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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
766 GYMDST  Gypsum-mudstone - A type of gypsum-stone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported gypsum-stone composed of greater than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-mudstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock components >50% non-carbonate sulphate salts, >50% of non-carbonate salt is gypsum (CaSO4.2H2O). Components >50% or predominantly mud-grade, <0.032mm.  C 
767 GYPGST  Gypsum-grainstone - A type of gypsum-stone, classified on the basis of its depositional texture. It is a grain-supported gypsum-stone with little matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-grainstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Grain-supported sedimentary rock components >50% non-carbonate salt, sulphate, >50% of non-carbonate salt is gypsum (CaSO4.2H2O), <15% matrix, (particles <0.032mm). Component size not defined.  C 
768 GYPGV  Gypsum-gravel - A type of gypsum-sediment that is composed of gravel-sized (> 2 mm) particles. British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-gravel          GRBA  24-FEB-00  TMCM  08-MAR-19    Sediment components >50% non-carbonate salt sulphate, >50% of non-carbonate salt is gypsum (CaSO4.2H2O). Mohr's 2, several crystal habits, commonly white/pink. Clasts >50% or predominanlty gravel-grade, >2mm.  C 
769 GYPPST  Gypsum-packstone - A type of gypsum-stone, classified on the basis of its depositional texture. It is a grain-supported gypsum-stone with intergranular spaces filled by matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-packstone          GRBA  24-FEB-00  TMCM  08-MAR-19    Grain-supported sedimentary rock, components >50% non-carbonate sulphate salts, >50% of non-carbonate salt is gypsum (CaSO4.2H2O). Matrix (<0.032mm) fills intergranular spaces. Non-matrix component size not defined.  C 
770 GYPS  Gypsum  -  Gypsum          GRBA  24-FEB-00  TMCM  24-AUG-18    Non-carbonate salt mineral (CaSO4.2H2O) Mohr's2, several crystal habits. Commonly pink or white. Crystal size not defined. An evaporite.  O 
771 GYPSED  Gypsum-sediment - A type of non-carbonate salt-sediment that is composed of particles of the sulphate mineral gypsum. It is the unlithified equivalent of gypsum-stone. British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  A  Gypsum-sediment          AWEL  26-JUL-02  TMCM  08-MAR-19    Sediment, crystals >50% non-carbonate salt sulphate. Gypsum (CaSO4.2H2O) >50% of non-carbonate salt crystals. Mohr's 2, several crystal habits, commonly white/pink. Crystal size not defined. An evaporite.  C 
772 GYPSND  Gypsum-sand - A type of gypsum-sediment that is composed of sand-sized (32 µm - 2 mm) particles. British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-sand          GRBA  24-FEB-00  TMCM  08-MAR-19    Sediment components >50% non-carbonate sulphate salts, >50% of non-carbonate salt is gypsum (CaSO4.2H2O). Mohr's 2, several crystal habits, commonly white/pink. Components >50% or predominantly sand-grade, 0.032 to 2mm.  C 
773 GYPST  Gypsum-stone - A type of non-carbonate salt that is composed of particles of the sulphate mineral gypsum. It is the lithified equivalent of gypsum-sediment. The textural classification of gypsum-stones follows that for limestone. British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-stone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock components >50% non-carbonate salt sulphate, >50% of non-carbonate salt crystals is gypsum (CaSO4.2H2O). Mohr's 2, several crystal habits, commonly white/pink. Component size not defined.  C 
774 GYWST  Gypsum-wackestone - A type of gypsum-stone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported gypsum-stone composed of less than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 7.2 and fig. 11.  R  Gypsum-wackestone          GRBA  24-FEB-00  TMCM  08-MAR-19    Matrix supported sedimentary rock with components >50% non-carbonate sulphate salts, >50% of non-carbonate salt is gypsum (CaSO4.2H2O). <75% matrix (<0.032mm), composition not defined.  C 
775 H  Shells [Unlithified Deposits Coding Scheme - Extended] - A type of natural superficial deposit. The Unlithified Deposits Coding Scheme - Extended is an extension to the Unlithified Deposits Coding Scheme, for deposit types not defined in the original scheme.  R  Shells [UDCS-X]          TMCM  28-MAY-20      I  Not Available  C 
776 HALI  Halite  -  Halite          GRBA  24-FEB-00  TMCM  24-AUG-18    Crystals of sodium chloride (NaCl) Cubic, crystalline/massive/granular, Mohr's 2.5, commonly white, salty taste commonly hopper faced cubes. Crystal size not defined.  O 
777 HALIST  Halite-stone - A type of non-carbonate salt that is composed of particles of the chloride mineral halite. British Geological Survey Research Report RR/99/03, section 7.1 and fig. 11.  R  Halite-stone          GRBA  24-FEB-00  TMCM  08-MAR-19    Sedimentary rock crystals >50% non-carbonate salt,chloride. Halite (NaCl) >50% of non-carbonate salt crystals. Cubic, crystalline/massive/granular, Mohr's 2.5, commonly white, salty taste. Crystal size not defined.  C 
778 HAW  Hawaiite - A sodic trachybasalt. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.  R  Hawaiite          GRBA  24-FEB-00  TMCM  22-FEB-19    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 45-52wt%, Na2O+K2O 5-7.3wt%, (Na2O-2.0)>K2O. Sodic trachybasalt  C 
779 HAWAPH  Hawaiite, aphyric  U  Aphyric hawaiite  aphyric        DJLO  30-NOV-06  TMCM  31-AUG-18  I  Not Available  C 
780 HBAR  Basaltic-rock, hornfelsed  U  Hornfelsed basaltic-rock  hornfelsed        AWEL  21-MAY-02  TMCM  31-AUG-18    Basaltic-rock protolith recrystallised by contact metamorphism to a hard rock lacking parting planes. Was <0.25mm grained normal crystal in-/extrusive rock; CI >35 vol% >40 wt%; qtz <20% or feldspathoid <10% of QAPF, feld >65% plagioclase; TAS SiO2 <52wt%  C 
781 HBBGD  Granodiorite, hornblende-biotite  U  Hornblende-biotite granodiorite  hornblende  biotite      AWEL  21-MAY-02  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase, +/-pyroxene/olivine. Hornblende C 
782 HBDI  Diorite, hornblende  U  Hornblende diorite  hornblende        AWEL  21-MAY-02  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (<50% An), +/- mica/pyroxene/olivine. 5-20% hornbende, dominant or only amphibole.  C 
783 HBGB  Hornblende-gabbro - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene <10% and hornblende 5 - 90% of plagioclase + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.  R  Hornblende-gabbro          GRBA  24-FEB-00  TMCM  22-FEB-19    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), plagioclase 10-90%, pyroxene <10%, hornblende 5-90% of Plag+Px+Hb, +/-mica/olivine  C 
784 HBPDT  Hornblende-peridotite - A type of peridotite. In the Rock Classification Scheme, it is a peridotite with olivine 40 - 90%, pyroxene <5% and hornblende 5 - 40% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.  R  Hornblende-peridotite          GRBA  24-FEB-00  TMCM  22-FEB-19    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CI M>90%; olivine 40-90%, pyroxene <5%, hornblende 5-40% of Ol+Px+Hb  C 
785 HBPXT  Hornblende-pyroxenite - A type of pyroxenite. In the Rock Classification Scheme, it is a pyroxenite with olivine <5%, pyroxene 47 - 90%, hornblende 5 - 50% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.  R  Hornblende-pyroxenite          GRBA  24-FEB-00  TMCM  22-FEB-19    Coarse-grained, av.between 2-16mm normal crystalline intrusive rock; CI M>90%; olivine <5%, pyroxene 47-90%, hornblende 5-50% of Ol+Px+Hb  C 

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