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 2146 to 2165 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
2146	OGNMY	Orthogneiss, mylonitic	U	Mylonitic orthogneiss	mylonitic	AWEL	14-FEB-01	TMCM	31-AUG-18		Not Available	C
2147	OGNOF	Orthogranofels - A type of meta-igneous rock based on textural attributes. It lacks any obvious foliation and layering and is commonly characterised by a granoblastic texture. A granofels can occur at any metamorphic grade with a range of lithologies. Note the ortho- prefix indicates a rock that is thought to have an igneous protolith, in contrast with paragranofels which has a sedimentary protolith, and granofels where the nature of the protolith is not defined. British Geological Survey Research Report RR/99/02, sections 3.3, 5.3 and fig. 1.	R	Orthogranofels		GRBA	24-FEB-00	TMCM	22-FEB-19		Granoblastic textured meta-igneous rock (grain size & mineralogy undefined), lacking any obvious foliation, qualifier essential; replaces granulite	C
2148	OGNSF	Orthogneiss, felsic	U	Felsic orthogneiss	felsic	AWEL	12-FEB-01	TMCM	31-AUG-18		Not Available	C
2149	OGNSM	Orthogneiss, mafic	U	Mafic orthogneiss	mafic	AWEL	13-FEB-01	TMCM	31-AUG-18		Not Available	C
2150	OGNSS	Orthogneiss - A type of meta-igneous rock based on textural attributes. In the Rock Classification Scheme, it is defined as a medium- to coarse-grained inhomogeneous rock, commonly with a well-developed preferred orientation of constituent minerals, and characterised by a coarse foliation or layering that is more widely spaced, irregular or discontinuous than that in a schist. Adjacent layers generally exhibit contrasting texture, grain size, and mineralogy. However, there is a continuum between schists and gneisses, with factors such as the spacing of the foliation and the degree of contrast between adjacent layers contributing to the assignment of a rock to either category. Gneiss is distinguished from schist where some layers are over 5 mm thick. Gneisses generally occur in areas of middle to upper amphibolite or granulite facies metamorphism and can encompass a wide range of lithologies. Note the ortho- prefix indicates a rock that is thought to have an igneous protolith, in contrast with paragneiss which has a sedimentary protolith, and gneiss where the nature of the protolith is not defined. British Geological Survey Research Report RR/99/02, sections 3.3, 5.3 and fig. 1.	R	Orthogneiss		GRBA	24-FEB-00	TMCM	22-FEB-19		Medium to coarse-grained (av. 0.25-16mm), crystalloblastic meta-igneous rock (protolith undefined); >5mm irregular/discontinuous layers defined by contrasting texture/grain size/mineralogy, well developed preferred mineral orientation common	C
2151	OILS	Oilshale	N	Oilshale		GRBA	24-FEB-00	TMCM	31-AUG-18		Not Available	C
2152	OILSHW	Oil shale waste - A type of artifical deposit. It consists of waste products from the mining of dark grey or black shale containing organic substances that yield liquid hydrocarbons on distillation. British Geological Survey Research Report RR/99/04, appendix 1.	R	Oil shale waste		GRBA	24-FEB-00	TMCM	13-MAR-19		Not Available	C
2153	OLBA	Olivine-basalt	U	Olivine-basalt	olivine	AWEL	20-FEB-01	TMCM	31-AUG-18		Not Available	C
2154	OLBHAW	Hawaiite, olivine-basaltic	U	Olivine-basaltic hawaiite	olivine-basaltic	DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
2155	OLCPNO	Olivine-clinopyroxene-norite - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, olivine >5% and pyroxene 5 - 90% (orthopyroxene > clinopyroxene) of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Olivine-clinopyroxene-norite		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%, olivine >5% & pyroxene 5-90% (orthopyroxene>clinopyroxene) of Plag+Ol+Px, +/-mica/amphibole	C
2156	OLCPXT	Olivine-clinopyroxenite - A type of olivine-pyroxenite. In the Rock Classification Scheme, it is an olivine-pyroxenite with olivine 5 - 40%, pyroxene 55 - 90% (<5% orthopyroxene) and hornblende <5% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.	R	Olivine-clinopyroxenite		GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CI M>90%; olivine 5-40%, clinopyroxene 55-90%, orthopyroxene <5% of Ol+Cpx+Opx, +/-mica/amphibole/feldspar	C
2157	OLGB	Olivine-gabbro - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 85% and olivine 5 - 85% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Olivine-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), plagioclase 10-90%, pyroxene 5-85%, olivine 5-85% of Plag+Px+Ol, +/- mica/amphibole	C
2158	OLGBFE	Olivine-gabbro, Fe-rich	U	Fe-rich olivine-gabbro	Fe-rich	GRBA	24-FEB-00	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% (<5% orthoproxene), olivine 5-90% of Plag+Px+Ol, >20% Fe-rich minerals, +/- amphibole	C
2159	OLGBNO	Olivine-gabbronorite - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 5 - 85%, pyroxene 5 - 85% (both clino- and orthopyroxene >5%) and olivine 5 - 85% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Olivine-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 5-85%, pyroxene 5-85% (both clino and orthopyroxene >5%), olivine 5-85%, of Plag+Px+Ol, +/-mica/amphibole	C
2160	OLGBP	Olivine-gabbro, porphyritic	U	Porphyritic olivine-gabbro	porphyritic	AWEL	26-JUL-01	TMCM	31-AUG-18		Not Available	C
2161	OLGLGB	Gabbro, olivine-glomerocrystic	U	Olivine-glomerocrystic gabbro	olivine-glomerocrystic	DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
2162	OLHAW	Olivine-hawaiite	N	Olivine-hawaiite		DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
2163	OLHBPX	Olivine-hornblende-pyroxenite - A type of pyroxenite. In the Rock Classification Scheme, it is a pyroxenite with pyroxene 30 - 90%, olivine 5 - 40% and hornblende 5 - 47% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.	R	Olivine-hornblende-pyroxenite		GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CI M>90%; pyroxene 30-90%, olivine 5-40%, hornblende 5-47% of Px+Ol+Hb, +/- mica/feldspar	C
2164	OLHBT	Olivine-hornblendite - A type of hornblendite. In the Rock Classification Scheme, it is a hornblendite with pyroxene <5%, olivine 5 - 40% and hornblende 55 - 90% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.	R	Olivine-hornblendite		GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CI M>90%; pyroxene <5%, olivine 5-40%, hornblende 55-90% of Px+Ol+Hb, +/- mica/feldspar	C
2165	OLMELI	Olivine-melilitite - A type of ultramafic-melilitic-rock. Melilitite is the general name for fine-grained melilitic rocks, and they are classified according to their melilite - olivine - clinopyroxene content. British Geological Survey Research Report RR/99/06, section 6.2 and fig. 28b.	R	Olivine-melilitite		GRBA	08-MAY-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm exotic crystalline extrusive rock; melilite 10-90%, olivine 10-90%, clinopyroxene <80% of Mel+Ol+Cpx	C

Displaying rows 2146 to 2165 of 3025