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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 946 to 965 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
946	MAFI	Mafite - A type of fine-grained normal crystalline rock. It is a general term used for dark-coloured aphanitic rocks. In the Rock Classification Scheme, the class includes andesitic-rock, basaltic-rock, phonolitic-rock, tephritic-rock and foiditic-rock. British Geological Survey Research Report RR/99/06, section 5.2 and fig. 17.	A	Mafite		GRBA	24-FEB-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm generally dark coloured, aphanitic normal crystalline extrusive/intrusive rock; composition not defined.	C
947	MAFRY	Meta-alkali-feldspar-rhyolite	N	Meta-alkali-feldspar-rhyolite		AWEL	21-JAN-02	TMCM	30-AUG-18		Fine-grained, av. <0.25mm, normal crystalline, extrusive/intrusive, meta-igneous rock with a field identifiable alkali-feldspar-rhyolite protolith; quartz 20-60% QAPF, feldspar >90% alkali feldspar.	C
948	MAFSY	Meta-alkali-feldspar-syenite	N	Meta-alkali-feldspar-syenite		AWEL	21-JAN-02	TMCM	30-AUG-18		Coarse-grained (av. 2-16mm), normal crystalline, intrusive, meta-igneous rock with a field identifiable alkali-feldspar-syenite protolith; quartz <5% of QAPF, feldspar >90% alkali feldspar, +/- mica/amphibole.	C
949	MAFTR	Meta-alkali-feldspar-trachyte	N	Meta-alkali-feldspar-trachyte		AWEL	21-JAN-02	TMCM	30-AUG-18		Fine-grained av. <0.25mm, normal crystalline, extrusive/intrusive, meta-igneous rock with a field identifiable alkali-feldspar-trachyte protolith; quartz <5% QAPF, feldspar >90% alkali feldspar	C
950	MAG	Magnetitite - A type of rock of restricted mineralogy. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock in which magnetite exceeds 90% of the mineral mode. British Geological Survey Research Report RR/99/06, section 8.2.	R	Magnetitite		GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm crystalline intrusive rock; magnetite >90%	C
951	MAGATE	Meta-agate	N	Meta-agate		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock with a field identifiable agate protolith. >50% silica of biogenic or chemical origin, porosity <10% hard, dense with vitreous lustre. Translucent cryptocrystalline <0.004mm quartz, colour banded.	C
952	MAGBA	Meta-agglomerate, basaltic	U	Basaltic meta-agglomerate	basaltic	AWEL	21-JAN-02	TMCM	31-AUG-18		Field identifiable basaltic-agglomerate protolith. Well sorted clastic material (>10% debris) of volc processes; >75% pyroclastic frags, >75% >64mm bombs>blocks, <25% 2-64mm lapilli + <2mm ash. >40 wt%; qtz <20% or feldspath <10% of QAPF, felds >65% plag	C
953	MAGCU	Magnetite, cumulate	U	Cumulate magnetite	cumulate	AWEL	17-DEC-04	TMCM	31-AUG-18		Coarse-grained, av. between 2-16mm crystalline intrusive rock commonly with >5mm sub-monomineralic layers; magnetite >90%	C
954	MAGG	Meta-agglomerate	N	Meta-agglomerate		GRBA	24-FEB-00	TMCM	30-AUG-18		Meta-igneous rock with a field identifiable agglomerate protolith. Unimodal well sorted lithified clastic material (>10% debris) formed by volcanic processes; >75% pyroclastic fragments, >75% >64mm bombs (rounded) >blocks, <25% 2-64mm lapilli + <2mm ash	C
955	MAGMBR	Magmatic-breccia	N	Magmatic-breccia		DJLO	15-DEC-06	TMCM	31-AUG-18	I	Not Available	C
956	MAGQG	Quartz-garnet-magnetite-rock	N	Quartz-garnet-magnetite-rock		AWEL	21-MAY-02	TMCM	31-AUG-18		Igneous, metamorphic or sedimentary rock, composed dominantly of quartz	C
957	MAGTR	Meta-agglomerate, trachytic	U	Trachytic meta-agglomerate	trachytic	AWEL	21-JAN-02	TMCM	31-AUG-18		Field identifiable trachytic-agglomerate protolith. Well sorted clastic material (>10% debris) of volc processes; >75% pyroclastic frags, >75% >64mm bombs>blocks, <25% 2-64mm lapilli + <2mm ash. >40 wt%; qtz <5% of QAPF, feldspar 65-90% alkali feldspar.	C
958	MAKBST	Meta-ankerite-boundstone	N	Meta-ankerite-boundstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Metased rock, field identifiable ankerite-boundstone protolith. Components >50% mag carbonates, >50% mag carbonate is ankerite. Origin components bound & encrusted by action of plants/animals in growth position (reef limestone). Component size undefined.	C
959	MAKFST	Meta-ankerite-framestone	N	Meta-ankerite-framestone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock, field identifiable ankerite-framestone protolith. Components >50% magnesium carbonates, >50% of magnesium carbonate is ankerite Fine, 0.032 to 0.25mm sediment fills cavities in framework of colonies of shells or skeletons.	C
960	MAKGST	Meta-ankerite-grainstone	N	Meta-ankerite-grainstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock, field identifiable ankerite-grainstone protolith.Grain-supported rock with components >50% magnesium carbonates, >50% of magnesium carbonate is ankerite, <15% matrix, (particles <0.032mm), component size not defined.	C
961	MAKMCS	Meta-ankerite-microstone	N	Meta-ankerite-microstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock, field identifiable ankerite-microstone protolith. Crystals >50% mag carbonate, ankerite >50% of mag carbonate crys. Petrological study shows obliterative sparry ankerite, <0.004mm in inequant blocky mosaics. Crystals submicroscopic	C
962	MAKMSP	Meta-ankerite-microsparstone	N	Meta-ankerite-microsparstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock, field identifiable ankerite-microsparstone. Crystals >50% mag carbonate, ankerite >50% of magesium carbonate crys. Petrological study shows obliterative sparry ankerite 0.032 to 0.004mm (microscopic) in inequant blocky mosaics.	C
963	MAKMST	Meta-ankerite-mudstone	N	Meta-ankerite-mudstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock with field identifiable ankerite-mudstone protolith. Matrix supported with components >50% magnesium carbonate, >50% of magnesium carbonate is ankerite. >50% or predominantly matrix (crystals <0.032mm).	C
964	MAKPSP	Meta-ankerite-pseudosparstone	N	Meta-ankerite-pseudosparstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sed rock, field identifiable ankerite-pseudosparstone protolith. >50% Mg-carbonates, ankerite >50% of Mg-carbonate crystals. Non-obliterative insitu botryoidal anker pseudospar masses. No grains/biogenic framework. Radial fibrous calcite cement	C
965	MAKPST	Meta-ankerite-packstone	N	Meta-ankerite-packstone		AWEL	31-JUL-02	TMCM	30-AUG-18		Meta-sedimentary rock, field identifiable ankerite-packstone protolith. Grain-supported rock with grains >50% magnesium carbonates, >50% of magnesium carbonate is ankerite. Matrix, particles <0.032mm fills intergranular spaces. Component size not defined	C

Displaying rows 946 to 965 of 3025