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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 666 to 685 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
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
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
681	GBL	Leucogabbro	N	Leucogabbro			AWEL	11-OCT-02	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; lighter than average, more than normal felsic minerals, M<35% quartz <5% of QAPF, feldspar >90% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine.	C
682	GBM	Gabbro, migmatitic	U	Migmatitic gabbro	migmatitic		AWEL	23-FEB-01	TMCM	31-AUG-18	Megascopically composite rock (protolith partly gabbro) of two or more petrographically different layers/parts, including mesosome or palaeosome (apparent metamorphic country rock), leucosome (leucocratic, quartz/feldspar), melanosome (melanocratic)	C
683	GBNO	Gabbronorite - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 90% (>5% clino- and orthopyroxene) and olivine <5% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Gabbronorite			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% clino- and orthopyroxene), olivine <5% of Plag+Px+Ol +/- mica/amphibole	C
684	GBR	Gabbroic-rock - A type of coarse-grained normal crystalline rock. In the Rock Classification Scheme, this class includes gabbro, monzogabbro, and similar rocks. The term may be used as a field classification when an accurate mineral mode from thin section examination is not available. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 10.	A	Gabbroic-rock			GRBA	24-FEB-00	TMCM	22-FEB-19	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	C
685	GBRA	Gabbroic-rock, appinitic	U	Appinitic gabbroic-rock	appinitic		AWEL	19-MAR-04	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feldspar >65% plagi (>50% An) +/- mica/pyroxeneolivine. With coarse-grained euhedral hornblende in anhedral to poikilitic feldspar matrix.	C

Displaying rows 666 to 685 of 3025