolete: use TRR] Tresham Rock Formation Trevose Slate [Obsolete: use BEDN, SAH] Trevose Slate Formation [Obsolete: use SAH] Trevose Slate Formation And Rosenum Formation (Undifferentiated) Trewern Brook Mudstone Formation Treworgans Sandstone Member Treyarnon Slate Formation [Obsolete: use TVS] Treyarnon Slates [Obsolete: use TVS] Triassic Rocks (Undifferentiated) Triassic Rocks And Jurassic Rocks (Undifferentiated) Triassic Sandstone Trichrug Beds [Obsolete: use TRB] Trichrug Formation Trichwart Coal (South Wales) Tridwr Formation Triffleton Group Trigloin Coal (South Wales) Trigonia Clavellata Beds [Obsolete: use CLAV] Trigonia Grit [Obsolete: use UTG] Trilobite Dingle Shales Trilobite Shale [Obsolete: use DKG] Trimingham Clay Member Trimingham Clays [Obsolete: use IFLS] Trimingham Sand and Clay Member [Obsolete: use TRIMC, TRIMS] Trimingham Sand Member Trimmingham Chalk Trimsaran Marine Band [Local Name: see SOMB] Trinucleus Shales Triple Group Formation Triple Tabular Flints Triscombe Beds Triton Anhydritic Formation [Obsolete: use TTHY] Triton Formation Trochrague Vent Trolley Coal (Bristol Area) Tron Church Sandstone Troon Volcanic Formation [Obsolete: use TVL] Troon Volcanic Member Trosk Plug Trossachs Group Trostrey Limestone Member Trough Edge End Sandstone Troughton Beck Member Troutbeck Palaeosol Trowie Glen Sandstone Formation [Obsolete: use TGS] Trowie Glen Sandstone Member Trub Coal (West Yorkshire) Trusham Formation [Obsolete: use TMMU, TMSH] Trusham Mudstone Formation Trusham Shale [Obsolete: use TMMU] Trusham Shale Formation [Obsolete: use TMMU] Trwyn Cam Member Trwyn Glas Spilites Trwyn Pendalfa Mudstone Member Trwyn Y Bwa Mudstone Member Trwyn Y Fulfran Formation Trwyn yr Wylfa Member Tryddyn Half Yard Coal (North Wales) Tryfan Grit Group [Duplicate 1: use ACTG] Tryfan Grit Group [Obsolete: use FA] Tryfan Group [Obsolete: use ACTG] Trygarn Formation Trysull Member [Obsolete: use TSLSI] Trysull Sands and Gravel [Obsolete: use SDNSG] Trysull Silt Formation Tubbrid Sandstone Formation Tufa Tuff (Uriconian Group) [Obsolete: use UO] Tuffs and Agglomerates (Uriconian Group) [Obsolete: use UO] Tulaichean Schist Formation Tullagh Point Pluton Tullanaglare Mudstone Formation Tullochroisk Semipelite Formation Tullos Clay Member Tullyard Conglomerate Member Tullyclevaun Shale Member Tullykevin Formation Tullymore Limestone Member Tullyskeherny Member Tummel Psammite [Obsolete: use TUPS] Tummel Psammite Formation Tummel Quartzite [Obsolete: use TUMQ] Tummel Quartzite Formation Tummel Quartzites with Laminated Psammites [Obsolete: use TUMQ] Tumulites pseudobilinguis Marine Band Tumulites pseudobilinguis Marine Band [Duplicate: use E1B2] Tunbridge Wells Formation [Obsolete: use TWS] Tunbridge Wells Sand [Obsolete: use TWS] Tunbridge Wells Sand Formation Tunbridge Wells Sand Subgroup [Obsolete: use TWS] Tupton Coal (Nottingham and Derby) Tupton Rock Tupton Roof Coal (Nottingham) Turbot Anhydrite Formation Turbot Anhydrite Formation [Duplicate 1: use TBAN] Turbot Anhydrite Formation [Duplicate 2: use TBAN] Turbot Carbonate unit Turkeyland Member Tutbury Gypsum Tutbury Gypsum [Duplicate: use TUT] Tuttle Hill Member Tuttle Hill Quartzite [Obsolete: use THQ] Twechar Dirty Coal (Central Coalfield) Twechar Upper Coal (Glasgow Area; Central Coalfield) Twecher Dirty Coal [Obsolete: use TWD] Twecher Upper Coal [Obsolete: use TWU] Tweed Catchments Subgroup Tweed Subsuite Tweed Valley Formation Tweeddale Member Twelfth Limestone Twelve Foot Sandstone Twelve Inch Coal (South Derbyshire) Twente Formation Twenty Acre Gravel Member Twenty Fathom Coal (Cumnock; South Ayrshiore) Twenty Inch Coal (Forest Of Dean) Twenty Inch Coal (Sanquhar) Twenty Yard Rock (South Staffordshire) Twinhoe Beds [Obsolete: use TW] Twinhoe Member Twist Coal (North Staffordshire) Twiston Sandstone Member Two Coal (Somerset) Two Feet Coal (South Wales) Two Feet Six Coal (South Wales) Two Foot Coal (Cheadle) Two Foot Coal (Coalbrookdale) Two Foot Coal (Cumbria) Two Foot Coal (Glasgow Area; Central Coalfield) Two Foot Coal (Nottingham And Derby) Two Foot Coal (South Derbyshire) Two Foot Coal (South Lancashire) Two Foot Coal (South Staffordshire) Two Foot Coal (West Lothian) Two Foot Coal (Wyre Forest) Two Foot Rock Two Yard Coal (Cheadle) Two Yard Coal (North Wales) Two Yard Coal (Warwickshire) Two-Feet Nine Coal And Four-Feet Coals (Undifferentiated) (South Wales) Two-Feet Nine Coal, Four-Feet Coal And Six-Feet Coal (Undifferentiated) (South Wales) Two-Feet-Nine Coal (South Wales) Two-Feet-Nine Rider Coal (South Wales) Two-Foot Coal (North Staffordshire) Two-Foot Coal (West And South Yorkshire) Two-Foot Ironstone Seam Two-Foot Marine Band [Local Name: see MTMB] Two-Foot Vein Coal (Pembrokeshire) Twrch Sandstone Formation Twt Hill Granite Pluton Twyford Beds [Obsolete: use PNMF] Twyning Formation [Obsolete: use TWM] Twyning Mudstone Formation [Obsolete: use BCMU] Ty Cerryg Marine Band [Local Name: see EMMB] Ty Gwilym Sandstone Member Ty'r Gawen Formation [Obsolete: use TYGN] Ty'r Gawen Mudstone Formation Ty-Brith Mudstone Member Ty-Draw Slates Formation Ty-Mawr Formation Ty-Nant Limestone [Obsolete: use TNL] Ty-nant Limestone Formation [Obsolete: use LEEL] Tycwtta Mudstones Formation Tyfry Beds Tylacourt Coal (South Wales) Tyladu Coal (South Wales) Tyn-y-glyn Mudstone Formation [Obsolete: use NOG] Tyn-y-glyn Mudstone Member [Obsolete: use TYG] Tyncoed Sandstone Member Tyne and Wear Glaciolacustrine Formation Tyne Bottom Limestone [Obsolete: use TBL] Tyne Limestone Formation Tyne Limestone Formation And Alston Formation (Undifferentiated) Tyne Valley Formation Tyne-Wear Complex [Obsolete: use TYWE] Tynebottom Limestone Member Tyneholm Beds Tynet Burn Fish Beds Tyninghame Formation [Obsolete: use BGN] Tyrie Coal (Fife) Tyrone Basic Plutonic Complex [Obsolete: use TPG] Tyrone Central Inlier [Obsolete: use CORV] Tyrone Group Tyrone Igneous Series (Plutonic Rocks) [Obsolete: use TPG] Tyrone Igneous Series [Obsolete: use TVG] Tyrone Metamorphic Inlier [Obsolete: use CORV] Tyrone Plutonic Group Tyrone Volcanic Group Tywi Formation [Obsolete: use DEEVA] Tywi Valley Formation U Uamh Bheag Conglomerate [Obsolete: use UBCO] Uamh Bheag Conglomerate Formation [Obsolete: use UBCO] Uamh Bheag Conglomerate Member Udale Coal (Cumbria) Udny-Pitmedden Intrusion Ugbrooke Park Beds [Obsolete: use UGST] Ugbrooke Park Sandstones [Obsolete: use UGST] Ugbrooke Sandstone Formation Ugie Clay Formation Uig Hills - Harris Granite Complex [Obsolete: use UIGH] Uig Hills - Harris Igneous Complex Uig Hills - Harris Igneous Complex: Vein Complex (Marginal Zone) Uig Hills - Harris Igneous Complex: Vein Complex [Central Zone] Uist Member Ulbster Sandstone Formation Ulbster/Ires Geo Sandstone Ulbster/Riera Geo Mudstone Ulceby Marl Ullapool Gneiss Ullapool Gravel Formation Ullstone Formation Ullswater Group [Obsolete: use BFA] Ulpha Andesite Formation Ulpha Andesites [Obsolete: use ULP] Ulpha Formation [Obsolete: use ULP] Ulster Canal Formation Ulster Glacigenic Group Ulster White Limestone Group Ummoon Formation Un-named Permian sandstone of desert dune origin [Obsolete: use CCK, THHS] Unapool Till Member [Obsolete: use ASGL] Unbedded drift [Obsolete: use FL] Unclassified Igneous Rock, Early Devonian Unclassified Igneous Rock, Ordovician Unclassified Igneous Rock, Ordovician To Silurian Unclassified Igneous Rock, Permian Under Coal [Obsolete: use LDIC] Under Dunnet Shale Under Limestone Under Limestone Bed Under Oolite or Oolyte [Obsolete: use INO] Under Smithy Lingula Band Under Vexhim Coal Underbarrow Flag Formation [Obsolete: use KMF] Underbarrow Formation And Kirkby Moor Formation (Undifferentiated) Underfoot Coal (Machrihanish) Underground Space Creation Underground Space Excavation Underset Chert Underset Limestone [Obsolete: use FFL] Undifferentiated part of Borrowdale Volcanic Group [Obsolete: use EVG] Undifferentiated Red Beds Undifferentiated Upper Pleistocene Formation Undifferentiated Upper Pleistocene Sequence [Obsolete: use UUP] Undivided Lower Greensand [Obsolete: use BKGS] Unidentified Marine Band (Pennine Lower Coal Measures Formation) Unidentified Marine Band (Pennine Middle Coal Measures Formation] Unidentified Marine Band (Pennine Upper Coal Measures Formation) Union Coal (Burnley) Unit 1 [Obsolete: use BCTI] Unit A [Obsolete: use LSTI] Unit B of Ellison et al., 2004 [Obsolete: use OCKD] Unit B of Jardine et al., 1988 [Obsolete: use LTND] Unit C of Ellison et al., 2004 [Obsolete: use AVLY] Unit C of Jardine et al., 1988 [Obsolete: use AHSG] Unit D [Obsolete: use SOSI] Unit D, Wether Law Linn Formation [Obsolete: use LAR] Unit E [Obsolete: use ESHTI] Unit E, Wether Law Linn Formation [Obsolete: use BDD] Unit F of Ashton, 1975 [Obsolete: use SYL] Unit F of Jardine et al., 1988 [Obsolete: use AWTI] Units A to C, Wether Law Linn Formation [Obsolete: use GHD] Unknown Stratigraphy Of Any Age [For Use In Borehole Logs Only] Unnamed andesites [Obsolete: use BDBR] Unnamed conglomerate within the Dorrery Sandstone Formation [Obsolete: use BDCM] Unnamed dacite [Obsolete: use PLPD] Unnamed Dyke (Age Unknown) Unnamed Dyke, Carboniferous Unnamed Dyke, Devonian Unnamed Dyke, Dinantian Unnamed Dyke, Late Caledonian Unnamed Dyke, Late Carboniferous To Early Permian Unnamed Dyke, Late Neoproterozoic Unnamed Dyke, Late Palaeozoic Unnamed Dyke, Late Silurian To Early Devonian Unnamed Dyke, Neoproterozoic Unnamed Dyke, Ordovician Unnamed Dyke, Palaeogene Unnamed Dyke, Permian Unnamed Dyke, Pre-Caledonian Unnamed Dyke, Tertiary [Obsolete: use UDG] Unnamed Dyke, Westphalian Unnamed E Seam (West Cumbria) Unnamed Extrusive Rocks Of Unknown Age Unnamed Extrusive Rocks, Cambrian Unnamed Extrusive Rocks, Cambrian To Ordovician Unnamed Extrusive Rocks, Carboniferous Unnamed Extrusive Rocks, Cretaceous Unnamed Extrusive Rocks, Devonian Unnamed Extrusive Rocks, Devonian To Carboniferous Unnamed Extrusive Rocks, Dinantian Unnamed Extrusive Rocks, Namurian Unnamed Extrusive Rocks, Neoproterozoic Unnamed Extrusive Rocks, Ordovician Unnamed Extrusive Rocks, Palaeocene Unnamed Extrusive Rocks, Palaeogene Unnamed Extrusive Rocks, Palaeoproterozoic Unnamed Extrusive Rocks, Permian Unnamed Extrusive Rocks, Silesian Unnamed Extrusive Rocks, Silurian Unnamed Extrusive Rocks, Silurian To Devonian Unnamed F Seam (West Cumbria) Unnamed G Seam (West Cumbria) Unnamed H Seam (West Cumbria) Unnamed I Seam (West Cumbria) Unnamed Igneous Intrusion Of Unknown Age Unnamed Igneous Intrusion, Arenig Unnamed Igneous Intrusion, Cambrian Unnamed Igneous Intrusion, Cambrian To Ordovician Unnamed Igneous Intrusion, Carboniferous Unnamed Igneous Intrusion, Carboniferous to Permian Unnamed Igneous Intrusion, Devonian Unnamed Igneous Intrusion, Devonian To Carboniferous Unnamed Igneous Intrusion, Dinantian Unnamed Igneous Intrusion, Early Caledonian Unnamed Igneous Intrusion, Early Palaeozoic Unnamed Igneous Intrusion, Late Caledonian Unnamed Igneous Intrusion, Late Silurian To Early Devonian Unnamed Igneous Intrusion, Neoproterozoic Unnamed Igneous Intrusion, Ordovician Unnamed Igneous Intrusion, Ordovician To Silurian Unnamed Igneous Intrusion, Palaeogene Unnamed Igneous Intrusion, Palaeoproterozoic Unnamed Igneous Intrusion, Permian Unnamed Igneous Intrusion, Pre-Caledonian Unnamed Igneous Intrusion, Pre-Caledonian To Early-Caledonian Unnamed Igneous Intrusion, Proterozoic Unnamed Igneous Intrusion, Silesian Unnamed Igneous Intrusion, Silurian Unnamed Igneous Intrusion, Type And Age Unspecified Unnamed Igneous Intrusion, Westphalian Unnamed Igneous Rocks Of Palaeogene Age Unnamed Igneous Rocks, Devonian (Undifferentiated) Unnamed Igneous Rocks, Devonian To Carboniferous (Undifferentiated) Unnamed Intrusive Rocks, Cretaceous Unnamed J Seam (West Cumbria) Unnamed limestone [Obsolete: use LUSA] Unnamed Marine Band of Cancelloceras cumbriense Zone Unnamed Metamorphic Rocks, Neoproterozoic Unnamed Metamorphic Rocks, Pre-Caledonian To Caledonian Unnamed Metamorphosed Igneous Rocks, Caledonian Unnamed Metamorphosed Igneous Rocks, Pre-Caledonian To Caledonian Unnamed Metasedimentary Rocks, Neoproterozoic Unnamed Mineral Flat In Carboniferous Limestone [Age Of Emplacement Unspecified] Unnamed Plugs And Vents, Carboniferous To Permian Unnamed Pluton, Devonian Unnamed Pluton, Late Palaeozoic Unnamed Pluton, Neoproterozoic III Unnamed Pluton, Ordovician Unnamed Pluton, Ordovician To Silurian Unnamed Pluton, Permian Unnamed Pluton, Westphalian Unnamed Sandstone Of Arnsbergian Age (In Millstone Grit Group) Unnamed Sandstone Of Arnsbergian To Alportian Age (In Millstone Grit Group) Unnamed Sandstone Of Kinderscoutian Age (In Millstone Grit Group) Unnamed Sandstone Of Marsdenian Age (In Millstone Grit Group) Unnamed Sandstone Of Marsdenian To Yeadonian Age (In Millstone Grit Group) Unnamed Sandstone Of Pendleian Age (In Millstone Grit Group) Unnamed Sandstone Of Pendleian To Alportian Age (In Millstone Grit Group) Unnamed Sandstone Of Yeadonian Age (In Millstone Grit Group) Unnamed Sedimentary Rocks, Neoproterozoic Unnamed Sill, Devonian Unnamed Sill, Dinantian Unnamed Sill, Late Carboniferous To Early Permian Unnamed Sill, Late Neoproterozoic Unnamed Sill, Late Palaeozoic Unnamed Sill, Late Silurian To Early Devonian Unnamed Sill, Ordovician Unnamed Sill, Ordovician To Silurian Unnamed Sill, Palaeogene Unnamed Sill, Permian Unnamed Sill, Westphalian Unnamed till of Irish Sea provenance at Four Ashes [Obsolete: use BDTI] Unnamed Volcanic Rocks Of Any Age Unspecified Lingula Band Unspecified Marine Band Unspecified Mussel Band Unspecified Planolites Band Unst Phyllite Group Unweathered Kirkhill Till [Obsolete: use HYTIL] Unweathered Mesozoic till [Obsolete: use CORSE] Upcott Slates Formation Upgang Formation Upnor Formation Upper "Ostrea" Beds and Belemnite Sands [Obsolete: use STBA] Upper Abdon Limestone [Obsolete: use UAL] Upper Abdon Limestone Member Upper Acid Group [Obsolete: use CYLF] Upper Acid Volcanic Group [Obsolete: use CGU, CYLF] Upper Alston Group [Obsolete] Upper Alton Coal Upper and Lower Findon Conglomerate [Obsolete: use GDC] Upper and Lower Hibernian Greensands [Obsolete: use HBG] Upper And Lower Llwydcoed Coals Upper and Lower Whitcliffe Formations [Obsolete: use WHIT] Upper Anhydrite [Obsolete: use SNA] Upper Antiquatonia Band Upper Ardross Limestone Upper Argillaceous Beds [Obsolete: use HSW] Upper Bagshot Beds [Obsolete: use CMBS] Upper Bagshot Sands [Obsolete: use CMBS] Upper Bailey Hill Beds [Obsolete: use BAI] Upper Bampton Limestones [Obsolete: use BLEY, BPLM] Upper Band Coal (Leicester And South To North Derbyshire) Upper Band Marine Band [Local Name: see LGMB] Upper Band Rock Upper Banton Smithy Coal Upper Basalt Formation Upper Basic (Volcanic) Group [Obsolete: use PGA] Upper Basic Volcanic Group Upper Bath-House Wood Limestone Upper Beenham Grange Gravel Upper Bembridge Marls Upper Bench Coal (Warwickshire) Upper Bentham Grit Upper Bernician [Obsolete: use MLG] Upper Beryl Sand [Obsolete: use HUGI] Upper Birkhill Shales Upper Bishopsmoat Beds Upper Black Coal (South Wales) Upper Blackbird Coal (Lothian) Upper Blaisdon Beds Upper Blue-Black Slates [Obsolete: use TCF] Upper Bluers Coal (South Wales) Upper Bodenham Beds Upper Border Group [Obsolete: use TYLS] Upper Boulder Clay [Obsolete: use FWTI, GOGL, HMTI, PKSA, PLBT, RSTI, STPTG] Upper Bowland Shale Formation [Obsolete: use BSG] Upper Brent Sandstone Member [Obsolete: use TARB] Upper Brimham Grit Upper Bringewood Beds Upper Brioverian Group Upper Broadford Beds [Obsolete: use ADS, BFB] Upper Brodini Coal (South Wales) Upper Building Stones [Obsolete: use CHK] Upper buried soil [Obsolete: use FSLCK] Upper Caered Mudstones [Obsolete: use NYB] Upper Caithness Flagstone Formation [Obsolete: use UCF] Upper Caithness Flagstone Group [Obsolete: use UCF] Upper Caithness Flagstone Subgroup Upper Caithness Flagstones Upper Calcareous Grit [Obsolete: use UCG, SDT] Upper Calcareous Grit Formation Upper Calciferous Sandstone [Obsolete: use DLN] Upper Calciferous Sandstone Measures [Obsolete] Upper Calciferous Sandstones [Obsolete: use AF] Upper Calmy Limestone Upper Cambrian Shales [Obsolete] Upper Cambrian, Including Tremadoc Upper Camregan Grits Formation Upper Cannel Coal (South Derbyshire) Upper Cannel Coal (South Lancashire) Upper Cardenden Smithy Coal (Fife) Upper Carstone [Obsolete: use CA] Upper Ceiswyn Beds [Obsolete: use CNE] Upper Cemetery Beds Upper Chalk (lower part) [Obsolete: use BCK] Upper Chalk (White Limestone) and Lower Chalk (Glauconitic Chalk) [Obsolete: use UWLF] Upper Chalk [Obsolete: use UWLF, FCK] Upper Chalk Formation Upper Chalk Formation and Middle Chalk Formation (Undifferentiated) [Duplicate: use MUCK] Upper Channel Deposits [Obsolete: use COP] Upper Charles Coal (South Staffordshire) Upper Churnet Shales Upper Clay Member (Breydon Formation) Upper Clays [Obsolete: use PELC] Upper Claystone (Gault) Upper Clifton Down Limestone Formation [Obsolete: use CDL] Upper Clifton Down Mudstone [Obsolete: use CDM] Upper Clifton Down Mudstone Formation [Obsolete: use CDM] Upper Clod Coal (North Staffordshire) Upper Coal "Series" [Obsolete] Upper Coal Group (Ballycastle, Northern Ireland) [Obsolete] Upper Coal Measures (Scotland) [Obsolete: use UCMS] Upper Coal Measures [Obsolete: use SWUCM] Upper Coal Measures Formation [Obsolete: use PUCM, SWUCM, UCMS] Upper Cockshot Coal (South Wales) Upper Codshot Coal [Obsolete: use UCOD] Upper Coldwell Beds [Obsolete: use WRE] Upper Comley Group [Obsolete: use UCSS] Upper Comley Limestone and Sandstone [Obsolete: use UCMG] Upper Comley Sandstone [Obsolete: use UCSS] Upper Comley Sandstone Formation Upper Comley Series [Obsolete: use UCMG, UCSS] Upper Comrie Blackband Ironstone Upper Corallian [Obsolete] Upper Corallian Limestones [Obsolete: use STFD] Upper Cornbrash Member Upper Coxtool Coal (Fife) Upper Cracker Coal Upper Crafnant Volcanic Formation Upper Crag [Obsolete: use NCG] Upper Crana Quartzite [Obsolete: use DBCA] Upper Crana Quartzite Formation Upper Cretaceous And Palaeogene Rocks (Undifferentiated) Upper Cretaceous Rocks (Undifferentiated) Upper Crichton Limestone [Obsolete: use HUR] Upper Cromhall Sandstone [Obsolete: use CHSA] Upper Cromhall Sandstone Formation [Obsolete: use CHSA] Upper Culm [Obsolete: use HOWY, UCU] Upper Culm Group [Obsolete: use HOWY] Upper Cwm Clyd Beds Upper Cwmgorse Marine Band [Local Name: see CAMB] Upper Dalness Ignimbrite Upper Dalradian Group (now Southern Highland Group) [Obsolete: use DC] Upper Dalradian Group [Obsolete: use SOHI] Upper Dalton Beds Upper Delabole Slates Upper Deltaic Series (part) [Obsolete: use LNAB] Upper Deltaic Series [Obsolete: use SCY] Upper Dements Limestone Upper Demesne Limestone Upper Devil's Bridge Formation [Obsolete: use UDB] Upper Devil's Bridge Member [Obsolete: use DBF] Upper Devonian Purple and Green Slate [Obsolete: use HCSL] Upper Devonian Purple and Green Slates [Obsolete: use PZS] Upper Devonian Rocks (Undifferentiated) Upper Devonian Rocks And Lower Carboniferous Rocks (Undifferentiated) Upper Devonian Slate [Obsolete: use SAH] Upper Devonian Slates Upper Diamond Coal (Tranent; Lothian) Upper Dornoch Sandstone unit Upper Drumgray Coal (Central Coalfield) Upper Drumgray Musselband (Glasgow; Central Coalfield) Upper Drybrook Sandstone [Obsolete: use CHSA, DS] Upper Dunnet Shale Upper Dykebar Coal Upper Echinoid Bed Upper Eday Sandstone [Obsolete: use UED] Upper Eday Sandstone Formation Upper Eight Foot Coal Upper Eighteen-Feet Coal (South Wales) Upper Ell Marine Band Upper Elton Beds [Obsolete: use UELB] Upper Elton Formation Upper Erins Quartzite Formation Upper Erons Quartzite [Obsolete: use DBUE] Upper Estuarine "Series" [Obsolete: use RLD] Upper Estuarine Clay [Obsolete] Upper Estuarine Ironstone Bed [Obsolete] Upper Estuarine Limestone [Obsolete: use WBRO] Upper Estuarine Limestones [Obsolete: use WBRO] Upper Estuarine Series (part) [Obsolete: use LNAB] Upper Estuarine Series [Obsolete: use BIAD, RLD, SCY] Upper Etive Rhyolite Upper Fell Top Limestone [Obsolete: use UFTL] Upper Felltop Limestone Upper Felltop Sandstone Upper Findhorn Sandstone unit Upper Fionchra Member Upper Fireclay Of The Passage Formation Upper Fireclay of the Passage Group [Obsolete: use UFCL] Upper Fireclays Of Bonnybridge Upper Fish Tooth Bed Upper Fittleworth Member Upper Five-Feet Coal (South Wales) Upper Flaxley Beds Upper Floodplain Terrace [Obsolete: use KPGR] Upper Flora Sandstone Upper Flow Moss Lava Member [Obsolete: use FMLA] Upper Follifoot Grit Upper Follifoot Ridge Grit [Obsolete: use UF] Upper Foot Coal (South Lancashire) Upper Foot Mine Coal [Obsolete: use UFTC] Upper Forest Beds Upper Forest Beds and Lower Llanbadoc Beds (Undifferentiated) Upper Formation [Obsolete: use DARW] Upper Four Feet Coal (Warwickshire) Upper Four-Feet Coal (South Wales) Upper Foxton Limestone Upper Freestone [Obsolete: use SQAR] Upper Freshwater Bed Upper Fuller's Earth (Member) [Obsolete] Upper Fuller's Earth [Obsolete: use FRC] Upper Fuller's Earth Member Upper Ganey Coal (Coalbrookdale) Upper Garry Psammite Formation [Obsolete: use TAPS] Upper Garscadden Blackband Ironstone (Glasgow) Upper Garscadden Coal (Central Coalfield) Upper Garth Coal Upper Gas Coal (New Cumnock) Upper Glacial Series [Obsolete: use RIDG] Upper Glauconitic Beds [Obsolete: use KOS] Upper Glenelly Schists [Obsolete] Upper Gramscatho Beds [Obsolete: use CRNE] Upper Gramscathos [Obsolete: use CRNE] Upper Greensand Formation Upper Greensand Formation (Devon) [Obsolete: use UGS] Upper Greensand Formation (Except Devon) [Obsolete: use UGS] Upper Grey Limestone [Obsolete: use CFML] Upper Grinstead Clay Upper Grovesend Coal (South Wales) Upper Gullane Head Sill Upper Gunnerton Fell Limestone Upper Gwastaden Group (See Gwastaden Group, Gg) Upper Gwespyr Sandstone [Obsolete] Upper Gyffin Shales Upper Halite [Obsolete: use SNH] Upper Hall Coal (Northumberland) Upper Hangman Grits [Obsolete: use HASA] Upper Hartfell Lowther Shales Upper Hartfell Shale Formation Upper Hartfell Shales [Obsolete: use UHBS] Upper Haslingden Flags Upper Haugh Wood Beds and Lower Haugh Wood Beds [Obsolete: use HWD] Upper Hawes Limestone Upper Hayton Anhydrite [Obsolete] Upper Heathen Coal (South Staffordshire) Upper Heathen Coal (South Staffordshire) [Duplicate: use UHEC] Upper Henshaw Siltstones Upper Hibernian Greensands [Obsolete: use KOS] Upper Hilton Terrace (in part) [Obsolete: use EMSG] Upper Hilton Terrace [Obsolete: use ETSG, OKSG] Upper Hirst Coal (Glasgow-Stirling Area; Central Coalfield) Upper Holcombe Brook Coal (South Lancashire) Upper Holywell Beds [Obsolete: use NPCH] Upper Holywell Beds and New Pit Beds [Obsolete] Upper Hot Shale [Obsolete: use BNSA] Upper Househill Clayband Ironstone Upper Howgate Edge Grit Upper Inferior Oolite [Obsolete: use SALS] Upper Interbasaltic Formation Upper Jersey Coal (Fife) Upper Johnstone Shell Bed Upper Jurassic Rocks (Undifferentiated) Upper Jurassic Sand Formation [Obsolete: use BRAE] Upper Kent's Thick Coal (West And South Yorkshire) Upper Keuper Marl [Obsolete: use BCMU] Upper Keuper Saliferous Beds [Obsolete: use WHT] Upper Keuper Sandstone [Obsolete: use MASS, AS] Upper Kilburn Coal (South Derbyshire) Upper Kimmeridge Clay Upper Kinderscout Grit Upper Kinniny Limestone [Obsolete: use TOHO] Upper Lancashire Ladies Coal (Coalbrookdale) Upper Lecket Hill Lava Member Upper Lecket Hill Lavas [Obsolete: use ULHLA] Upper Leintwardine Beds [Obsolete: use LULT, LTB] Upper Leintwardine Formation Upper Leny Grit [Obsolete] Upper Lias (part) [Obsolete: use BW] Upper Lias [Obsolete: use WHM] Upper Lias Clay [Obsolete: use WHM] Upper Lias Clay Formation [Obsolete: use WHM] Upper Lias Limestone [Obsolete: use BARB] Upper Lias Sand [Obsolete: use BDS] Upper Liddesdale Group [Duplicate 1: use URL] Upper Liddesdale Group [Obsolete: use AG] Upper Limestone [Obsolete] Upper Limestone and Lower Limestone [Obsolete: use SYLV] Upper Limestone Formation Upper Limestone Group (Dungannon, Northern Ireland) [Obsolete: use ULGS] Upper Limestone Group [Obsolete: use ULGS] Upper Limestone Shales [Obsolete: use OB] Upper Lincolnshire Limestone [Obsolete: use ULL] Upper Lincolnshire Limestone Member Upper Linn Limestone Upper Little Limestone Upper Llanbadoc Beds Upper Llanbadoc Beds [Duplicate: use ULCB] Upper Llanbadoc Beds And Llangibby Beds (Undifferentiated) Upper Llanbadoc Beds And Lower Llangibby Beds (Undifferentiated) Upper Llandovery Sandstone [Obsolete: use RBS] Upper Llandovery Sandstone and Shale [Obsolete: use RBY] Upper Llandovery Shale [Obsolete: use RBSH] Upper Llangibby Beds Upper Llangibby Beds [Duplicate: use ULYB] Upper Llwydcoed Coal (South Wales) Upper Lobster Member Upper Lodge Volcanic Group Upper Long Sands Sandstone Member Upper Longcraig Limestone [Obsolete: use HUR] Upper Longhope Beds Upper Lothian Group [Obsolete: use ABY] Upper Lount Coal (Leicestershire) Upper Lount Rider Coal (Leicestershire) Upper Ludlow Shales [Obsolete: use ULUS, ULU, WHIT] Upper Ludlow Shales Formation [Obsolete: use ULUS] Upper Ludlow Shales Group [Obsolete] Upper Ludlow Siltstone Formation [Obsolete: use ULU, ULUS] Upper Lydite Bed [Obsolete: use PSND] Upper Macleod Formation Upper Macleod Sequence [Obsolete: use ULOD] Upper Maesmelyn Coal (South Wales) Upper Magnesian Limestone (Durham) [Obsolete: use SHE, CNCL, ROD] Upper Magnesian Limestone [Obsolete: use SEH, ROD, CNCL] Upper Magnesium Limestone [Obsolete: use BTH] Upper Main Coal (Leicestershire) Upper Main Coal (North Wales) Upper Marehill Clay Upper Marl [Obsolete: use ROX] Upper Marl Group [Obsolete; use FWW] Upper Matlock Lava [Obsolete: use URB] Upper Matlock Lava Member Upper Matlock Limestone Upper Meltham Coal (West Yorkshire) Upper Member of the Dalcharn Upper Till [Obsolete: use RNTI] Upper Member, Wether Law Linn Formation [Obsolete: use BDD] Upper Metagabbro [Shetland Ophiolite] Upper Metal Band Coal (Cumbria) Upper Miller's Dale Lava [Obsolete: use UMB] Upper Miller's Dale Lava Member Upper Millerhill Limestone Upper Millers Dale Basalt [Obsolete: use UMB] Upper Millgrit Coal (Bristol Area) Upper Miocene Rocks (Undifferentiated) Upper Monsal Dale Beds [Obsolete: use MO] Upper Morar Psammite Formation Upper Morrison Formation Upper Morte Slate [Obsolete] Upper Mottled Beds (Reading Formation) Upper Mottled Clay Upper Mottled Mudstone Member Upper Mottled Sandstone [Obsolete: use THUN, WLSF, WRS] Upper Mountain Coal (South Lancashire) Upper Mountain Mine Coal [Obsolete: use UMOM] Upper Nantglyn Flags Group [Obsolete: use NGF] Upper Nine-Feet Coal (South Wales) Upper Nordland Unit Upper Oakley Coal Upper Oakwood Limestone Upper Oil Shale Group [Obsolete: use SYG] Upper Oil-Shale Group and part of Lower Oil-Shale Group [Obsolete: use WLO] Upper Old Mill Limestone Upper Old Red Group [Offshore] Upper Old Red Sandstone (part of) [Obsolete: use GNSA, REMU] Upper Old Red Sandstone [Obsolete: use ORSU] Upper Old Red Sandstone Group [Obsolete: use BRBE] Upper Orbirhynchia Bed Upper Orchard Limestone Upper Ostrea Member Upper Oxford Clay Member [Obsolete: use WEY] Upper part of Bed A [Obsolete: use DHP] Upper part of Bed B [Obsolete: use DHP] Upper part of Bed C [Obsolete: use BDD] Upper part of beds at B [Obsolete: use DHP] Upper Part of Boyne Limestone [Obsolete: use BOCL] Upper part of Deerhope Formation [Obsolete: use CKRI] Upper part of Durn Hill Quartzite [Obsolete: use DBDQ] Upper part of fossiliferous mudstones and siltstones [Obsolete: use BDD] Upper part of Portsoy Group [Obsolete: use PTSL] Upper part of Reservoir Beds and Deerhope Burn Flagstones [Obsolete: use DHP] Upper part of Reservoir Formation and lower part of Deerhope Formation [Obsolete: use DHP] Upper part of Strath Fionan Dark Limestone and Dark Schist Formation [Obsolete: use DLDS] Upper Part of Whitehills Grit [Obsolete: use WHSG] Upper part: Ardley Beds [Obsolete: use ARDY] Upper Peat [Obsolete: use NP] Upper Peat Member (Breydon Formation) Upper Pelite [Obsolete: use DIEP] Upper Pen-Y-Graig Mudstone Member Upper Pendleside Sandstone [Obsolete: use PNDS] Upper Pennant Measures [Obsolete: use PES, SP] Upper Pennant Sandstones [Obsolete: use PES, SP] Upper Pentamerus Limestone [Obsolete: use WOB] Upper Permian Marl [Obsolete: use ROX] Upper Permian Marls [Obsolete: use BLYT] Upper Permian Rocks (Undifferentiated) Upper Perton Beds Upper Pilton Beds [Obsolete: use PLT] Upper Pinchin Coal (South Wales) Upper Pinchin Rider Coal (South Wales) Upper Pink Band Upper Plateau Beds Member Upper Plompton Grit Upper Plompton Grit [Duplicate: use UPG] Upper Plompton Grit Formation [Obsolete: use UPG] Upper Plumpton Grit Upper Possil Coal (Glasgow Area; Central Coalfield) Upper Possil Ironstone (Glasgow Area; Central Coalfield) Upper Potash [Obsolete: use UPT] Upper Productive Coal [Obsolete] Upper Psammite [Obsolete: use CMPS] Upper Pulborough Sandrock Upper Purbeck Beds [Obsolete: use PEP] Upper Purple Sandstone Facies [Obsolete: use BUCS] Upper Quarried Limestone [Obsolete: use UQL] Upper Quarried Limestone Member Upper Quartzite [Obsolete: use CMPS] Upper Quartzite Pipe-Rock or Piped Quartzite [Obsolete: use PPR] Upper Queen's Cairn Breccias Upper Rags [Obsolete: use CSHF] Upper Rags And Bath Oolite (Undifferentiated) [Obsolete] Upper Rags Member [Obsolete: use CSHF] Upper Ragstones [Obsolete: use SALS] Upper Red Coal (North Wales) Upper Red Sandstone [Obsolete: use HSW] Upper Rhaetic [Obsolete] Upper Rhyolite Division [Obsolete: use GDV] Upper Rhyolites [Obsolete: use GAD] Upper Rhyolitic Tuff Formation Upper Rigfoot Coal (New Cumnock, South Ayrshire) Upper River Green Limestone Formation Upper River Terrace [Obsolete: use SOYSG] Upper River Terrace Deposits [Obsolete: use MTNSG] Upper Rivergreen Coal (Northumberland) Upper Roeburndale Grit [Obsolete: use RBL] Upper Roman Camp Beds Upper Rowhurst Coal (North Staffordshire) Upper Sands and Gravels [Obsolete: use GOGL] Upper Sandstone [Obsolete: use OS, HEY, AGH, GOR] Upper Sandstone Group [Obsolete: use TELPP] Upper Sankey Marine Band [Local Name: see CAMB] Upper Sedimentary Group [Obsolete: use LWM] Upper Seminula Zone (S2) Limestone [Obsolete: use DWL] Upper Seven-Feet Coal (South Wales) Upper Seven-Feet Coal And Yard Coal (Undifferentiated) (South Wales) Upper Shafton Coal (West Yorkshire) Upper Shale [Obsolete: use SPC] Upper Shale and Quartzite Group [Obsolete: use MQF] Upper Shelly Clay (Woolwich Formation) Upper Shiaba Psammite Formation Upper Siller Willie Coal (Midlothian) Upper Silt [Obsolete: use TTB] Upper Silurian (Downtonian) [Obsolete: use CRN] Upper Six-Feet Coal (South Wales) Upper Skateraw Limestone [Obsolete: use BLLS] Upper Skelgill Beds [Obsolete: use SKB] Upper slates of Kendal [Obsolete: use KMF] Upper Slatyband Ironstone Upper Sleaves Oak Beds Upper Soap Coal (South Wales) Upper Spencroft Coal Upper Spilsby Sandstone Member Upper St Bees Sandstone [Obsolete: use CSA] Upper Stanhope Coal (South Derbyshire) Upper Stinking Coal (Cannock) Upper Stinking Coal (North Wales) Upper Stonesdale Limestone Upper Stony Clays [Obsolete: use BUTTI] Upper Streaky Andesite Member Upper Stromness Flags [Obsolete: use USF] Upper Stromness Flagstone Formation Upper Sulphur Coal (South Staffordshire) Upper Swansea Six Feet Coal Upper Tealby Clay Upper Tealby Clay (of the Tealby Series) [Obsolete: use UTBC] Upper Thames Valley Formation Upper Thatcham Gravel Upper Thick Coal (South Staffordshire) Upper Thirty Inch Coal Upper Three Sisters Ignimbrite Upper Threequarters Coal (Cumbria) Upper Till (Unit 4) [Obsolete: use OHT] Upper Tilmanstone Marine Band [Local Name: see CAMB] Upper Top Soft Coal (Nottingham And Derby) Upper Trap Upper Tremadoc [Obsolete] Upper Trenchard Coal (Forest Of Dean) Upper Trigonia Grit [Obsolete: use UTG] Upper Trigonia Grit Member Upper Tuff Bed [Obsolete: use UCV] Upper Tunbridge Wells Sand Upper Tunbridge Wells Sand Formation [Obsolete: use UTW] Upper Turbot Anhydrite unit Upper Two Foot Coal Upper Two Foot Coal (New Cumnock) Upper Vexhim Coal Upper Vexhim Limestone [Obsolete: use MIHO] Upper Volcanic Series [Obsolete: use OF] Upper Waterhouses Limestone [Obsolete: use KV] Upper Weald Clay Upper Weald Clay Member [Obsolete: use UWC] Upper Wee Coal Upper Welsh Coal (South Wales) Upper Wenlock Limestone [Obsolete: use UQL, WEL] Upper West Mills Marine Band Upper Western Irish Sea Formation Upper Westleigh Limestone [Obsolete: use WST] Upper Westleigh Limestones [Duplicate: use UWST] Upper Whitcliffe Beds [Obsolete] Upper Whitehills Group Upper Winter Hill Terrace Deposits Upper Wishaw Limestone Upper Wooton Beds Upper Yard Coal (Cumbria) Upper Yard Coal (North Wales) Upper Yard Coal (South Wales) Upper Yard Seam [Obsolete: use UYD] Uppermost part of Whitehills Group [Obsolete: use KNHG] Uppertown Mugearite [Obsolete] Upton Coal (West Yorkshire) Upton Formation Upton Wood Formation [Obsolete: use BREN] Upware Limestone [Obsolete: use UPL] Upware Limestone Member Urban Development Uriconian [Obsolete: use U] Uriconian Group Uriconian Group [Duplicate 1: use UO] Uriconian Volcanic Group [Obsolete: use UO] Urswick Limestone (Knoll-Reef) Urswick Limestone [Obsolete: use UL] Urswick Limestone Formation Ury Silts Formation Usk Limestone Formation Usually Called 'Ancient Volcanic Rocks'. Usworth Coal (Northumberland And Durham) Utsira Formation Uyea "Group" Uyea Fault Zone V2 Beds [Obsolete: use LYMD] Vaasetter Sandstone Formation Vaasetter Sandstone Group [Obsolete: use VAG] Vaich Pelite Formation Vaila Formation Valayre Gneiss Formation Vale Of York Formation Vale of York Glacigenic Formation [Obsolete: use VYORK] Vale of York Till Formation [Obsolete: use VYORK] Valhall Formation Valla Field Gneiss Formation Valla Field Group Valla Field Schist Formation Valley Brickearth [Obsolete: use DOWNF] Valley flank sands and gravels [Obsolete: use HGV] Valley Gravel [Obsolete] Valley Infill, Pre-Holocene [See Descriptions For Limitations Of Use] Valley Infill, Pre-Holocene, Mostly Fines [See Descriptions For Limitations Of Use] Valley Infill, Pre-Holocene, Mostly Gravels [See Descriptions For Limitations Of Use] Valley Infill, Pre-Holocene, Mostly Sand [See Descriptions For Limitations Of Use] Valley Infill, Pre-Holocene, Mostly Till [See Descriptions For Limitations Of Use] Vallis Limestone Formation Vallites eostriolatus Marine Band Vallites henkei Marine Band Valtos Sandstone Formation Vanderbeckei Marine Band Variable beds of Northampton Sand [Obsolete: use NS] Varicoloured Unit of the Dunrobin Bay Formation [Obsolete: use GOLS] Variegated Beds (lower part) [Obsolete] Variegated Beds [Obsolete: use BKBD, PLMA] Variegated Marls and Sandstones [Obsolete: use WSEX] Vaughans D1 Zone [Obsolete: use HL] Vectis Formation Vein-Quartz Of Unknown Age And Affinity Vementry "Group" Verneulites sigma Marine Band Verneulites sigma Marine Band [Duplicate: use R2C2] Veryan Beds [Obsolete: use PWER] Veryan Limestone [Obsolete: use GRO, PWER] Veryan Series [Obsolete: use RDBR, PWER] Vexford Breccias Viaduct Marine Band [Local Name: see EMMB] Vicard Mudstone Victoria Coal (Northumberland and Durham) Victoria Coal (South Wales) Victoria Shell Bed (Northumberland And Durham) Victoria Shell Bed Coal (Northumberland) Victory Coal (Fife) Victory Formation Vidlin Limestone Formation Viger Coal (Coalbrookdale) Vigra Beds [Obsolete: use VGR] Vigra Member Viking Bank Formation Village Farm Formation Virgin Coal (Central Coalfield) Virgin Under Coal (Central Coalfield) Viriditic Tuffs Virtuewell Coal Visean Rocks (Undifferentiated) Vivod Group [Obsolete] Vobster Formation Volans Member Volcanic 'Group' of the Lower Old Red Sandstone [Obsolete: use CRKV] Volcanic Conglomerate Member [Obsolete: use CWHC] Volcanic Conglomerates [Obsolete: use CMVC] Volcanic Group [Obsolete: use MQF] Volcanic Neck [Obsolete: use TDH] Volcanic Rocks and Black Shales (Highland Border Complex) [Obsolete: use NOE] Volcanic Rocks and Black Shales (Highland Border Series) [Obsolete: use DCHV] Volcanic Rocks and Greenstones [Obsolete: use KVG] Volcanic Series [Obsolete: use TVF] Volcanic Series of Glen Coe [Obsolete: use GLVO] Voylart Coal (South Wales) Waberthwaite Formation [Obsolete: use WB] Waberthwaite Tuff Formation Wadbister Ness Formation Wadbister Ness Group [Obsolete: use WAD] Wadbister Ness Series [Obsolete: use WAD] Wadhurst Clay [Obsolete: use WDC] Wadhurst Clay Formation Wadhurst Formation [Obsolete: use WDC] Wagtail Limestone Walbottle Dyke Walcott Diamicton [Obsolete: use WATI] Walcott Till Member Waldringfield Member Wales Coal (Yorkshire, Nottingham) Wales Glacigenic Subgroup Wall Coal (Fife) Wall Coal (North Wales) Wall Hill Member Wall Hill Sandstone Formation [Obsolete: use WLH] Wall Hill Sandstone Group [Obsolete: use WLH] Walland Sandstone Wallingford Fan Gravels Wallowbarrow Formation [Obsolete: use WAL] Wallowbarrow Tuff Formation Walls "Division" Walls Boundary Fault Zone Walls Formation [Obsolete: use WAF] Walls Hill Limestone [Obsolete: use WHLS] Walls Hill Member Walls Sandstone Formation Wallsend Coal Walton Member Wambury Siltstones Wandering Coal Wandley Gill Sandstone Wandley Gill Shale Wanlip Sand and Gravel [Obsolete: use WASG] Wanlip Sand and Gravel Member Wanlip Terrace [Obsolete: use WASG] War Damage (Undivided) Ward Hill Group [Obsolete: use WAG] Ward Hill Sandstone Formation Ward's Stone Sandstone Ward's Stone Sandstone Formation [Obsolete: use SILS, WRST] Wardie Coal Wardie Sandstone Wardie Shales [Obsolete: use WASH] Wardie Shales Member Wardour Formation Wardour Member [Obsolete: use WAR] Warklaw Hill Group [Obsolete: use WKH] Warklaw Hill Volcanic Formation [Obsolete: use WKH] Warklaw Hill Volcanic Member Warley Gravel [Obsolete: use STGR] Warley Rock Warley Wise Grit Warley Wise Marine Band [Local Name: see E2A1] Warmden Sandstone Warmfield Rock [Obsolete: use ACR] Warminster Greensand [Obsolete: use MYS] Warmwell Farm Sand Member Warp Warp And Lacustrine Clay Warp Land Warras Coal (North Wales) Warras Marine Band [Local Name: see AGMB] Warren Gutter Shale Warren Hill Sand Member Warren House "Series" [Obsolete: use WHO] Warren House Coal (West And South Yorkshire) Warren House Formation Warren House Gill Loess Bed Warren House Gill Till Formation Warren House Group [Obsolete: use WHO] Warren House Group rhyolites [Obsolete: use WHO] Warren House Group spilites [Obsolete: use WHO] Warren House Group tuffs [Obsolete: use WHO] Warren House Rider Coal (West And South Yorkshire) Warren House Rocks [Obsolete: use WHO] Warren House Series [Obsolete: use WHO] Warren House Volcanic Series [Obsolete: use WHO] Warren House Volcanics [Obsolete: use WHO] Warren Point Beds Warren Sandstones [Obsolete: use DRTM] Warren Sponge Bed Warslow Limestones [Obsolete] Warton Halite Formation Warwickshire Avon Valley Formation Warwickshire Group Wasdale Head Granite Washing Lodge Stone Band Washover deposits [Obsolete: use WDEP] Washover fan deposits Wasperton Member [Obsolete: use WAT] Wasperton Sand and Gravel Member Wasperton Sand And Gravel Member And New Inn Sand And Gravel Member (Undifferentiated) Wasperton Sand and Gravel Member, Lower Facet (Warwickshire Avon) Wasperton Sand and Gravel Member, Upper Facet (Warwickshire Avon) Wasperton Terrace Deposits (Warwickshire Avon) [Obsolete: use WAT] Wasperton Terrace Deposits, lower part (Warwickshire Avon) [Obsolete: use WATA] Wasperton Terrace Deposits, upper part (Warwickshire Avon) [Obsolete: use WATB] Waste Tip (Undivided) Watch Hill Formation Watch Hill Grit [Obsolete: use WHG] Watchet Beds [Obsolete: use WATCH] Watchet Member [Obsolete: use WATCH] Watchet Mudstone Formation Watchlaw Coal (Northumberland) Watchlaw Limestone Watcombe Breccia [Obsolete: use WBR] Watcombe Breccia Formation Watcombe Clay (Devon) [Obsolete] Watcombe Formation [Obsolete: use WBR] Water Coal (South Lancashire) Water Extraction Water Management Development Water Of Dye Granite (Mount Battock Pluton) Water Of Feugh Granite (Mount Battock Pluton) Water Of Tanar Limestone Formation Water Treatment Works Waterfall Sandstone Waterfoot Dyke Watergate Seam Waterhead Central Volcanic-Complex Waterhead Group (Cf Glenbuck Group) Waterhead Group And Dungavel Group (Undifferentiated) Waterhouses Limestone [Obsolete: use KV] Waterloo Marker Coal (Derby) Waterloo Mudstone Formation Waterman's Lodge Sand and Gravel Member Waterside Limestone Waterstones [Obsolete: use DST, HEY, SGBK, TPSF] Waterstones Group [Obsolete: use TPSF, SGBK, HEY] Wathwood Coal Watling Shales Watling Shales; Brockhurst Shales Watstone Musselband Ironstone Watton Bed [Obsolete: use BNLS] Wattonensis Limestone Member Waunffynnocau Coal [South Wales Coalfield] Waveney Valley Formation Waverley Coal Weaklaw Vent Weald Clay [Obsolete: use WC] Weald Clay Bed 1 (A and B) [Obsolete: use HST] Weald Clay Formation Weald Clay Group [Obsolete: use WC] Wealden [Obsolete: use W] Wealden Beds [Obsolete: use W] Wealden Facies [Obsolete: use W] Wealden Formation [Obsolete: use W] Wealden Group Wealden Marls (Isle of Wight) [Obsolete: use WSEX] Wealden Marls [Obsolete: use WSEX] Wealden Series [Obsolete: use W] Wealden Shales (Isle of Wight) [Obsolete: use VTIS] Wealden Shales [Obsolete: use VTIS] Wealden Strata [Obsolete: use W] Wear Cliff Beds [Obsolete: use GAB] Wear Mouth Marine Band [Local Name: see EMMB] Wear Till Formation Wear Valley Formation Weardale Grit Group Weardale Pluton Wearde Sandstone Member Wearde-Efford Grit [Obsolete: use WRG] Weather Castle Member Weathered Pre-Quaternary Rocks (Undifferentiated) Weatheroak Sandstone Weatheroak Sandstone Member [Obsolete: use WKSA] Weaver Beds [Obsolete: use MI] Weaver Valley Formation Wedmore Stone Wee Bankie Beds [Obsolete: use WBA] Wee Bankie Formation Wee Coal Wee Coal (Ayrshire Limestone Coal Formation) Wee Drum Coal Wee Gillespie Coal (Lothian) Wee Pit Coal Wee Post Limestone Wee Stairhead Coal (Lothian) Weeton Shales Weir Coal Weisdale Limestone [Obsolete: use WEIL] Weisdale Limestone Member Welcome Beds [Obsolete: use CKF] Welcome Formation [Obsolete: use CKF] Welcome Measures [Obsolete: use CKF] Well Coal (South Derbyshire) Well Ground Formation Well Hill Gravel [Obsolete: use WHGR] Well Hill Gravel Formation Well Hill Marine Band Well Hole Formation Wellesley Marine Bed Wellingborough Limestone Member Wellingborough Member [Obsolete: use WBRO] Wellington Crag Sandstone [Obsolete: use ACHS] Wellington Heath Member Wells O'Wearie Sandstone Wellsyke Coal (Midgeholm) Wellwood Seven Foot Coal (Fife) Welsh Till [Obsolete: use ERYG] Welsh till [Obsolete: use MNTI, PLYNT, BNOCK] Welton Chalk Formation Welton Chalk Formation And Burnham Chalk Formation (Undifferentiated) Welton Formation [Obsolete: use WCK] Wemyss Bay Formation [Obsolete: use WEM] Wemyss Bay Sandstone Formation Wemyss Parrot Coal Wenallt Coal (South Wales) Wenallt Rider Coal (South Wales) Wenlock Beds [Obsolete: use CAEC] Wenlock Limestone [Obsolete: use WEL, UWL, LWL] Wenlock Limestone reef knolls [Obsolete: use WLK] Wenlock Rocks (Undifferentiated) Wenlock Rocks and Ludlow Rocks (undifferentiated) Wenlock Series [Obsolete: use WEN] Wenlock Shale [Obsolete: use CBRD, BUI] Wenlock Shale Formation [Obsolete: use CBRD] Wenlock Shales [Obsolete: use GLMD, NYG] Wensleydale Formation [Obsolete: use WND] Wensleydale Group [Obsolete: use YORE] Wensleydale Pluton Wentlooge Formation [Obsolete: use WLLEV] Wentlooge Member Wentnor Group Wentnor Series [Obsolete: use YW] Werkendam Shale Formation Wern Quarry Beds [Obsolete: use CEF] Wern Watkin Formation Wernddu Coal (South Wales) Wernpistyll Coal (South Wales) Wernpistyll Rider Coal (South Wales) Werraanhydrit Formation Wessex Formation West Angle Formation West Bay Cornstone Member West Braes Marine Band West Burra Firth "Group" West Cumbria Drift Group [Obsolete: use ISCAG, ISCG] West Fenton Sill West Greenland Province West Harbour Formation [Obsolete: use GMSA] West Harbour Member West Highland Granite Gneiss Intrusion West Highlands - Hebrides Cluster West Kirkton Limestone [Obsolete: use HUR] West Leys Sand and Gravel Formation West Lothian Oil-Shale Formation West Melbury Chalk Member [Obsolete: use WMCH] West Melbury Marly Chalk Formation West Melbury Marly Chalk Formation And Zig Zag Chalk Formation (Undifferentiated) West Melbury Marly Chalk Formation, Zig Zag Chalk Formation, Holywell Nodular Chalk Formation And Newpit Chalk Formation (Undifferentiated) West Moor Coal (Northumberland) West Orkney Evaporite Formation West Park Farm Member West Runton Freshwater Bed West Runton Member West Sands Mica Schist [Obsolete: use DICH, WESD] West Sands Mica Schist Member [Obsolete: use WESD] West Sands Mica-Schist [Obsolete: use WESD] West Sands Semipelite Member West Shetland Margin Group West Sole Group West Stayvoyage Vein West Wales Catchments Subgroup West Walton Beds [Obsolete: use ELR, WWB] West Walton Formation West Walton Formation and Ampthill Clay Formation (Undifferentiated) West Walton Formation and Oxford Clay Formation (Undifferentiated) [Obsolete: use OXWW] West Walton Formation, Ampthill Clay Formation And Kimmeridge Clay Formation (Undifferentiated) Westbury Beds [Obsolete: use WBY] Westbury Formation Westbury Formation and Cotham Member (Undifferentiated) Westbury Iron Ore [Obsolete: use WI] Westbury Ironstone Member Westbury Sands Wester Coal (Scremerston) Wester Keolka Shear Zone Wester Laurenceton Conglomerate Member Wester Main Coal Wester Ross Supergroup Westerhouse Sandstone Member Western Drift [Obsolete: use NURS, RIDG] Western Glenelg Gneiss Western Granite (Rum Central Complex) Western Granite (Rum Central Complex) [Duplicate: use RWG] Western Granite, Fine-Grained Phase (Rum Central Complex) Western Granite, Fine-Grained Phase (Rum Central Complex) [Duplicate: use RWG1] Western Granite, Medium-Grained Phase (Rum Central Complex) Western Granite, Medium-Grained Phase (Rum Central Complex) [Duplicate: use RWG2] Western Intrusion (Rum Layered Suite) Western Irish Sea Formation Western Isles (Albion) Glacigenic Subgroup [Obsolete] Western Isles Glacigenic Subgroup Western Layered Intrusion (Rum Layered Suite) [Obsolete: use RLW] Western Midland Valley Westphalian To Early Permian Sills Western Mud Hole Member Western Red Hills Centre (Skye Central Complex) Western Uriconian [Obsolete: use UO] Western Yar River Formation Westernmoor Coal (South Wales) Westfield No.1 Mine Coal Westfield No.2 Mine Coal Westfield Shale Westfield Shale Coal Westfield Thick Coal Westfield Two Foot Coal Westgate Formation Westing Gneiss Formation Westing Group Westing Limestone Formation Westing Ultramafic Zone Westkapelle Ground Formation Westland Green Gravel Member Westland Green Member [Obsolete: use WGGR] Westleigh Limestone Formation Westleigh Limestone Group [Obsolete: use WST] Westleigh Limestones [Obsolete: use WST] Westleton Beds Westmill Gravel Formation [Obsolete: use WLGR] Westmill Gravel Member Westmuir Sandstone Westoe Coal Formation Weston Beds [Obsolete: use WSN] Weston Flags Formation Weston Flags Formation [Duplicate: use WSN] Weston Group [Obsolete: use WSN] Weston Member [Obsolete: use WSN] Weston Mouth Sandstone Member [Obsolete: use AS] Westphalian Rocks (Undifferentiated) Westray Group Westward Ho Formation [Obsolete: use BFF, WDHO] Westward Ho! Member Wet Side Edge Formation [Obsolete: use WSE] Wet Side Edge Member [Obsolete: use WSE] Wet Side Edge Tuff Member Wet Sleddale Andesite Formation Wet Sleddale Formation [Obsolete: use WETS] Wether Law Linn Formation Wetherby Member Weybourne Crag [Obsolete: use DOBP, WRCG] Weybourne Town Till Member Weymouth Group [Obsolete] Weymouth Member Wharfe Conglomerate [Obsolete: use WFC] Wharfe Conglomerate Member Wharncliff Rock Whatton Sand and Gravel [Obsolete: use BDTN] Wheatley Lime Coal (West Yorkshire) Wheatley Limestone [Obsolete: use WYLS] Wheatley Limestone and Faringdon Members [Obsolete: use STFD] Wheatley Limestone Member Wheatley Limestone, Oakley and Littlemore Members [Obsolete: use STFD] Wheatley Trough Limestone Wheatworth Coal (West Yorkshire) Whelter Knotts Tuff Formation Whickhope Coal Whickhope Linn Limestone Whickhopenick Sike Coal Whin Garth Gravel Member Whin Sill [Obsolete: use GWHIN, WHINS] Whin Sill Complex Whinmoor Coal (West And South Yorkshire) Whinneybank Tuffite [Obsolete: use WNB] Whinneyhill Coppice Clay Member Whinny Bank Formation [Obsolete: use WNB] Whinny Bank Tuff Formation Whipton Formation Whirl Howe Formation Whirl Howe Formation [Duplicate: use WHH] Whisby Farm Member [Obsolete: use WFSG] Whisby Farm Sand and Gravel Member Whistler Coal (North Ayrshire) Whita Formation [Obsolete: use WTS] Whita Sandstone [Obsolete: use WTS] Whita Sandstone Beds Whitacre Member Whitberry Band Whitberry Vent Whitby Mudstone Formation Whitby Mudstone Formation and Bridport Sand Formation, Undifferentiated Whitchurch Down Greywacke Group [Obsolete: use CKF] Whitchurch Green Slates Whitchurch Sands [Obsolete: use WHS] Whitchurch Sands Formation Whitcliffe Beds [Obsolete: use WHIT] Whitcliffe Formation Whitcliffe Group [Obsolete: use WHIT] White Ash Coal (Goyt Trough) White Axen Coal (Somerset) White Bay Chalk [Obsolete: use BTC] White Brae Mudstone Formation White Chalk Subgroup White Cliff Coral Band White Coal (South Wales) White Coral Limestone White Corries Breccia White Crag Member White Firestone alternating with Blue Rag [Obsolete: use UGS] White Flat Coal (Coalbrookdale) White Four Feet Coal (South Wales) White Guiting Stone [Obsolete: use CLCL] White Hill Formation [Obsolete: use WHIL] White Hill Sandstone Formation White House Silts Member White Ironstone Measures (Cakestone) White Lias Formation White Lias Formation And Blue Lias Formation (Littoral Facies) (Undifferentiated) White Lias Formation And Blue Lias Formation (Undifferentiated) White Limestone (Cumbria) White Limestone [Obsolete] White Limestone And Rough Limestone (Undifferentiated) White Limestone Formation White Limestone Hardground White Limestone Member [Obsolete: use BMR] White Limestone within Blair Atholl Subgroup [Obsolete: use DRPL] White Limestone within Pale Group of Blair Atholl Series [Obsolete: use DRPL] White Limestone, Middle [Obsolete: use LGHL] White Metal Coal (Cumbria) White Mine Coal (Ballycastle, Northern Ireland) White Mine Coal (South Lancashire) White Orr Limestone White Port Bed White Port Formation [Obsolete: use WHP] White Port Member [Obsolete: use WHP] White Sands [Obsolete: use HYSA, STAM] White Sandstone [Obsolete: use LAWS, ESA] White Sandstone Unit [Obsolete: use MANS] White Stone Band White-Leaved Oak Shale Formation White-Leaved-Oak Shales [Obsolete: use WOA] Whitebaulks Limestone Whitecliff Beds Whitecliff Chert Member Whitecliff Flint Whitecliff Marl Whitecliff Sand Member Whitefield Formation Whitehaven Sandstone [Obsolete: use BYCS] Whitehaven Sandstone Formation Whitehaven Sandstone Series [Obsolete: use WS] Whitehead Limestone [Obsolete: use LLY] Whitehill Great Seam Coal (Lothian) Whitehill Jewel Coal (Lothian) Whitehill Rough Coal (Lothian) Whitehill Splint Coal (Lothian) Whitehills Glacigenic Formation Whitehills Grit Formation Whitehills Group [Obsolete: use BOYL] Whiteholme Limestone Whitehouse Beds [Obsolete: use WHE, BAY] Whitehouse Conglomerate Formation Whitehouse Formation [Obsolete: use WHE] Whitehouse Group [Obsolete: use WHE] Whitehouse Limestone Whitehouse Subgroup Whitehurst Coal (North Staffordshire) Whitehurst Group Whitelady Formation Whitelaw Pluton Whiteley Bank Gravel Member Whitemore Limestone Member Whiteness 'Division' Whiteness Limestone [Obsolete: use WNSL] Whiteness Limestone Member Whiterigg Serpula Band Whitethorn Member Whiteway Mudstone Formation Whiteway Slate Formation [Obsolete: use WWYM] Whiting Sandstone Unit Whitley Ironstone Whitsand Bay Formation Whittery Ash [Obsolete: use WTY] Whittery Shale Formation Whittery Shales [Obsolete: use WHSH] Whittery Volcanic Formation Whittery Volcanic Formation [Duplicate: use WTY] Whittery Volcanic Group [Obsolete: use WTY] Whittington Coal (Forest Of Dean) Whitwell Oolite Whitwick Complex [Obsolete: use WVO] Whitwick Dolerite Whitwick Volcanic Complex Whorneyside Formation [Obsolete: use WNY] Whorneyside Ignimbrite [Obsolete: use WSE] Whorneyside Tuff Formation Whyntie Brae Limestone Member Wick Beds [Obsolete: use LYBR] Wick Sandstone Formation Wickersley Rock Widdrington Five-Quarter Coal (Northumberland) Widdrington Five-Quarter Coal (Rothbury Area) [Obsolete: use TBU] Widdrington Main Coal (Rothbury Area) [Obsolete: use BBU] Widdrington Yard Coal (Rothbury Area) [Obsolete: use TILY] Widmerpool Formation Wig Bâch Formation Wîg Member Wigan Five Foot Coal (South Lancashire) Wigan Four Foot Coal (South Lancashire) Wigan Six Foot Coal (South Lancashire) Wigan Two Foot Coal (South Lancashire) Wigston Sand and Gravel [Obsolete: use WIGS] Wigston Sand and Gravel Member Wigton Formation Wigton Marine Bed Wild Pear Beds [Obsolete: use WPSL] Wild Pear Slates Member Wilderness Member [Obsolete: use WITI] Wilderness Till Formation Wildmoor Beds [Obsolete: use WRS] Wildmoor Sandstone Member Wiley Sike Limestone Wilgi Geos "Group" Wilkesley Halite Formation [Obsolete: use WHT] Wilkesley Halite Member Wilmcote Member Wilmslow Sandstone Formation Wilpshire Grit Wilsey Beck Sandstone Member Wilsontown Gas Coal (Central Coalfield) Wilsontown Main Coal (Central Coalfield) Wilsontown Smithy Coal (Central Coalfield) Wimblebury Coal (South Staffordshire) Winch Gill Member Winchester Hardground [Obsolete: use STRK] Windermere Clay and Silt Formation Windermere Group [Obsolete: use TNTH, WIN] Windermere Supergroup Windlesham Formation Windmill Coal (South Lancashire) Windmill Mine Coal [Obsolete: use WNML] Windrush Formation [Obsolete: use WNR] Windrush Group [Obsolete: use WNR] Windrush Member Windy Hills Gravel Member Windyhills Intrusion Wingfield Flags Wingfield Flagstones [Obsolete: use WGF] Winghay Coal (North Staffordshire) Winghay Ironstone Coal Winksley Sandstone Winksley Shale Winpenny Coal (North Staffordshire) Winspit Member [Obsolete: use POFR] Winster Moor Lava [Obsolete: use WMB] Winstermoor Basalt [Obsolete: use WMB] Winstermoor Lava [Obsolete: use WMB] Winstermoor Lava Member Winstow Chert [Obsolete: use WCH] Winstow Chert Formation Winstow Cherts [Obsolete: use WCH] Winstow Mudstone Member Winstow Slate Member [Obsolete: use WWM] Winter Coal (South and West Yorkshire) Winter Hill Gravel (Lacustrine Deposits) Winter Hill Gravel Member Winterbourne Formation Winterbourne Marine Band [Local Name: see CAMB] Wintertarn Sandstone Member Winterton Formation [Obsolete] Winterton Shoal Formation Winton Marine Band Wiston Grey Volcaniclastic Sandstone Member Witch Ground Beds [Obsolete: use WGD] Witch Ground Deposits [Obsolete: use WGD] Witch Ground Formation Witch Member Witham Valley Formation [Obsolete: use BAINV, TRVA] Withy Mills Coal (Somerset) Withy Mills Vein [Obsolete: use WYMC] Withycombe Formation Witney Coal Formation [Obsolete: use WTC] Witney Coal Group [Obsolete: use WTC] Witney Coal Member Wittering 'Division' [Obsolete: use WTT] Wittering Formation Wiveliscombe Sandstones Wivenhoe Member Woburn Sands Formation Wockley Member Wockley Micritic Member [Obsolete: use WOY] Woddhouse Grit Flags [Obsolete: use WOHF] Wolf Crags Formation Wolf Rock Intrusion Wolford Heath Sand and Gravel Member Wolston Clay Member Wolston Glacigenic Formation Wolston Sand and Gravel [Obsolete: use WIGS] Wolston Series [Obsolete: use WOLS] Wolstonian Glacial Deposits [Obsolete: use WOLS] Wolvercot [sic] Terrace Deposits [Obsolete: use WV] Wolvercote (Gravel) Formation [Obsolete: use WV] Wolvercote Member [Obsolete: use WV] Wolvercote Sand and Gravel Member Woman Hithe Clay Woo Dale Dolomite Woo Dale Group [Obsolete: use WDL] Woo Dale Limestone Formation Woo Dale Limestones [Obsolete: use WDL] Wood Burn Formation Wood Coal (Douglas) Wood Coal (Midlothian) Woodbank Group [Obsolete: use COB] Woodbank Series [Obsolete: use WBK] Woodbine Shale Woodbrook Andesite [Obsolete] Woodbury Shale Member Woodend Coal (Northumberland) Woodend Limestone Woodend Serpentinite Woodfield Coal (South Derbyshire) Woodford Gravel Member Woodgate Batch Andesites And Dacites [Obsolete] Woodgate Batch Dacites And Andesites [Obsolete] Woodgate Tuffs [Duplicate: use WGT] Woodgate Tuffs [Obsolete] Woodhall Marine Band Woodhead Coal (Cheadle) Woodhead Crag Sandstone Woodhead Hill Rock Woodhead Sandstone Woodhill Bay Congomerate Member Woodhorn Sandstone Woodhouse and Bradgate Beds [Obsolete: use CMBT] Woodhouse and Bradgate Tuffs Formation [Obsolete: use CMBT] Woodhouse Flags Woodhouse Flags And Midgley Grit (Undifferentiated) Woodhouse Grit [Obsolete: use WOHF, MGG] Woodhouse Grit Flags [Obsolete: use WOHF] Woodhouselee and Braid Hills Group [Obsolete: use WDH] Woodhouselee Group [Obsolete: use WDH] Woodhouselee Volcanic Formation [Obsolete: use WDH] Woodhouselee Volcanic Member Woodland Beds [Duplicate: use WDB] Woodland Beds [Obsolete: use NEWL] Woodland Formation Woodland Limestone [Duplicate: use WLDL] Woodland Limestone [Obsolete: use WLF] Woodland Shell Beds Woodlands Member Woodlands Sands Member Woodmine Coal Woodmore Coal Woodmuir Jewel Coal (Central Coalfield) Woodmuir Main Coal (Central Coalfield) Woodmuir Smithy Coal (Central Coalfield) Woodmuir Splint Coal (Central Coalfield) Woodrow Clay Member Woodspring Lava and Tuff [Obsolete: use MHVO] Woodston Beds [Obsolete: use WTB] Woodston Member Woodthorpe Formation plus Colwick Formation [Obsolete: use TPSF] Woodthorpe Formation plus Waterstones Formation [Obsolete: use TPSF] Woodthorpe Member Woodward Formation Woofferton Sand and Gravel Woogill Coal (Masham Area) Wool Gill Vein Woolgarden Phyllite [Obsolete: use TVY, TSL] Woolgarden Slates [Obsolete: use TVY] Woolhope Limestone [Obsolete: use BLZ] Woolhope Limestone Formation Woolhope Shale Woolley Edge Rock Woolley Grit [Obsolete: use WOG] Woolley Grit Member Woolpit Beds Woolridge Gravels [Obsolete: use WDGE] Woolridge Sand and Gravel Member Woolridge Terrace [Obsolete: use WDGE] Woolwich and Reading Beds [Obsolete: use WRB, LMBE, RB] Woolwich and Reading Beds Formation [Obsolete: use RB, WL] Woolwich and Reading Series [Obsolete: use WRB, LMBE] Woolwich Beds [Obsolete: use WL] Woolwich Beds-Oldhaven Beds [Obsolete: use OH, WL] Woolwich Bottom Bed [Obsolete: use UPR] Woolwich Facies [Obsolete: use WL] Woolwich Formation Woolwich Sands Woolwich Shell Bed(s) [Obsolete: use LSCL, UPSCL] Woorgreen Coals (Forest Of Dean) Wootton Gravel Complex Member Wootton Marls Worbarrow Tout Member Worcester Sand and Gravel Member Worcester Terrace [Obsolete: use WORT] Worcester Terrace Deposits (River Severn) [Obsolete: use WORT] Worked and made ground [Obsolete: use WMGR] Worked Ground Worm Crag Formation [Obsolete: use AIB, WNY] Worm Crag Group [Obsolete: use WCF] Wormegay Member Wormegay Terrace Wormistone Lower Marine Band Wormistone Upper Marine Band Wormwood Formation Worsley Delf Rock Worsley Four Foot Coal (South Lancashire) Worsley Four Foot Mine Coal [Obsolete: use W4FT] Worston Shale Group [Obsolete: use CRAV] Worston Shales [Obsolete: use HOM, WSG] Woundale Formation [Obsolete: use WOU] Woundale Tuff [Obsolete: use WOU] Woundale Tuff Formation Wrabness Member Wrae Limestone [Obsolete: use TDM] Wray Castle Formation Wrayslack Tuff Member Wrayslack Tuffs and Lavas [Obsolete: use WRT] Wrekin Quartzite Formation Wrighthow Basalt [Obsolete: use WGTB] Wrighthow Basalt Member Wrighthow Member [Obsolete: use WGTB] Wroot Formation Wroxham Crag Formation Wych Beds [Obsolete: use WY] Wych Mudstone Formation [Obsolete: use WYM] Wych Mudstone Member Wyche Formation Wychwood Beds [Obsolete: use FMB] Wyddgrug Porphyritic Microgranite Wye Valley Formation Wyre River Terrace Deposits, 1 Member Wyre River Terrace Deposits, 2 Member Wyre Valley Formation Wyrley Bottom Coal (South Staffordshire) Wyrley Yard Coal (South Staffordshire) Wytch Farm Breccia Wyville Thomson Ridge Sequence [Obsolete: use WTR] Wyville-Thomson Ridge Formation Y Glog Volcanic Series [Obsolete: use MV] Y-Bridge Mugearite [Obsolete] Yahney Beds [Obsolete: use CKF] Yard Coal (Cheadle) Yard Coal (Coalbrookdale) Yard Coal (Cumbria) Yard Coal (Dungannon) Yard Coal (Goyt Trough) Yard Coal (Hanwood) Yard Coal (Leicestershire) Yard Coal (Milford, South Wales) Yard Coal (North Wales) Yard Coal (Northumberland) Yard Coal (South Derbyshire) Yard Coal (South Lancashire) Yard Coal (South Staffordshire) Yard Coal (South Wales; Duckmantian) Yard Coal (South Wales; Langsettian) Yard Coal (South Yorkshire And Nottingham And Derby) Yard Coal (Warwickshire) Yard Coal [Y] (Stoke) Yard Coal [Yd] (North Staffordshire) Yard Coal, Lower Leaf (Nottingham And Derbyshire) Yard Coal, Upper Leaf (Nottingham And Derbyshire) Yard Floor Coal (Nottingham) Yard Limestone Yard Mine Coal [Obsolete: use YCSL] Yard Rock (Nottinghamshire Area) Yard Rock (South Staffordshire) Yard Vein [Obsolete: use YCOM] Yare Catchments Subgroup Yare Valley Formation Yarlside Rhyolite [Obsolete: use YRL] Yarlside Volcanic Formation Yarmouth Roads Formation Yartleton Formation Yat Wood Formation Yat Wood Formation [Duplicate: use YAWO] Yate Evaporite Bed Yate Hard Coal (Bristol Area) Yate Little Coal (Bristol Area) Yateley Gravel Yawl Sandstone Member Yealm Formation Yealm Formation [Obsolete: use DRTM] Yedmandale Member Yedmandale Passage Member [Obsolete: use YED] Yell Pegmatite Swarm Yell Sound Group Yell Sound Psammite Formation Yellow Craig Plantation Plug Yellow Craig Plantation Vent Yellow Craig Plug Yellow Downtonian Yellow Farlow Sandstone [Obsolete: use FRL] Yellow Grits and Gervillia Beds [Obsolete: use YED] Yellow Guiting Stone [Obsolete: use CLCL] Yellow Man Dykes Yellow Man Vent Yellow Sand [Obsolete: use YWS] Yellow Sands [Obsolete: use YWS] Yellow Sands Formation Yellow Sandstone [Obsolete: use BKD] Yellow Sandstone Member Yellow Sandstones [Obsolete: use ISMS] Yellow Sandstones and Grey Marls [Obsolete: use ISMS] Yellow Stone [Obsolete: use CLCL] Yellowford Formation Yenpacott Breccia [Obsolete: use CRBR] Yeolmbridge Beds [Obsolete: use YF] Yeolmbridge Formation Yeovil Sands [Obsolete: use BDS] Yesnaby Sandstone Formation [Obsolete: use QAS] Yesnaby Sandstone Group Yewbank Formation Yewbank Member [Obsolete: use YBK] Yewbank Sandstone (in part) [Obsolete: use YBK] Ynysarwed Coal (South Wales) Ynyslas Formation Yoke House Formation Yoredale Beds (Undifferentiated) [Obsolete: use YORE] Yoredale Beds [Obsolete: use YORE] Yoredale Coal (Barnard Castle Area) Yoredale Formation (Offshore Areas) Yoredale Grit [Obsolete: use LOS] Yoredale Group Yoredales [Obsolete: use GTGP] York Moraine [Obsolete: use YORKM] York Moraine Member Yorke Rock Yorkley Coal (Forest Of Dean) Yorkshire Catchments Group [Obsolete: use YKC] Yorkshire Catchments Subgroup Yorkshire Dales Till Formation Yottenfews Formation [Obsolete: use YOT] Yottenfews Tuff Formation Young Sea Sands [Obsolete: use BH] Young Upper Beryl Sandstone [Obsolete: use HUGI] Younger Coombe Deposits Younger Head Younger River Gravels Younger Salt Marsh Deposits Younger Till Ypresian Rocks (Undifferentiated) Yr Allt Formation Yr Arddu Tuffs Formation Yr-Eifl Rhyolite-Microgranite Pluton Ysguborwen Formation Ystog Formation Ystrad Meurig Grits Facies [First Sequence] Ystrad Meurig Grits Facies [Second Sequence] Ystrad Meurig Grits Facies [Third Sequence] Ystrad Meurig Grits Formation Ystradwalter Member Zechstein Group Zechstein I - Depositional Cycle 1 [Obsolete: use ZG] Zechstein II - Depositional Cycle 2 [Obsolete: use ZG] Zechstein III - Depositional Cycle 3 [Obsolete: use ZG] Zechstein IV - Depositional Cycle 4 [Obsolete: use ZG] Zechstein V - Depositional Cycle 5 [Obsolete: use ZG] Zechstein VI - Depositional Cycle 6 [Obsolete: use ZG] Zechstein VII - Depositional Cycle 7 [Obsolete: use ZG] Zechsteinkalk Formation Zeeland Formation Zig Zag Chalk Formation Zig Zag Chalk Member [Obsolete: use ZZCH] Zones Of Silicification And/Or Vein-Quartz Of Unknown Age And Affinity Zulu Group
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