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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 681 to 700 of 3677

Row	CODE	SOURCE_CODE	DESCRIPTION	TRANSLATION	STATUS	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	RCS_STATUS
681	DRFTU	RN	Superficial deposit (natural and/or artificial) - In the Rock Classification Scheme, this high level class includes artificially modified ground, and natural superficial deposits. British Geological Survey Research Report RR/99/04.	Superficial deposit (natural and/or artificial)	C	DJLO	05-OCT-06	TMCM	13-MAR-19	I	A
682	DRPMA	RN	Doleritic-rock, plagioclase-macrophyric	Plagioclase-macrophyric doleritic-rock	C	AWEL	15-OCT-03	TMCM	24-AUG-18		N
683	DRPMI	RN	Doleritic-rock, plagioclase-microphyric	Plagioclase-microphyric doleritic-rock	C	AWEL	15-OCT-03	TMCM	24-AUG-18		N
684	DRPP	RN	Doleritic-rock, plagioclase-phyric	Plagioclase-phyric doleritic-rock	C	AWEL	15-OCT-03	TMCM	24-AUG-18		N
685	DSDST	RN	Sandstone, dolomitic	Dolomitic sandstone	C	DJLO	08-NOV-05	TMCM	31-AUG-18	I	U
686	DSLST	RN	Siltstone, dolomitic	Dolomitic siltstone	C	AWEL	16-AUG-04	TMCM	31-AUG-18	I	U
687	DSMDST	RN	Silicate-mudstone, dolomitic	Dolomitic silicate-mudstone	C	AWEL	11-JUN-02	TMCM	31-AUG-18		U
688	DSSA	RN	Dolomite-sand - A type of dolomite-sediment. In the Rock Classification Scheme, it is one in which clasts are predominantly 32 µm to 2 mm, with less than 75% of the clasts smaller than 32 µm and less than 25% larger than 2 mm. The grain size classes are defined in the same way as the siliciclastic sediments. British Geological Survey Research Report RR/99/03, section 3.2, table 6 and fig. 7. See also: silicate-sand.	Dolomite-sand	C	AWEL	31-MAY-02	TMCM	08-MAR-19		R
689	DSSDST	RN	Silicate-sandstone, dolomitic	Dolomitic silicate-sandstone	C	AWEL	11-JUN-02	TMCM	31-AUG-18		U
690	DSSLTS	RN	Silicate-siltstone, dolomitic	Dolomitic silicate-siltstone	C	AWEL	10-JUN-02	TMCM	31-AUG-18		U
691	DUN	RN	Dunite - A type of peridotite. In the Rock Classification Scheme, it is a peridotite with olivine >90%, pyroxene <10% and hornblende <10% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.	Dunite	C	GRBA	24-FEB-00	TMCM	22-FEB-19		R
692	DUNC	RN	Dunite, chromite	Chromite dunite	C	AWEL	17-DEC-04	TMCM	31-AUG-18	I	U
693	DUNCB	RN	Dunite, chromite-bearing	Chromite-bearing dunite	C	AWEL	17-DEC-04	TMCM	31-AUG-18	I	U
694	DURAIN	RN	Durain - A type of bituminous-coal, classified according to lithotype. It consists of dark grey to black bands with a dull to slightly greasy lustre. The material is relatively hard compared to other lithotypes, and tends to break into large blocky fragments. Durain may be confused with impure coal which is also dull and hard, but it can be distinguished by its lower density. British Geological Survey Research Report RR/99/03, section 6.1 and fig. 10.	Durain	C	GRBA	24-FEB-00	TMCM	08-MAR-19		R
695	DURI	RN	Duricrust - A type of residual deposit. It is a general term for a hard crust on the surface of, or layer in, the upper horizons of a soil in a semiarid climate. It is an indurated product of surface and near-surface processes formed by cementation or replacement of bedrock, weathering deposits, unconsolidated sediments, soil or other materials produced by low-temperature physiochemical processes. British Geological Survey Research Report RR/99/03, section 13.6; RR/99/04, appendix 2.	Duricrust	C	GRBA	24-FEB-00	TMCM	13-MAR-19		R
696	ECLOG	RN	Eclogite - A type of metamorphic rock with unknown protolith based on modal composition. In the Rock Classification Scheme, it is defined as a rock composed of more than 70% garnet and jadeitic clinopyroxene (omphacite). Eclogites do not contain plagioclase. They may contain other anhydrous minerals such as quartz, kyanite, orthopyroxene and rutile, together forming no more than 30% of the rock. Eclogites result from metamorphism of basaltic or gabbroic igneous rocks under very low P.H₂0 producing anhydrous mineral assemblages. They define a unique eclogite facies metamorphism, typically reflecting very high pressures although their local occurrence within amphibolite facies rocks suggests they may be formed over a significant range of pressure. British Geological Survey Research Report RR/99/02, section 6.2.	Eclogite	C	GRBA	24-FEB-00	TMCM	22-FEB-19		R
697	ECR	RN	Exotic crystalline igneous rock - These are the chemically and/or mineralogically exotic crystalline igneous rocks. In the Rock Classification Scheme, this class includes carbonatite, melilitic rock, kalsilitic rock, kimberlite, lamproite, leucitic rock, and lamprophyre. Rocks in these groups have sufficiently unusual mineral and chemical compositions that they are not classified using the modal (QAPF and ultramafic diagrams) or chemical (e.g. TAS) methods by which normal crystalline igneous rocks are classified. Although they comprise only a tiny proportion of all crystalline igneous rocks, the unusual characteristics and distinctive field settings of the exotic igneous rocks means they have attracted a large amount of attention from geologists. British Geological Survey Research Report RR/99/06, section 1.3 and fig. 1.	Exotic crystalline igneous rock	C	AWEL	08-JUN-01	TMCM	22-FEB-19		A
698	EFLUE	RN	Effluent - A type of artifical deposit. It consists of waste liquid flowing from a sewage tank or industrial process etc. British Geological Survey Research Report RR/99/04, appendix 1.	Effluent	C	GRBA	24-FEB-00	TMCM	13-MAR-19		R
699	ETPB	RC	Eutaxitic-crystal tuff and pyroclastic-breccia	Eutaxitic-crystal tuff and pyroclastic-breccia	C	TMCM	18-JUN-12	TMCM	24-AUG-18	I	?
700	FACG	RC	Feldspathic arenite and conglomerate	Feldspathic arenite and conglomerate	C	DJLO	18-MAY-06	TMCM	24-AUG-18	I	?

Displaying rows 681 to 700 of 3677