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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 506 to 525 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
506	DISH	Diorite, sheared	U	Sheared diorite	sheared	AWEL	21-JAN-02	TMCM	31-AUG-18	Coarse-grained, 2-16mm normal crystalline intrusive rock; qtz <5% of QAPF, feld >90% plagioclase (<50% An), +/- mica/Px/amph/oliv. Relative movement of contiguous parts parallel to their plane of contact. May cause cataclasis/granulation/mylonitisation.	C
507	DLBST	Dolomite-boundstone - A type of dolostone, classified on the basis of its biogenic texture. It is a dolostone in which the original components were bound and encrusted together by the action of plants and animals in the position of growth. British Geological Survey Research Report RR/99/03, section 3.2, table 7 and fig. 7.	R	Dolomite-boundstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock with crystals >50% magnesium carbonates. Dolomite >50% of magnesium carbonate crystals. Original components bound & encrusted by action of plants/animals in growth position (reef limestone). Crystal size not defined.	C
508	DLCBT	Dolomite-carbonatite - A type of carbonatite. In the Rock Classification Scheme, this term may be used when a modal classification is possible. In a dolomite-carbonatite more than 90% of the carbonate is dolomite. British Geological Survey Research Report RR/99/06, section 6.1 and fig. 25. See also: magnesiocarbonatite.	R	Dolomite-carbonatite		GRBA	24-FEB-00	TMCM	22-FEB-19	Exotic crystalline intrusive/extrusive rock grain size undefined; >50% modal primary carbonates of calcium/magnesium/iron/manganese, carbonate >90% dolomite; magnesiocarbonatite	C
509	DLFST	Dolomite-framestone - A type of dolostone, classified on the basis of its biogenic texture. It is a type of reef rock consisting of a rigid framework of colonies, shells or skeletons. Internal cavities are filled with fine sediment. British Geological Survey Research Report RR/99/03, section 3.2, table 7 and fig. 7.	R	Dolomite-framestone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock with components >50% magnesium carbonates. Dolomite >50% of magnesium carbonate crystals. Fine, 0.032 to 0.25mm sediment fills cavities in framework of colonies of shells or skeletons.	C
510	DLGST	Dolomite-grainstone - A type of dolostone, classified on the basis of its depositional texture. It is a grain-supported dolostone with little matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.2, table 7 and fig. 7.	R	Dolomite-grainstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Grain-supported Sedimentary rock with crystals >50% magnesium carbonates. Dolomite >50% of magnesium carbonate crystals. <15% matrix, (particles <0.032mm), grain size not defined.	C
511	DLGV	Dolomite-gravel - A type of dolomite-sediment. In the Rock Classification Scheme, it is one in which over 25% of clasts are 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-gravel.	R	Dolomite-gravel		GRBA	24-FEB-00	TMCM	08-MAR-19	Grain-supported sediment with grains >50% magnesium carbonates. Dolomite >50% of magnesium carbonate grains. Grains >50% or predominantly gravel-grade, >2mm.	C
512	DLMCST	Dolomite-microstone - A type of dolostone, classified on the basis of its diagenetic texture. It is similar to dolomite-sparstone but with crystals smaller than 4 µm. Crystals are not resolvable under an optical microscope. British Geological Survey Research Report RR/99/03, section 3.2, table 8 and fig. 7.	R	Dolomite-microstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock with crystals >50% magnesium carbonate, Dolomite >50% of magnesium carbonate crystals, petrological study shows obliterative sparry ankerite, <0.004mm in inequant blocky mosaics. Crystals submicroscopic.	C
513	DLMDM	Dolostone, mudmound	N	Mudmound dolostone	mudmound	AWEL	15-APR-04	TMCM	24-AUG-18	Sedimentary rock with components >50% magnesium carbonates, >50% of magnesium carbonate is dolomite. Particles mud-grade, <0.032mm. Genetic term for large carbonate bioherms low in skeletal component.	C
514	DLMDST	Dolomite-mudstone - A type of dolostone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported dolostone composed of greater than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.2, table 7 and fig. 7.	R	Dolomite-mudstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Matrix supported Sedimentary rock with components >50% magnesium carbonate. Dolomite >50% of magnesium carbonate, components >50% or predominantly mud-grade, <0.032mm.	C
515	DLMONC	Microoncoid-dolostone - A type of dolostone composed dominantly of microoncoids. British Geological Survey Research Report RR/99/03, section 3.2, table 9 and fig. 7.	R	Microoncoid-dolostone		AWEL	16-MAY-02	TMCM	08-MAR-19	Sedimentary rock, components >50% magnesium carbonates. >50% of Mg-carbonate is dolomite. Allochem dominantly as micro-oncoids, <2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present. Component size undefined	C
516	DLMSPT	Dolomite-microsparstone - A type of dolostone, classified on the basis of its diagenetic texture. It is similar to dolomite-sparstone but with 4 - 32 µm crystal size. Crystals are resolvable under an optical microscope. British Geological Survey Research Report RR/99/03, section 3.2, table 8 and fig. 7.	R	Dolomite-microsparstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock with crystals >50% magnesium carbonate. Dolomite >50% of magesium carbonate crystals. Petrological study shows obliterative sparry dolomite 0.004 to 0.032mm (microscopic) in inequant blocky mosaics.	C
517	DLMUD	Dolomite-mud - A type of dolomite-sediment. In the Rock Classification Scheme, it is one in which over 75% of the clasts are smaller than 32 µm. 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-mud.	R	Dolomite-mud		GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment with components >50% magnesium carbonate. Dolomite >50% of magnesium carbonate crystals. Components >50% or predominantly mud-grade, <0.032mm.	C
518	DLONC	Oncoid-dolostone - A type of dolostone composed dominantly of oncoids. British Geological Survey Research Report RR/99/03, section 3.2, table 9 and fig. 7.	R	Oncoid-dolostone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment with components >50% magnesium carbonate, >50% of magnesium carbonate is dolomite. Allochem dominantly as oncoids, >2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present. Component size undefined.	C
519	DLOOL	Ooid-dolostone - A type of dolostone composed dominantly of ooids. British Geological Survey Research Report RR/99/03, section 3.2, table 9 and fig. 7.	R	Ooid-dolostone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment with components >50% magnesium carbonate, >50% of magnesium carbonate is dolomite. Ooids dominant allochem, <2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures. Component size undefined.	C
520	DLPEL	Peloid-dolostone - A type of dolostone composed dominantly of peloids. British Geological Survey Research Report RR/99/03, section 3.2, table 9 and fig. 7.	R	Peloid-dolostone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment with components >50% magnesium carbonate, >50% of magnesium carbonate is dolomite. Peloids dominant allochem, 0.01 to 0.5mm spherical/ellipsoidal microcrystalline dolomite grains, internally structureless. If faecal origin, pellet.	C
521	DLPIS	Pisoid-dolostone - A type of dolostone composed dominantly of pisoids. British Geological Survey Research Report RR/99/03, section 3.2, table 9 and fig. 7.	R	Pisoid-dolostone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment with components >50% magnesium carbonate, >50% of magnesium carbonate is dolomite. Pisoids dominant allochem, >2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures.Component size undefined.	C
522	DLPSPT	Dolomite-pseudosparstone - A type of dolostone, classified on the basis of its diagenetic texture. It is a dolostone composed almost totally of a divergent radial fibrous calcite cement in which grains or in-situ biogenic material do not constitute a framework. British Geological Survey Research Report RR/99/03, section 3.2, table 8 and fig. 7.	R	Dolomite-pseudosparstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock with crystals >50% Mg carbonates. Dolomite >50% of Mg carbonate crystals. Petrological study shows non-obliterative insitu botryoidal dolomite pseudospar masses. No framework of grains/biogenic material. Radial fibrous calcite cement	C
523	DLPST	Dolomite-packstone - A type of dolostone, classified on the basis of its depositional texture. It is a grain-supported dolostone with intergranular spaces filled by matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 3.2, table 7 and fig. 7.	R	Dolomite-packstone		GRBA	24-FEB-00	TMCM	08-MAR-19	Grain-supported Sedimentary rock with components >50% magnesium carbonate. >50% of magnesium carbonate is dolomite. Matrix, (<0.032mm) fills intergranular spaces. Non-matrix grain size not defined	C
524	DLRHB	Dolerite, hypersthene-bearing	U	Hypersthene-bearing dolerite	hypersthene-bearing	AWEL	28-JAN-02	TMCM	31-AUG-18	Medium-grained, av. between 0.25-2mm normal crystalline extrusive/intrusive rock; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 <52wt%; no textural/genetic implication. Hypersthene present but <5%.	C
525	DLSD	Dolomite-sediment - In the Rock Classification Scheme, all dolomite sediments are given this group name. British Geological Survey Research Report RR/99/03, section 3.2 and fig. 7.	A	Dolomite-sediment		GRBA	24-FEB-00	TMCM	08-MAR-19	Unlithified carbonate with crystals >50% magnesium carbonate. Dolomite >50% of magnesium carbonate crystals. Crystal size not defined.	C

Displaying rows 506 to 525 of 3025