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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
866 LMGV  Lime-gravel - A type of lime-sediment. In the Rock Classification Scheme, it is a lime-sediment in which over 25% of clasts are larger than 2 mm. The grain size classes are defined in the same way as the siliciclastic sediments. British Geological Survey Research Report RR/99/03, section 3.1, table 2 and fig. 6. See also: silicate-gravel.  R  Lime-gravel          GRBA  24-FEB-00  TMCM  08-MAR-19    Grain supported sediment with components >50% calcite/aragonite. Clasts >50% or predominantly gravel-grade, >2mm.  C 
867 LMMC  Limestone, micritic  U  Micritic limestone  micritic        AWEL  05-SEP-02  TMCM  31-AUG-18    Sedimentary rock with components >50% calcite/aragonite. Crystals <0.004mm sub-microscopic.  C 
868 LMMCST  Lime-microstone - A type of limestone, classified on the basis of its diagenetic texture. It is similar to lime-sparstone but with crystals smaller than 4 µm. Crystals are not resolvable under an optical microscope. British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6.  R  Lime-microstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with crystals >50% calcite/aragonite, petrological study shows obliterative sparry calcite <0.004mm in inequant blocky mosaics. Crystals sub-microscopic.  C 
869 LMMD  Limestone, mudmound  N  Mudmound limestone          AWEL  15-APR-04  TMCM  24-AUG-18    Sediment/ary rock with components >50% calcite/aragonite. Particles mud-grade, <0.032mm. Genetic term for large carbonate bioherms low in skeletal component.  C 
870 LMMOC  Microoncoid-limestone - A type of limestone composed dominantly of microoncoids. British Geological Survey Research Report RR/99/03, section 3.1, table 4 and fig. 6.  R  Microoncoid-limestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with components >50% calcite/aragonite. Allochem dominantly as microoncoids, <2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present.  C 
871 LMMSPT  Lime-microsparstone - A type of limestone, classified on the basis of its diagenetic texture. It is similar to lime-sparstone but with 4 - 32 µm crystal size. Crystals are resolvable under an optical microscope. British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6.  R  Lime-microsparstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with crystals >50% calcite/aragonite, petrological study shows obliterative sparry calcite, 0.004 to 0.032mm (microscopic) in inequant blocky mosaics.  C 
872 LMMST  Lime-mudstone - A type of limestone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported limestone composed of greater than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.1, table 3 and fig. 6.  R  Lime-mudstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with components >50% calcite/aragonite. Particles >50% or predominantly mud-grade, <0.032mm.  C 
873 LMMUD  Lime-mud - A type of lime-sediment. In the Rock Classification Scheme, it is a lime-sediment in which over 75% of the clasts are smaller than 32 µm. The grain size classes are defined in the same way as the siliciclastic sediments. British Geological Survey Research Report RR/99/03, section 3.1, table 2 and fig. 6. See also: silicate-mud.  R  Lime-mud          GRBA  24-FEB-00  TMCM  08-MAR-19    Sediment with components >50% calcite/aragonite. Particles >50% or predominantly mud-grade, <0.032mm.  C 
874 LMONC  Oncoid-limestone - A type of limestone composed dominantly of oncoids. British Geological Survey Research Report RR/99/03, section 3.1, table 4 and fig. 6. Synonym: lime-oncolite.  R  Oncoid-limestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sediment with components >50% calcite/aragonite. Allochem dominantly as oncoids, >2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present. Component size not defined.  C 
875 LMOOL  Ooid-limestone - A type of limestone composed dominantly of ooids. British Geological Survey Research Report RR/99/03, section 3.1, table 4 and fig. 6. Synonyms: ooidal limestone; limestone, ooidal.  R  Ooid-limestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with components >50% calcite/aragonite. Ooids dominant allochem, <2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures.  C 
876 LMPBF  Lamprophyre, foliated-biotite  U  Foliated-biotite lamprophyre  foliated  biotite      AWEL  21-MAY-02  TMCM  31-AUG-18    Meta-lamprophyre exotic crystalline intrusive melano-mesocratic panidiomorphic rock; mafic phenocrysts +/-orthoclase/plagio/felspathoids/glass in matrix. 5-20% biotite, <5mm planar texture/structure from preferred orientation of platy/prismatic minerals.  C 
877 LMPBI  Lamprophyre, biotite  U  Biotite lamprophyre  biotite        AWEL  26-FEB-01  TMCM  31-AUG-18    Exotic crystalline intrusive melano-mesocratic panidiomorphic rock; mafic phenocrysts of +/-Fe-phlogopite/amphibole/pyroxene/diopsidic & Ti-rich augite/olivine/melilite, +/-orthoclase/plagioclase/felspathoid/glass mainly in matrix. 5-20% biotite.  C 
878 LMPDL  Lamproite, diopside-leucite - A type of lamproite. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: cedricite.  U  Diopside-leucite lamproite  diopside  leucite      AWEL  17-DEC-04  TMCM  22-FEB-19    Exotic crystalline intrusive rock; diop C 
879 LMPDLP  Lamproite, diopside-leucite-phlogopite - A type of lamproite. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: wyomingite.  U  Diopside-leucite-phlogopite lamproite  diopside  leucite  phlogopite    AWEL  17-DEC-04  TMCM  22-FEB-19    Exotic crystalline rock; diop C 
880 LMPDM  Lamproite, diopside-madupitic - A type of lamproite. The term madupitic indicates that the rock contains poikilitic groundmass phlogopite, as opposed to a phlogopite lamproite in which the phlogopite occurs as phenocrysts. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: madupite.  U  Diopside-madupitic lamproite  diopside  madupitic      AWEL  17-DEC-04  TMCM  22-FEB-19    Exotic crystalline rock; 5-20% diop, poikilitic g'ndmss Ti-phlog/Ti-tetraferriphlog, 5-90vol%, phenocrystic Fe-leuc/richter/forsteritic olivine/sanid, no primary plag/mel/monticell/kals/neph/Na-feld/sodal/nosean/hauyne/melan/schorlom/kimzeyite. Madupite  C 
881 LMPDSP  Lamproite, diopside-sanidine-phlogopite - A type of lamproite. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: orendite.  U  Diopside-sanidine-phlogopite lamproite  diopside  sanidine  phlogopite    AWEL  17-DEC-04  TMCM  22-FEB-19    Exotic crystalline rock; diopside C 
882 LMPEL  Peloid-limestone - A type of limestone composed dominantly of peloids. British Geological Survey Research Report RR/99/03, section 3.1, table 4 and fig. 6.  R  Peloid-limestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with components >50% calcite/aragonite. Peloids dominant allochem, 0.01 to 0.5mm spherical/ellipsoidal microcrystalline (<0.004mm) carbonate grains, internally structureless. Pellet if of faecal origin.  C 
883 LMPESP  Lamproite, enstatite-sanidine-phlogopite - A type of lamproite. British Geological Survey Research Report RR/99/06, section 6.5. Synonym: cancalite.  U  Enstatite-sanidine-phlogopite lamproite  enstatite  sanidine  phlogopite    AWEL  17-DEC-04  TMCM  22-FEB-19    Exotic crystalline rock; enstatite C 
884 LMPHB  Lamprophyre, hornblende  U  Hornblende lamprophyre  hornblende        AWEL  26-FEB-01  TMCM  31-AUG-18    Exotic crystalline intrusive melano-mesocratic panidiomorphic rock; mafic phenocrysts of +/-biotite/Fe-phlogopite/pyroxene/diopsidic & Ti-rich augite/olivine/melilite, +/-orthoclase/plagioclase/felspathoid/glass mainly in matrix. 5-20% hornblende.  C 
885 LMPIS  Pisoid-limestone - A type of limestone composed dominantly of pisoids. British Geological Survey Research Report RR/99/03, section 3.1, table 4 and fig. 6.  R  Pisoid-limestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock with components >50% calcite/aragonite.Pisoids dominant allochem, >2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures.  C 

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