Vocabularies — view dictionary terms
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 661 to 680 of 3025
| Row | CODE | DESCRIPTION | RCS_STATUS | TRANSLATION | Q1 | Q2 | Q3 | Q4 | USER_ENTERED | DATE_ENTERED | USER_UPDATED | DATE_UPDATED | TRANSFER | DEFINITION_BKING | STATUS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 661 | FTUFT | Tuffite, felsic | U | Felsic tuffite | felsic | DJLO | 18-MAY-06 | TMCM | 31-AUG-18 | I | Clastic material >10% debris formed by volcanic processes; pyroclastic fragments 25-75vol%; chemically normal quartz <60% or feldspathoids <10% of QAPF, remainder dominantly feldspar | C | |||
| 662 | FUSAIN | Fusain - A type of bituminous-coal, classified according to lithotype. It is a black, soft, friable coal which closely resembles charcoal. It easily disintegrates into a black, fibrous powder. A hard form of fusain that has been impregnated with mineral matter can be found in some coals. British Geological Survey Research Report RR/99/03, section 6.1 and fig. 10. | R | Fusain | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | Bituminous coal lithotype. Soft, black, friable, resembles charcoal. Breaks into fibrous powder. Hard if impregnated with another mineral. | C | |||||
| 663 | FWACKE | Feldspathic-wacke - A type of wacke. In the Rock Classification Scheme, it is defined as shown in British Geological Survey Research Report RR/99/03, section 2.2 and figs. 3, 4. | R | Feldspathic-wacke | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | Siliciclastic arenaceous sedimentary rock 15 to 75% matrix (particles<0.032mm). Clasts quartz <95%, feldspar >5% & rock fragments <50% of quartz+feldspar+rock fragments. Diamictite, greywacke. | C | |||||
| 664 | G1KMB | Group-1-kimberlite - A type of kimberlite. Group-1-kimberlite corresponds to archetypal rocks from Kimberley, South Africa that formerly were termed basaltic kimberlites. These are volatile-rich (dominantly CO2), potassic, ultrabasic rocks which commonly exhibit a distinctive inequigranular texture resulting from the presence of macrocrysts (and in some instances megacrysts) set in a fine-grained matrix. British Geological Survey Research Report RR/99/06, section 6.4. | R | Group-1-kimberlite | GRBA | 24-FEB-00 | TMCM | 22-FEB-19 | Volatile rich (CO2) potassic exotic intrusive rock; macro/megacrysts of +/- ol/ilmen/pyrope/enstat/chrom in fine-grained av.<0.25mm matrix of montecell/phlog/perovsk/spin/epidote/serp/sulphides/rut, +/- 2nd ol/cal/mag/serp, no primary diop; basaltic kim | C | |||||
| 665 | G2KMB | Group-2-kimberlite - A type of kimberlite. Group-2-kimberlite corresponds to micaceous or lamprophyric kimberlites. They are characterised by the presence of macrocrysts, phenocrysts and groundmass micas, which vary from phlogopite to tetraferriphlogopite. British Geological Survey Research Report RR/99/06, section 6.4. | R | Group-2-kimberlite | GRBA | 24-FEB-00 | TMCM | 22-FEB-19 | Volatile-rich (CO2) K exotic intrusive rock; macro-/phenocrysts/matrix of phlog/tetrafephlog/ol, in matrix of +/-2nd diop/spin/chrom/magnet/perovs/apat/REE phos/Ti-ates/rut/ilmen/cal/dol/ancyl/norseth/serp, rare sani/richter; 2nd bar mica/lamprophyric kim | C | |||||
| 666 | GARDW | Garden waste - A type of artifical deposit. It consists of predominantly organic waste including woody materials, grass and soil. British Geological Survey Research Report RR/99/04, appendix 1. | R | Garden waste | GRBA | 24-FEB-00 | TMCM | 13-MAR-19 | Not Available | C | |||||
| 667 | GAYLUS | Gaylussite - A type of Na carbonate sedimentary rock. Gaylussite (Na2CO3.CaCO3.5H2O) is characterised by monoclinic flattened wedge-shaped crystals. British Geological Survey Research Report RR/99/03, section 3.3. | A | Gaylussite | GRBA | 24-FEB-00 | TMCM | 08-MAR-19 | Sedimentary rock, primary sodium carbonate precipitate. Na2CO3.CaCO3.5H2O crystals monoclinic, flattened, wedge-shaped. Crystal size not defined, no unlithified equivalent. | C | |||||
| 668 | GB | Gabbro - A type of gabbroic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 10 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Diorite, gabbro and anorthosite are separated according to the average composition of their plagioclase and the proportion of mafic minerals (M): if M is greater than 10% and An (the anorthite content of plagioclase) is greater than 50% the rock is gabbro. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12. | A | 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) +/- mica/pyroxene/amphibole/olivine | C | |||||
| 669 | GBAN | Analcime-gabbro - A foid-gabbro in which the dominant feldspathoid mineral is analcime. British Geological Survey Research Report RR/99/06, section 5.1 and fig. 9. | R | Analcime-gabbro | AWEL | 19-MAR-04 | TMCM | 22-FEB-19 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; felspathoid 10-60% of QAPF, feldspar >90% plagioclase (>50% An), analcime dominant/only felspathoid, +/- mica/pyroxene/amphibole/olivine; formerly teschenite, a foid-gabbro | C | |||||
| 670 | GBANH | Analcime-gabbro, hornblende | U | Hornblende analcime-gabbro | hornblende | AWEL | 19-MAR-04 | TMCM | 31-AUG-18 | Coarse-grained, av. 2-16mm normal crystalline intrusive rock; felspathoid 10-60% of QAPF, feldspar >90% plagioclase (>50% An), analcime dominant/only felspathoid, +/- mica/pyroxene/olivine, hornblende 5-20%; formerly teschenite, a foid-gabbro. | C | ||||
| 671 | GBBBY | Gabbro, biotite-bytownite | U | Biotite-bytownite gabbro | biotite | bytownite | AWEL | 26-FEB-01 | 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. Biotite| C |
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| 672 | GBBI | Gabbro, biotite | U | Biotite gabbro | biotite | AWEL | 17-DEC-04 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), biotite 5-20%, +/- pyroxene/amphibole/olivine | C | ||||
| 673 | GBBR | Gabbro, biotite-rich | U | Biotite-rich gabbro | biotite-rich | AWEL | 17-DEC-04 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), biotite >20%, +/- pyroxene/amphibole/olivine | C | ||||
| 674 | GBBY | Gabbro, bytownite | U | Bytownite gabbro | bytownite | AWEL | 26-FEB-01 | 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% bytownite. | C | ||||
| 675 | GBFLX | Gabbro, fluxioned | U | Fluxioned gabbro | fluxioned | AWEL | 26-FEB-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; qtz <5% of QAPF, feld >90% plag (>50% An) +/- mica/pyroxene/amphibole/olivine. Flowage structure, flow lines, parallel orientation of phenocrysts, banding, elongation of vesicles. | C | ||||
| 676 | GBFO | Gabbro, foliated | U | Foliated gabbro | foliated | AWEL | 07-MAR-01 | TMCM | 31-AUG-18 | Protlith coarse-grained meta-igneous rock, av. 2-16mm normal crystalline intrusive rock; qtz <5% of QAPF, feldspar >90% plag (>50% An) +/- mica/pyrox/amphibole/olivine. <5mm planar texture/structure from preferred orientation of platy/prismatic minerals. | C | ||||
| 677 | GBGN | Gabbro, gneissose | U | Gneissose gabbro | gneissose | AWEL | 23-JAN-02 | TMCM | 31-AUG-18 | Medium-coarse grained av 0.25-16mm, >5mm irregular/discontin layers with contrasting texture/grainsize/mineralogy, preferred mineral orientation. Microgabbro protolith; quartz <5% of QAPF, feldspar >90% plag (>50% An) +/- mica/pyroxene/amphibole/olivine. | C | ||||
| 678 | GBHB | Gabbro, hypersthene-bearing | U | Hypersthene-bearing gabbro | hypersthene-bearing | AWEL | 23-JAN-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. Hypersthene present but <5%. | C | ||||
| 679 | GBHYP | Orthopyroxene-gabbro, hypersthene | U | Hypersthene orthopyroxene-gabbro | hypersthene | AWEL | 26-FEB-01 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), plagioclase 10-90% , pyroxene 5-85% (<45% orthopyroxene), olivine <5%, of Plag+Px+Ol. Hypersthene dominant or only orthopyroxene | C | ||||
| 680 | GBIB | Gabbro, biotite-bearing | U | Biotite-bearing gabbro | biotite-bearing | AWEL | 17-DEC-04 | TMCM | 31-AUG-18 | Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), biotite <5%, +/- mica/pyroxene/amphibole/olivine | C |
Displaying rows 661 to 680 of 3025