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DIC_ROCK_ALL (3677 rows)
Dictionary table based on the entire version 3 of the BGS Rock Classification Scheme and is populated directly from the 3 supplying tables (BGS.ROCK_NAME_V3, BGS.ROCK_COMPOSITE and BGS.DIC_ROCK_DUMMY). It contains both the base rock names and addditional codes required for specific application, eg. composite names for use on digital geological maps. It is formally approved as the official source of ALL database codes to be used in BGS corporate databases and MUST be followed.

Displaying rows 921 to 940 of 3677

Row	CODE	SOURCE_CODE	DESCRIPTION	TRANSLATION	STATUS	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	RCS_STATUS
921	GNSGA	RN	Granite, gneissose-augen	Gneissose-augen granite	C	AWEL	21-MAY-02	TMCM	31-AUG-18		U
922	GNSH	RN	Granite, sheared	Sheared granite	C	AWEL	23-JAN-02	TMCM	31-AUG-18		U
923	GNSKA	RN	Gneiss, k-feldspar-augen	K-feldspar-augen gneiss	C	AWEL	05-MAR-01	TMCM	31-AUG-18		U
924	GNSKP	RN	Gneiss, microcline-plagioclase	Microcline-plagioclase gneiss	C	AWEL	11-JUN-02	TMCM	31-AUG-18		U
925	GNSMF	RN	Gneiss, mafic	Mafic gneiss	C	AWEL	26-FEB-01	TMCM	31-AUG-18		U
926	GNSMI	RN	Gneiss, micaceous	Micaceous gneiss	C	AWEL	26-FEB-01	TMCM	31-AUG-18		U
927	GNSN	RN	Gneiss, nebulitic	Nebulitic gneiss	C	AWEL	07-MAR-01	TMCM	31-AUG-18		U
928	GNSPL	RN	Gneiss, plagioclase	Plagioclase gneiss	C	AWEL	13-MAR-01	TMCM	31-AUG-18		U
929	GNSPMY	RN	Gneiss, protomylonitic	Protomylonitic gneiss	C	AWEL	15-FEB-01	TMCM	31-AUG-18		U
930	GNSPXB	RN	Gneiss, pyroxene-bearing	Pyroxene-bearing gneiss	C	AWEL	05-MAR-01	TMCM	31-AUG-18		U
931	GNSQFC	RN	Gneiss, quartzofeldspathic	Quartzofeldspathic gneiss	C	DJLO	01-DEC-06	TMCM	31-AUG-18	I	U
932	GNSRM	RN	Gneiss, re-metamorphosed	Re-metamorphosed gneiss	C	AWEL	22-MAR-04	TMCM	31-AUG-18		U
933	GNSS	RN	Gneiss - A type of metamorphic rock with unknown protolith 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 that orthogneiss indicates a rock that is thought to have an igneous protolith, and paragneiss indicates a rock that is thought to have a sedimentary protolith. British Geological Survey Research Report RR/99/02, sections 3.3, 6.1 and fig. 1.	Gneiss	C	GRBA	24-FEB-00	TMCM	22-FEB-19		R
934	GNSSGN	RC	Gneiss and granite	Gneiss and Granite	C	RCB	16-APR-10	TMCM	24-AUG-18	I	?
935	GNXEN	RN	Granite, xenolithic	Xenolithic granite	C	AWEL	26-FEB-01	TMCM	31-AUG-18		U
936	GNXPS	RC	Granite with psammite xenoliths	Granite with psammite xenoliths	C	TMCM	17-AUG-16	TMCM	24-AUG-18	I	?
937	GNXSP	RC	Granite with semipelite xenoliths	Granite with semipelite xenoliths	C	TMCM	17-AUG-16	TMCM	24-AUG-18	I	?
938	GOSSAN	RN	Gossan - A type of duricrust. It is a near-surface, iron oxide-rich zone overlying a sulphide-bearing ore deposit, caused by the oxidation and leaching of sulphides. British Geological Survey Research Report RR/99/04, appendix 2.	Gossan	C	GRBA	24-FEB-00	TMCM	13-MAR-19		R
939	GPMD	RC	Porphyritic granodiorite and microdiorite	Porphritic granodiorite and microdiorite	C	DJLO	19-MAY-06	TMCM	24-AUG-18	I	?
940	GPMG	RC	Granophyric granite and granophyric microgranite	Granophyric granite and granophyric microgranite	C	DJLO	19-MAY-06	TMCM	24-AUG-18	I	?

Displaying rows 921 to 940 of 3677