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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.
Displaying rows 706 to 725 of 3025
| Row | CODE | DESCRIPTION | RCS_STATUS | TRANSLATION | Q1 | Q2 | Q3 | Q4 | USER_ENTERED | DATE_ENTERED | USER_UPDATED | DATE_UPDATED | TRANSFER | DEFINITION_BKING | STATUS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 706 | GLIG | Glassy-igneous-rock - A type of fine-grained normal crystalline rock. British Geological Survey Research Report RR/99/06. | A | Glassy-igneous-rock | AWEL | 21-MAY-02 | TMCM | 22-FEB-19 | Material >50% fresh or altered (hydrated/devitrified) glass (grain size >0.004mm), normal/exotic extrusive/intrusive crystalline rock; composition not inferred | C | |||||
| 707 | GLMDST | Mudstone, glauconitic | U | Glauconitic mudstone | glauconitic | AWEL | 10-JUN-02 | TMCM | 31-AUG-18 | Siliciclastic sedimentary rock with particles >50% from pre-existing siliceous rocks. Particles >50% or predominantly mud-grade, <0.032mm. 5-20% glauconite, microcrystalline, in grains 0.032-2mm green. Marine origin. Compostion not defined. | C | ||||
| 708 | GLSCH | Schist, glaucophane | U | Glaucophane schist | glaucophane | AWEL | 10-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.Glaucophane 5-20%. | C | ||||
| 709 | GLSST | Sandstone, glauconitic | U | Glauconitic sandstone | glauconitic | AWEL | 31-MAY-02 | TMCM | 31-AUG-18 | Siliciclastic sedimentary rock, >50vol% clasts from pre-existing siliceous rocks. Grains >50% or predominantly sand-grade, 0.032 to 2mm. 5 to 20% glauconite microcrystalline in grains 0.032-2mm, green. Marine in origin. Composition not defined. | C | ||||
| 710 | GMGN | Microgranite, granophyric | U | Granophyric microgranite | granophyric | AWEL | 10-JUN-02 | TMCM | 31-AUG-18 | Medium-grained, av. between 0.25-2mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar, +/- mica/amphibole. Texture due to micrographic intergrowth of quartz & alkali feldspar. | C | ||||
| 711 | GN | Granite - A type of granitic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 3 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Granite may be subdivided into syenogranite and monzogranite. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12. | R | Granite | GRBA | 24-FEB-00 | TMCM | 22-FEB-19 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- mica/amphibole | C | |||||
| 712 | GNAK | Granite, alkali | U | Alkali granite | alkali | AWEL | 17-DEC-04 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar; alkali amphibole/pyroxene essential, +/-mica | C | ||||
| 713 | GNB | Granite, biotite | U | Biotite granite | biotite | AWEL | 14-FEB-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- amphibole. 5-20% biotite. | C | ||||
| 714 | GNBF | Granite, foliated-biotite | U | Foliated-biotite granite | foliated | 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 35-90% alkali feldspar +/- mica/amphibole.<5mm planar texture/structure from preferred orientation of platy/prismatic minerals; 5-20% biotite. | C | |||
| 715 | GNBP | Granite, biotite-phyric | U | Biotite-phyric granite | biotite-phyric | AWEL | 14-FEB-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/-amphibole. 5-20vol% biotite as phenocrysts, larger crystals in finer matrix. | C | ||||
| 716 | GNCH | Granite, charnockitic | U | Charnockitic granite | charnockitic | AWEL | 17-DEC-04 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock with perthitic feldspar, magnetite & pyroxene (usually Opx, commonly hypersthene or altered fayalite); quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar; formerly charnockite | C | ||||
| 717 | GNEHB | Gneiss, hornblende-biotite | U | Hornblende-biotite gneiss | hornblende | biotite | AWEL | 12-FEB-01 | TMCM | 31-AUG-18 | Med-coarse-grained (av. 0.25-16mm) crystalloblastic metamorphic rock (protolith undefined),>5mm irregular/discontinuous layers defined by contrasting text/grainsize/mineralogy, well developed preferred min orientation common. Biotite>hornblende both 5-20% | C | |||
| 718 | GNFO | Granite, foliated | U | Foliated granite | foliated | AWEL | 29-JAN-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- mica/amphibole. <5mm planar texture/structure from preferred orientation of platy/prismatic minerals; | C | ||||
| 719 | GNGH | Granite, granophyric-hornfelsed | U | Granophyric-hornfelsed granite | granophyric | hornfelsed | AWEL | 16-MAR-04 | TMCM | 31-AUG-18 | Hard granoblastic rock, grains 0.032-2mm recrystallised by contact metamorph, no parting planes, pre-existing features seen as lithological heterogeneities. Granite protolith with texture due to micrographic intergrowth of quartz & alkali feldspar. | C | |||
| 720 | GNGNS | Granite, gneissose | U | Gneissose granite | gneissose | AWEL | 16-MAR-01 | TMCM | 31-AUG-18 | Coarse-grained (av. 2-16mm), normal crystalline, intrusive meta-granite protolith, >5mm irregular/discontinuous layers of contrasting grain size/mineralogy with preferred mineral orientation; qtz 20-60% of QAPF, feld 35-90% alkali feld +/- mica/amphibole | C | ||||
| 721 | GNGP | Granite, granophyric | U | Granophyric granite | granophyric | GRBA | 24-FEB-00 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline, (texture micrographic intergrowth of quartz and alkali feldspar) intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- mica/amphibole | C | ||||
| 722 | GNGPP | Granite, granophyric-porphyritic | U | Granophyric-porphyritic granite | granophyric | porphyritic | AWEL | 13-MAR-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline, intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- mica/amphibole. Ttexture micrographic intergrowth of quartz & alkali feldspar. Phenocryst, larger crystals, type not defined. | C | |||
| 723 | GNKPG | Gneiss, microcline-porphyroblastic | U | Microcline-porphyroblastic gneiss | microcline | porphyroblastic | AWEL | 01-SEP-03 | TMCM | 31-AUG-18 | Med-coarse-grained (av. 0.25-16mm) crystalloblastic meta rock (protolith undefined) >5mm irreg/discont layers defined by contrasting text/grainsize/mineralogy, preferred min orientation common. 5-20% large metamorphic microcline crys in finer groundmass. | C | |||
| 724 | GNL | Leucogranite | N | Leucogranite | GRBA | 24-FEB-00 | 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 35-90% alkali feldspar +/- mica/amphibole | C | |||||
| 725 | GNLF | Leucogranite, foliated | U | Foliated leucogranite | foliated | AWEL | 20-FEB-01 | TMCM | 31-AUG-18 | Coarse-grained (av. 2-16mm), normal crystalline intrusive rock; <5mm planar structure from preferred orientation of platy/prismatic minerals. Granite protolith, lighter than average, M<5%; quartz 20-60% of QAPF, feldspar 35-90% alkali feld +/- mica/amph. | C |
Displaying rows 706 to 725 of 3025