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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
686 GBRCNT  Gabbroic-rock, contaminated  U  Contaminated gabbroic-rock  contaminated        AWEL  07-OCT-03  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feldspar >65% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains minerals/rocks not part of the normal chemistry/mineralogy.  C 
687 GBRH  Gabbroic-rock, hornfelsed  U  Hornfelsed gabbroic-rock  hornfelsed        AWEL  23-JAN-02  TMCM  31-AUG-18    Hard granoblastic rock, grains 0.032-2mm recrystallised by contact metamorphism, no parting planes, pre-existing features seen as lithological heterogeneities. Protolith gabbroic-rock quartz <20% or felspathoids <10% of QAPF, feldspar >65% plag (>50% An).  C 
688 GBRMG  Gabbroic-rock, magnetic  U  Magnetic gabbroic-rock  magnetic        AWEL  26-JUL-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feld >65% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains 5-20% of magnetic mineral(s) such as magnetite.  C 
689 GBS  Gabbro (s.s.) - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 90% (<5% orthopyroxene) and olivine < 5% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.  R  Gabbro (s.s.)          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%, pyroxenes 5-90% (<5% orthopyroxene), olivine <5% of Plag+Px+O, +/- mica/amphibole  C 
690 GBSH  Gabbro, sheared  U  Sheared gabbro  sheared        AWEL  23-JAN-02  TMCM  31-AUG-18    Coarse-grained, 2-16mm normal crystalline intrusive rock; qtz <5% of QAPF, feldspar >90% plag (>50% An) +/-mica/Px/amph/olivine. Relative movement of contiguous parts parallel to their plane of contact. May cause cataclasis, granulation, mylonitisation.  C 
691 GBXEN  Gabbro, xenolithic  U  Xenolithic gabbro  xenolithic        AWEL  26-FEB-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagio (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains frags of earlier solidified host/other rock in the host, size & composition undefined.  C 
692 GD  Granodiorite - A type of granitic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 4 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12.  R  Granodiorite          GRBA  24-FEB-00  TMCM  22-FEB-19    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole  C 
693 GDBI  Granodiorite, biotite  U  Biotite granodiorite  biotite        AWEL  29-JAN-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/-amphibole. 5-20% biotite.  C 
694 GDFO  Granodiorite, foliated  U  Foliated granodiorite  foliated        GRBA  24-FEB-00  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock, preferred planar orientation of inequidiamensional minerals; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole  C 
695 GDGNS  Granodiorite, gneissose  U  Gneissose granodiorite  gneissose        AWEL  16-MAR-01  TMCM  31-AUG-18    Medium-coarse grained av. 0.25-16mm crystalloblastic metamorphic rock, >5mm irregular layers of contrasting grain size/mineralogy, preferred mineral orientation common. Granodiorite protolith; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica.  C 
696 GDHB  Granodiorite, hornblende  U  Hornblende granodiorite  hornblende        AWEL  20-FEB-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica. 5-20% hornblende.  C 
697 GDHP  Granodiorite, k-feldspar-megacrystic-hornblende  U  K-feldspar-megacrystic-hornblende granodiorite  k-feldspar  megacrystic  hornblende    AWEL  23-MAY-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/pyroxene/olivine. K-feldspar16mm.  C 
698 GDHY  Granodiorite, hyperstene  U  Hypersthene granodiorite  hypersthene        AWEL  23-JAN-02  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole. 5-20% hypersthene.  C 
699 GDL  Leucogranodiorite  N  Leucogranodiorite          AWEL  20-FEB-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; lighter than average M<5%, quartz 20-60% of QAPF, feldspar 65-90% plagioclase, +/- mica/pyroxene/amphibole/olivine.  C 
700 GDM  Melagranodiorite  N  Melagranodiorite          AWEL  20-FEB-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; darker than average, M >25%, quartz 20-60% of QAPF, feldspar 65-90% plagioclase, +/- mica/pyroxene/amphibole/olivine.  C 
701 GDP  Granodiorite, porphyritic  U  Porphyritic granodiorite  porphyritic        AWEL  21-FEB-01  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole. Contains undefined phenocrysts, larger crystals in finer matrix.  C 
702 GDTN  Granodiorite, tonalitic  U  Tonalitic granodiorite  tonalitic        AWEL  07-OCT-03  TMCM  31-AUG-18    Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase, dominantly at the more calcic end of the series +/- mica/amphibole.  C 
703 GGNR  Granitic-rock, gneissose  U  Gneissose granitic-rock  gneissose        AWEL  21-MAY-02  TMCM  31-AUG-18    Medium-coarse grained av. 0.25-16mm crystalloblastic metamorphic rock, >5mm irregular layers of contrasting grain size/mineralogy, preferred mineral orientation common. Granitic-rock protolith; qtz 20-60%, feld 40-80% of QAPF, feld, +/- mica/amphib.  C 
704 GHSCH  Schist, garnet-hornblende  U  Garnet-hornblende schist  garnet  hornblende      AWEL  11-JUN-02  TMCM  31-AUG-18    Medium-grained (av. 0.25-2mm) strongly foliated metamorphic rock; (protolith undefined) splits into <5mm slabs/flakes defined by well-developed planar orientation of platy/prismatic minerals. Hornblende>garnet both 5-20%.  C 
705 GLCL  Clay, glauconitic  U  Glauconitic clay  glauconitic        AWEL  10-JUN-02  TMCM  31-AUG-18    Siliciclastic argillaceous sediment, particles >50% or predominantly clay-grade, <0.004mm. 5-20% glauconite microcrystalline in grains 0.032-2mm, green. Marine origin. Composition of clay not defined.  C 

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