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DIC_ROCK_NAMEV3 (3025 rows)
Dictionary table which is part of version 3 of the BGS Rock Classification Scheme. The main part of the RCS - it contains only single lithologies.


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Row CODE DESCRIPTION RCS_STATUS TRANSLATION Q1 Q2 Q3 Q4 USER_ENTERED DATE_ENTERED USER_UPDATED DATE_UPDATED TRANSFER DEFINITION_BKING STATUS
206 BCS  Boulders, clayey, sandy [Unlithified Deposits Coding Scheme]  U  Sandy clayey boulders [UDCS]  clayey  sandy      DJLO  20-FEB-09  TMCM  30-AUG-18  I  Not Available  C 
207 BCSV  Boulders, clayey, sandy, gravelly [Unlithified Deposits Coding Scheme]  U  Gravelly sandy clayey boulders [UDCS]  clayey  sandy  gravelly    DJLO  20-FEB-09  TMCM  30-AUG-18  I  Not Available  C 
208 BCV  Boulders, clayey, gravelly [Unlithified Deposits Coding Scheme]  U  Gravelly clayey boulders [UDCS]  clayey  gravelly      DJLO  20-FEB-09  TMCM  30-AUG-18  I  Not Available  C 
209 BDCOAL  Banded-dull-coal - A type of bituminous-coal, classified according to brightness. British Geological Survey Research Report RR/99/03, section 6.1 and fig. 10.  R  Banded-dull-coal          GRBA  24-FEB-00  TMCM  08-MAR-19    Bituminous coal brightness type. Prefix defines type  C 
210 BENMOR  Benmoreite - A sodic trachyandesite. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.  R  Benmoreite          GRBA  24-FEB-00  TMCM  22-FEB-19    Fine-grained, av.<0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 53-63wt%, Na2O+K2O 5.9-11.7wt%, (Na2O-2.0)>K2O. Sodic trachyandesite  C 
211 BGCCOL  Boghead-cannel-coal - A type of sapropelic-coal. It is a transitional stage between cannel-coal and boghead-coal in which miospores dominate over alginite. British Geological Survey Research Report RR/99/03, section 6.2 and fig. 10.  R  Boghead-cannel-coal          GRBA  24-FEB-00  TMCM  08-MAR-19    Sapropelic coal. Brown, mud-grade rock particles, >75% <0.032mm. Miospores >alginite. Macroscopically unstratified. Microscopically alginite with very finely dispersed inertinite & vitrinite. Torbanite  C 
212 BGCOL  Boghead-coal - A type of sapropelic-coal. It is similar to cannel-coal but browner and rich in alginite with very few miospores. It appears unstratified on macroscopic examination. Microscopic examination shows that boghead-coal consists of alginite and very finely dispersed inertinite and vitrinite. The proportion of alginite can vary widely. Boghead-coal is sometimes referred to as torbanite. This term is not recommended for usage. British Geological Survey Research Report RR/99/03, section 6.2 and fig. 10.  R  Boghead-coal          GRBA  24-FEB-00  TMCM  08-MAR-19    Sapropelic coal. Brown, mud-grade rock particles, >75% <0.032mm. Alginite dominant but variable, minor miospores. Macroscopically unstratified. Microscopically alginite with very finely dispersed inertinite & vitrinite. Torbanite  C 
213 BGFEOR  Bog iron-ore - A type of manganiferous/ferruginous deposit. It is a porous, earthy form of limonite (impure hydrous ferric oxide). British Geological Survey Research Report RR/99/04, section 4 and tables 5, 17.  R  Bog iron-ore          GRBA  24-FEB-00  TMCM  13-MAR-19    Genetic term for soft, spongy limonite deposit impregnated with plant debris/clay/clastic material. Precipitated from ferruginous water, oxidised by algae/iron bacteria/the atmosphere in bogs/marshes/shallow lakes. Particle size undefined. Bog-ironstone  C 
214 BGR  Boulders, granite [Unlithified Deposits Coding Scheme - Extended]  U  Granite boulders [UDCS-X]  granite        TMCM  27-MAY-20      I  Not Available  C 
215 BHAW  Hawaiite, basaltic  U  Basaltic hawaiite  basaltic        DJLO  07-JUL-08  TMCM  31-AUG-18  I  Not Available  C 
216 BIODP  Biological deposit - A type of natural superficial deposit. The term describes a deposit directly formed and characterised by living organisms which secrete either silica or carbonate to form a skeleton or shell. British Geological Survey Research Report RR/99/04, appendix 2.  A  Biological deposit          GRBA  24-FEB-00  TMCM  13-MAR-19    Not Available  C 
217 BIOM  Deposit, mussel  U  Mussel deposit  mussel        AWEL  09-JAN-02  TMCM  31-AUG-18    Not Available  C 
218 BIOR  Biological rock - A type of biological deposit. In the Rock Classification Scheme, it is the consolidated equivalent of biological sediment.  A  Biological rock          GRBA  24-FEB-00  TMCM  13-MAR-19    Not Available  C 
219 BIOSD  Biological sediment - A type of biological deposit. In the Rock Classification Scheme, it is the unconsolidated equivalent of biological rock.  A  Biological sediment          GRBA  24-FEB-00  TMCM  13-MAR-19    Not Available  C 
220 BIOSND  Bioclastic sand deposit - A type of biological sediment. It consists of sand composed of broken and fragmental remains of organisms including shells, coral and lithothamnium algae. British Geological Survey Research Report RR/99/04, appendix 2.  A  Bioclastic sand deposit          GRBA  24-FEB-00  TMCM  13-MAR-19    Silicicalstic sediment with >50% grains from pre-existing siliceous rocks. Grains >50% or predominantly sand-grade, 0.032 to 2mm. Contains 5-20% bioclasts, (fossil fragments). Bioclast composition & components depositional environment not defined  C 
221 BITCOL  Bituminous-coal - A type of coal. It is a member of the pure humic coal series. The members of the pure humic coal series can be ranked in order as peat (the unlithified form), lignite, bituminous-coal, and anthracite (the lithified forms) based on increasing carbon content and decreasing volatile content. Bituminous-coal is a black, hard and bright coal which typically breaks into rectangular lumps. The bituminous coals can be subdivided in two ways. The first scheme is based on lithotypes which are macroscopically recognisable bands of coal seams. This scheme can be used for describing individual specimens or discrete horizons within a coal seam. Using this scheme, bituminous-coal can be subdivided into vitrain, clarain, fusain, and durain. The second scheme describes the brightness of the coal, and should be used in the field to describe megascopically distinct layers of coal seams. Using this scheme, bituminous-coal can be subdivided into bright-coal, banded-bright-coal, banded-coal, banded-dull-coal, and dull-coal. British Geological Survey Research Report RR/99/03, section 6.1, table 16 and fig. 10.  A  Bituminous-coal          GRBA  24-FEB-00  TMCM  08-MAR-19    Lithified, hard, bright, black mixture of a wide range of plant debris of rarely discernable type. Fine-grained, 0.032-0.25mm organic matrix. 75 to 90% carbon, dry, ash-free. Volatiles 14 to 46%. Largely carbonised, breaks into rectangular lumps.  C 
222 BITDP  Bituminous deposit  U  Bituminous deposit  bituminous        AWEL  25-FEB-00  TMCM  31-AUG-18    Sediment with significantly high organic, dominantly of bituminous material, content to noticeably effect the lithology. A tar sand/bitumen lake. Alt. A humic black, hard, bright coal type with 75-90% carbon, dry ash-free & 14-46% volatiles.  C 
223 BKLIGN  Black-lignite - A type of lignite. It is dark brown to black with a silky lustre, and much harder than brown-lignite. British Geological Survey Research Report RR/99/03, section 6.1 and fig. 10.  R  Black-lignite          GRBA  24-FEB-00  TMCM  08-MAR-19    Lithified, dark-brown/black, silky lustre mixture of range of plant debris many individually discernable. Fine 0.032-0.25mm organic matrix. 60-75% carbon, dry, ash-free. Volatiles 46-63%. Partly carbonised, cracks/breaks on drying. Hardness >brown-lignite  C 
224 BL  Boulders, cobbly [Unlithified Deposits Coding Scheme]  U  Cobbly boulders [UDCS]  cobbly        AWEL  17-DEC-04  TMCM  30-AUG-18    Not Available  C 
225 BLBTPH  Block-bomb-tephra - A type of pyroclastic-sediment. In the Rock Classification Scheme, it is a pyroclastic-sediment in which the average size of more than 75% of the pyroclastic fragments exceeds 64 mm. Block-tephra, bomb-block-tephra, block-bomb-tephra, and bomb-tephra are separated according to the relative proportion of blocks (angular fragments exceeding 64 mm) and bombs (rounded fragments exceeding 64 mm): if between 25% and 50% of all pyroclastic fragments bigger than 64 mm are blocks the sediment is block-bomb-tephra. It is the unconsolidated equivalent of agglomerate. British Geological Survey Research Report RR/99/06, section 4.2 and fig. 4.  R  Block-bomb-tephra          AWEL  17-DEC-04  TMCM  15-FEB-19    Unimodal, well sorted, unlithified clastic material >10% debris formed by volcanic processes, >75% pyroclastic fragments, >75vol% >64mm blocks C 

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