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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
146 ASHFIL  Ash fill (industrial) - A type of artificial deposit. It is a general term for powdery residue left after combustion of any substance. British Geological Survey Research Report RR/99/04, appendix 1. See also: ash.  R  Ash fill (industrial)          GRBA  24-FEB-00  TMCM  13-MAR-19    Not Available  C 
147 ASHL  Ash, lithic  U  Lithic ash  lithic        AWEL  17-DEC-04  TMCM  31-AUG-18    Unlithified clastic material >10% debris formed by volcanic processes; >75vol% pyroclastic fragments, >75% ash <2mm, rock fragments >33%, pumice/glass <50%, crystals/crystal fragments <50%; a pyroclastic sediment  C 
148 ASHV  Ash, vitric  U  Vitric ash  vitric        AWEL  17-DEC-04  TMCM  31-AUG-18    Unlithified clastic material >10vol% debris formed by volcanic processes, >75vol% pyroclastic fragments, >75% ash, <2mm: >33% pumice/glass, <50%crystals/crystal fragments, <50% rock fragments of P,G+C,Cf+Rf  C 
149 AUDI  Diorite, augite  U  Augite diorite  augite        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/amphibole/olivine. 5-20% augite.  C 
150 B  Boulders [Unlithified Deposits Coding Scheme] - A type of natural superficial deposit. The Unlithified Deposits Coding Scheme was developed as a way of coding unlithified deposits (also commonly referred to as superficial deposits, unconsolidated deposits, or engineering soils) that is consistent with civil engineering industry usage (BS5930).  R  Boulders [UDCS]          AWEL  09-JAN-02  TMCM  13-MAR-19    Not Available  C 
151 BA  Basalt - A type of basaltic-rock. In the Rock Classification Scheme, this name is used for a fine-grained crystalline igneous rock when the modal mineralogy is available, and the mineral mode plots in fields 9 and 10 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Andesite and basalt may be separated chemically using SiO2 content: if wt% SiO2 is less than 52% the rock is basalt. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17a, 19.  R  Basalt          GRBA  24-FEB-00  TMCM  22-FEB-19    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, Na2O+K2O <5wt%  C 
152 BAALK  Basalt, alkali - A type of basalt (TAS). In the Rock Classification Scheme, the root name basalt (TAS) may be divided into alkali basalt and subalkali basalt according to the state of silica saturation. If the analysis contains normative nepheline the rock may be called an alkali basalt. British Geological Survey Research Report RR/99/06, section 5.2.  U  Alkali basalt  alkali        AWEL  22-JUL-02  TMCM  22-FEB-19    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, (97% have <48.5), Na2O+K2O 1.4-5wt%, (97%>2.2). CIPW norm with nepheline.  C 
153 BAANDT  Basaltic-andesite - A type of andesitic-rock, classified using the total alkali silica (TAS) classification. The TAS classification may be used if the mineral mode of a normal fine-grained crystalline rock cannot be determined due either to the presence of glass or to the fine-grained nature of the rock. The definition of basaltic-andesite is as shown in British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.  R  Basaltic-andesite          GRBA  05-MAY-00  TMCM  22-FEB-19    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock: TAS SiO2 52-57wt%, Na2O+K2O <5.9wt%  C 
154 BAAPH  Basaltic-andesite, porphyritic  U  Porphyritic basaltic andesite  porphyritic        AWEL  07-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock: TAS SiO2 52-57wt%, Na2O+K2O <5.9wt%. Phenocrysts, larger crystals in finer matrix, size, amount & composition undefined.  C 
155 BACOMA  Basalt, clinopyroxene-olivine-macrophyric  U  Clinopyroxene-olivine-macrophyric basalt  clinopyroxene  olivine  macrophyric    AWEL  15-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox2mm crystals in finer matrix, both 5-20%.  C 
156 BACOMI  Basalt, clinopyroxene-olivine-microphyric  U  Clinopyroxene-olivine-microphyric basalt  clinopyroxene  olivine  microphyric    AWEL  15-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Cpx C 
157 BACOP  Basalt, clinopyroxene-olivine-phyric  U  Clinopyroxene-olivine-phyric basalt  clinopyroxene-olivine-phyric        AWEL  15-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feldspar >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox C 
158 BACOPA  Basalt, clinopyroxene-olivine-plagioclase-macrophyric  U  Clinopyroxene-olivine-plagioclase-macrophyric basalt  clinopyroxene  olivine  plagioclase  macrophyric  AWEL  15-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or foid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Cpx2mm crystals in finer matrix, all 5-20%.  C 
159 BACOPP  Basalt, clinopyroxene-olivine-plagioclase-phyric  U  Clinopyroxene-olivine-plagioclase-phyric basalt  clinopyroxene  olivine  plagioclase  phyric  AWEL  15-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feldspar >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox C 
160 BAFO  Basalt, foliated  U  Foliated basalt  foliated        AWEL  17-JAN-02  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%.<5mm planar texture, preferred orientation of platy/prismatic minerals.  C 
161 BAGL  Basalt, glassy  U  Glassy basalt  glassy        AWEL  15-FEB-01  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, Na2O+K2O <5wt%.Contains 50-100% glass.  C 
162 BALAVA  Lava, basalt  U  Basalt lava  basalt        AWEL  29-MAY-02  TMCM  31-AUG-18    Material extruded in molten state and solidified; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 <52wt%  C 
163 BALLST  Ballast - A type of artificial deposit. It is coarse stone mixed with sand etc., used to form the bed of a railway or the substratum of a road. British Geological Survey Research Report RR/99/04, appendix 1.  R  Ballast          GRBA  24-FEB-00  TMCM  13-MAR-19    Not Available  C 
164 BALTF  Lapilli-tuff, basaltic  U  Basaltic lapilli-tuff  basaltic        AWEL  12-JUN-03  TMCM  31-AUG-18    Lithified poorly sorted clastic material >10% debris formed by volcanic processes, >75vol% pyroclastic fragments, 25-75% lapilli 2-64mm; a pyroclastic rock, basaltic; CI >35 vol% >40 wt%; qtz <20% or felds <10% of QAPF, felds >65% plag; TAS SiO2 <52wt%.  C 
165 BALVPW  Basalt, lava-pillowed  U  Pillowed basalt lava  lava  pillowed      AWEL  07-OCT-03  TMCM  31-AUG-18    Fine-grained, av. <0.25mm normal crystalline extrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt% Material extruded in molten state & solidified into pillow-shaped masses.  C 

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