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
?Glenramskill Formation
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 [Duplicate: use *20]
3rd Terrace of River Cam [Obsolete: use HNRD]
3rd Terrace Of River Lark (Bristow,1990)
48 Yard Band Coal (West Yorkshire)
48 Yard Band Coal (West Yorkshire) [Duplicate: use FEYC]
48 Yard Rock
4th Terrace of River Cam [Duplicate: use *423]
4th Terrace of River Cam [Obsolete]
4th Terrace of River Lark [Duplicate: use -247]
4th Terrace of River Lark [Obsolete: use FHAM]
5 Foot Vein [Obsolete: use 5FTC]
5th Terrace Of River Lark [Duplicate: use -891]
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 Coal [Duplicate: use ABDY]
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 [Duplicate: use ABB]
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 Coal [Duplicate: use ACRE]
Acre Limestone [Duplicate: use ACRL]
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 Black Bed Coal [Duplicate: use ADBB]
Adwalton Stone Coal
Aed Mheall Member (Western Intrusion, Rum Layered Suite)
Aegiranum Marine Band
Aegiranum Marine Band [Duplicate: use AGMB]
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 Member (Warwickshire Avon)
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 [Duplicate: use ABNMB]
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 [Obsolete: use ASGL]
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 [Obsolete: use CSW]
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 and river terrace deposits [Duplicate: use ALRT]
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 [Duplicate: use ALMB]
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 [Duplicate: use AMNMB]
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)
Andsell Mudstone Member
Angulata Beds [Obsolete: use SASH]
Angulata Clays [Obsolete: use SMD, BNBM]
Angulatum Clays [Obsolete: use BNBM]
Angus Sand [Duplicate: use -5103]
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]
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 [Duplicate: use APB]
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.
Approximates to Productive Coal Measures [Duplicate: use LMCM]
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 Fawddwyf Formation [Obsolete: use LLNC]
Aran Volcanic Group
Arbigland Beds [Obsolete: use ARLM]
Arbigland Group [Duplicate: use ARGP]
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
Arctic Freshwater Bed
Arctic Freshwater Bed [Duplicate: use FRESA]
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) [Duplicate 1: use AM]
Ardwick Marl(s) [Duplicate 2: use AM]
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 [Duplicate: use ARGMB]
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 [Duplicate: use -654]
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 Main Coal [Duplicate: use ARM]
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 [Duplicate: use ASHMB]
Ashclough Marine Band [Local Name: see MTMB]
Ashclough Mine Coal [Duplicate: use -3807]
Ashclough Mine Coal [Obsolete: use ASHC]
Ashcombe Gravel Member
Ashdown Beds [Duplicate 2: use AN]
Ashdown Beds [Duplicate: use AN]
Ashdown Beds [Obsolete: use ASD]
Ashdown Formation
Ashdown Sand(s) [Duplicate: use ASHS]
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 Coal [Duplicate: use AGC]
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 Coal [Duplicate: use ASHN]
Ashington High Main Coal (Northumberland) [Obsolete: use ASHN]
Ashington High Main Coal [Duplicate: use ASHI]
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 [Duplicate: use -1303]
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 [Duplicate: use -17]
Ashton Shale Member [Obsolete: use ANSH]
Ashton Top Coal (Bristol Area)
Ashton Vale Marine Band [Duplicate: use AVAMB]
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 [Duplicate: use AFG]
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
Bacton Member [Duplicate: use BACTO]
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 [Duplicate: use BTHMB]
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)
Ball Coal [Duplicate: use BALL]
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 [Duplicate: use -3878]
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 Coal [Duplicate: use BARC]
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 [Duplicate: use -2624]
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 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)
Bassey Mine Coal [Duplicate: use BAMC]
Bassingfield Sand and Gravel [Obsolete: use BASG]
Bassingfield Sand And Gravel Member
Bassingham Fen Member [Obsolete: use FULB]
Bassy Coal (South Lancashire)
Bassy Coal [Duplicate: use BMCO]
Bassy Mine Coal [Duplicate: use -1364]
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 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)
Beaumont Coal [Duplicate: use BMNT]
Bebside Bank Seam (D/De1)
Beccles Formation
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
Beechwood Conglomerate Bed [Duplicate: use BCWC]
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)
Bellingham Coal [Duplicate: use BELL]
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 [Duplicate: use DBBL]
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)
Bensham Coal [Duplicate: use BEN]
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 Coal (South Wales) [Duplicate 2: use BGCO]
Big Coal [Duplicate: use BGCO]
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 [Duplicate: use -3230]
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
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 [Duplicate: use -2576]
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 Coal (South Wales) [Duplicate: use BLAK]
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 [Duplicate: use BMET]
Black Metals Marine Band [Local Name: see HTMB]
Black Metals Member
Black Mine Coal [Duplicate: use -2000]
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]
Blackclose Coal [Duplicate: use BKCC]
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 [Duplicate: use BSTMB]
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)
Blairhall Main Coal [Duplicate: use BLMC]
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 [Duplicate: use -3224]
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 Coal (West Yorkshire) [Duplicate: use BLBC]
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 [Duplicate: use BLS]
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 [Duplicate: use BTNMB]
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 Busty Coal [Duplicate: use BBU]
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 [Duplicate: use -4487]
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 [Duplicate: use *775]
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 Plessey Coal (Northumberland) [Duplicate: use BPLY]
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 [Duplicate: use -732]
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
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 [Duplicate: use -3867]
Bradford Four Foot Mine Coal [Obsolete: use BR4FT]
Bradford Marine Band [Duplicate: use BFDMB]
Bradford Marine Band [Local Name: see HTMB]
Bradford Threequarters Coal (South Lancashire)
Bradford Threequarters Mine Coal [Duplicate: use -1322]
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 Formation
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 [Duplicate: use BRNG]
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 [Duplicate: use BWKMB]
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 [Duplicate: use BRIMB]
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 Main Coal (Northumberland) [Duplicate: use BRMN]
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 [Duplicate: use -1382]
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 [Duplicate: use -2640]
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 [Duplicate: use BB]
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 Coal [Duplicate: use BRYNC]
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)
Bryncoch Coal [Duplicate: use BRYN]
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]
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 Joyce Marine Band [Duplicate: use BJMB]
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 [Duplicate: use BUS]
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 [Duplicate: use CBN]
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 [Duplicate: use CDN]
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 2: use CCGA]
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
Caley Crags Grit [Duplicate: use CLCG]
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 [Duplicate: use -2674]
Cannel Mine Coal [Obsolete: use CCSL]
Cannel Mine Marine Band [Duplicate: use CLMMB]
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) [Obsolete: use TIL]
Carboniferous Limestone [Obsolete: use CL]
Carboniferous Limestone Series [Obsolete: use 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 2: use CGO]
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 [Obsolete: use CEI]
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)
Carriteth Coal [Duplicate: use CRTC]
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 (Undivided) [Duplicate: use -803]
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]
Carstone of the Isle of Wight [Duplicate: use CAW]
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 [Duplicate: use CVO]
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 [Duplicate: use CBSH]
Cefn Bryn Shales [Obsolete: use AVO]
Cefn Coch Grit Member
Cefn Coed Marine Band [Duplicate: use CCDMB]
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 2: use CMST]
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)
Cenrhos Coal [Duplicate: use CRHC]
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
Cerig Formation [Duplicate: use CER]
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 [Duplicate: use CPSMB]
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]
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 [Duplicate: use CHSMB]
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 [Duplicate: use -2698]
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 [Duplicate: use -778]
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 Coalfield) [Duplicate: use CLAY]
Clay Coal (South Wales)
Clay Cross Marine Band [Duplicate: use CLCMB]
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 [Duplicate: use CWFL]
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 [Duplicate: use CTNMB]
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 [Duplicate: use CGP]
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
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 (Of MCLFS)
Clyde Plateau Subsuite [Of SSDPV]
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
Coal Measures Group (Scotland) [Obsolete: use CMSC]
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
Coalbrookdale Formation [Duplicate: use CBRD]
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 [Duplicate: use CIMB]
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]
Coat Walls Mudstones [Duplicate: use -4579]
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 Coal [Duplicate: use CLCO]
Cockleshell Limestone
Cocklett Scar Flags [Obsolete: use COSS]
Cocklett Scar Sandstone
Cocklett Scar Sandstone Member [Duplicate: use -812]
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 Formation
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 (part) [Duplicate: use -2531]
Coleby Mudstone Formation [Obsolete: use CHAM, WHM]
Coleby Mudstones [Obsolete: use CHAM, WHM]
Coleby Mudstones Formation [Duplicate 2: use -2531]
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
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)
Comb Coal [Duplicate: use CMCO]
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 [Obsolete]
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 Coal (Nottingham and Derby) [Duplicate: use CMBC]
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 [Obsolete: use KNW]
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]
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 [Duplicate: use -3968]
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 Rough Coal [Duplicate: use CROU]
Cowglen Sclutty Coal (Glasgow)
Cowglen Sclutty Coal [Duplicate: use CSCO]
Cowglen Smithy Coal (Glasgow)
Cowglen Stinking Coal (Glasgow)
Cowglen Stinking Coal [Duplicate: use CSTI]
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 Harbour Siltstone Member [Duplicate: use CHSI]
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 Coal [Duplicate: use CRCK]
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 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-Ffynnon Formation
Craig-y-Ffynnon Formation [Duplicate: use CFF]
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 [Duplicate 1: use -793]
Creag Mhor Conglomerates [Duplicate 2: use -793]
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)
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 Fach Coal (South Wales) [Duplicate: use CFHC]
Cribbwr Fawr Coal (South Wales)
Cribbwr Fawr Coal (South Wales) [Duplicate: use CFRC]
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 [Duplicate: use -2742]
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 [Duplicate: use CSEMB]
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
Cromlix Mudstone Formation [Duplicate: use CXF]
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 [Duplicate: use -4520]
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 Coal (West Yorkshire) [Duplicate: use CRCL]
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)
Crown Coal (North Wales) [Duplicate: use CWNC]
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 [Duplicate: use -3334]
Crumbouke Mine Coal [Obsolete: use CRUM]
Crummack Formation
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 [Duplicate: use CWBMB]
Cwm Berem Marine Band [Local Name: see LGMB]
Cwm Clwyd Ash [Obsolete: use CCT]
Cwm Clwyd Tuff [Obsolete: use CCT]
Cwm Clwyd Tuff Formation [Duplicate: use CCT]
Cwm Clwyd Tuff Formation [Obsolete: use CGTU]
Cwm Clyd Sandstone
Cwm Crychan Formation [Duplicate 2: use CWCR]
Cwm Crychan Formation [Duplicate: use CWCR]
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 Coal [Duplicate: use DYCO]
Dandy Mine Coal [Duplicate: use *379]
Dandy Mine Coal [Obsolete: use DYCO]
Dandy Rock
Dane Hills Sandstone Group [Obsolete: use AS]
Dane Hills Sandstone Member [Duplicate: use DHSM]
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 [Duplicate: 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 Formation [Duplicate 3: 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 Formation [Obsolete: use DPD]
Deepdale Sandstone Formation
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 [Duplicate: use -3988]
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 [Duplicate: use DVA]
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 Formation [Duplicate: use DLN]
Derryloran Grit Formation [Duplicate: use DLG]
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 [Duplicate: use DICT]
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 [Duplicate: use DNMB]
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 [Duplicate: use DMMB]
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 [Duplicate: use -1511]
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)
Dougaled Rider Coal [Duplicate: use DORC]
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)
Drews Coal [Duplicate: use DRWC]
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 [Duplicate: use DL]
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 [Duplicate: use DNC]
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 [Duplicate: use DUKMB]
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 Formation [Duplicate 3: 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 Member
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 [Duplicate: use *643]
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
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]
Equates with Meadow House Clay Member [Duplicate: use MWHO]
Equates With The Grey Grits Of The Merthyr Tydfil District [Duplicate: use GGRIT]
Equivalent To Bedminster Great Coal [Duplicate: use BEGT]
Equivalent To Clee Group [Duplicate: use CGP]
Equivalent To Part Of The Lower Limestone Formation Of The Midland Valley [Duplicate: use LLGS]
Equivalent To Pendle Top Grit.
Equivalent To Skipton Moor Grit [Duplicate: use SM]
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 [Duplicate: use EFMMB]
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 [Duplicate: use -1542]
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 [Duplicate: use FBQ]
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 [Duplicate: use DBFB]
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 [Duplicate: use FLS]
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
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 [Duplicate: use FADF]
Fernagh Andesite and Dacite Formation [Obsolete: use FRNA]
Fernagh Formation
Fernagh Formation [Duplicate: use FRNA]
Fernham Sand Member
Fernieslack Palaeosol Bed
Fernrag Coal (Somerset)
Ferriby Chalk Formation
Ferriby Formation [Obsolete: use FYCK]
Ferricrete
Ferruginous Band [Obsolete: use CI]
Ferruginous Limestone
Ferruginous Limestone Series [Duplicate: use -4887]
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' [Duplicate: use FETH]
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
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
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)
Finery Coal (South Wales) [Duplicate: use FINY]
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 Brown Metal Coal [Duplicate: use BNM1]
First Cromer Till [Obsolete: use HPTI]
First Ell Coal (Nottingham and Derby)
First Ell Coal [Duplicate: use FEC]
First Kingshaw Limestone
First Limestone (Cumbria)
First Limestone [Obsolete: use GL]
First Limestone To Second Limestone (Undifferentiated) (Cumbria)
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 Coal [Duplicate: use FSMC]
First Smalley Marine Band [Duplicate: use FSMMB]
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 [Duplicate: use 5RDMB]
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)
Flockton Thin Coal [Duplicate: use FTNC]
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 [Duplicate: use FGSG]
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 [Duplicate: use -912]
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 [Duplicate: use FORMB]
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 [Duplicate: use PDE]
Fordon Evaporites [Obsolete: use FOEV]
Fordyce Limestone Formation
Fore Burn Complex
Foreland Grits [Obsolete]
Forest Bed
Forest Bed [Duplicate: use FORST]
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
Forse Till Member [Duplicate: use FOTI]
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 [Duplicate: use 40YMB]
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 Feet Vein Coal [Duplicate: use *124]
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 [Duplicate: use -1546]
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 [Duplicate: use *155]
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 [Duplicate: use FRES]
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) [Duplicate: use FCFE]
Frome Clay and Fuller's Earth (Undifferentiated) [Obsolete: use FEFR]
Frome Clay Formation
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 [Duplicate: use -265]
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 Formation and Frome Clay Formation (Undifferentiated) [Duplicate: use FEFR]
Fuller's Earth Rock Member
Fulletby Beds [Duplicate: use FBB]
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)
Furnace Coal [Duplicate: use FUC]
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]
Fynnon Limestones
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 [Duplicate: use GNLMB]
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 [Obsolete: use LVT]
Garth Tuff Member
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)
Garw Coal (South Wales) [Duplicate 2: use GARC]
Garw Coal (South Wales) [Duplicate: use GARC]
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)
Gellideg Coal (South Wales) [Duplicate: use GDCO]
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 Jewel Coal [Duplicate: use GJC]
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 [Duplicate: use GILS]
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 [Duplicate: use GINMB]
Gin Mine Marine Band [Local Name: see AGMB]
Gingham Coal (South Lancashire)
Gingham Mine Coal [Duplicate: use -935]
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 [Duplicate: use GFDD]
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 [Duplicate: use GPVD]
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 Formation [Duplicate 3: 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 2: use GAA]
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 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)
Gnapiog Coal [Duplicate: use GNAP]
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)
Golden Coal (South Wales) [Duplicate: use GOLC]
Golden Coal [Duplicate: use GOLL, GOLC]
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)
Goodig Coal (South Wales) [Duplicate: use GOCO]
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 [Duplicate: use GCGF]
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 Blackband Ironstone [Duplicate: use GOBI]
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 [Duplicate: use GGGMB]
Graigog Marine Band [Local Name: see MTMB]
Graigog Rider Coal (South Wales)
Graigola Coal (South Wales)
Graigola Coal [Duplicate: use GRAC]
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 Sandstone [Duplicate: use GNST]
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)
Grassington Grit
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
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 2: use GBD]
Green Beds [Duplicate 3: use GBD]
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 Coal (South Wales) [Duplicate: use GRNC]
Green Croft Till Member
Green Grove Sandstone
Green Keuper Basement Beds [Obsolete: use RTF]
Green Lane Coal
Green Member
Green Member [Duplicate: use GRE]
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)
Greengairs Smithy Coal [Duplicate: use GRSC]
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 Beds [Duplicate: use GRY]
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 [Duplicate: use -1217]
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 [Duplicate: use GRN]
Gronant Group [Obsolete: use CLWYD, CRAV]
Grorudite Swarm [Duplicate: use GRUD]
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 [Duplicate: use GUMB]
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)
Gwersyllt Little Coal (North Wales) [Duplicate: use GWLC]
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 [Duplicate: use HHMB]
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 [Duplicate: use HBBMB]
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 [Duplicate: use HBMB]
Hard Bed Marine Band [Local Name: see LSMB]
Hard Coal (Bristol Area)
Hard Coal (South Lancashire)
Hard Coal (South Wales)
Hard Mine Coal [Duplicate 2: use HDMC]
Hard Mine Coal [Duplicate: use HDMC]
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
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 [Duplicate: use HSTMB]
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 Coal [Duplicate: use HARV]
Harvey Marine Band [Duplicate: use HA