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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 641 to 660 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
641	FMZDI	Foid-monzodiorite - A type of foid-dioritic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 13 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Foid-monzodiorite and foid-monzogabbro are distinguished according to the average composition of their plagioclase: if An (the anorthite content of plagioclase) is less than 50% the rock is foid-monzodiorite. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12.	R	Foid-monzodiorite			GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; feldspathoids 10-60% of QAPF, feldspar 50-90% plagioclase (<50% An) +/-mica/pyroxene/amphibole/olivine	C
642	FMZGB	Foid-monzogabbro - A type of foid-gabbroic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 13 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Foid-monzodiorite and foid-monzogabbro are distinguished according to the average composition of their plagioclase: if An (the anorthite content of plagioclase) is greater than 50% the rock is foid-monzogabbro. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12.	R	Foid-monzogabbro			GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; feldspathoids 10-60% of QAPF, feldspar 50-90% plagioclase (>50% An) +/-mica/pyroxene/ amphibole/olivine	C
643	FMZSY	Foid-monzosyenite - A type of foid-syenitic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 12 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12.	R	Foid-monzosyenite			GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; feldspathoids 10-60% of QAPF, feldspar 50-90% alkali feldspar +/- mica/pyroxene/amphibole/olivine	C
644	FOIDR	Foiditic-rock - A type of mafite. In the Rock Classification Scheme, this class includes foidite and similar rocks. The term may be used as a field classification when an accurate mineral mode from thin section examination, or a chemical analysis, is not available. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17, 18.	A	Foiditic-rock			GRBA	09-MAY-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; feldspathoids >60% of QAPF, remainder dominantly feldspar, TAS SiO2 <52.5wt%, Na2O+K2O 0->15wt%	C
645	FOIDRT	Foiditic-rock (TAS)	-	Foiditic-rock (TAS)			AWEL	17-DEC-04	TMCM	24-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 <52.5wt%, Na2O+K2O 0->15wt%	O
646	FONASH	Foundry ash - A type of artifical deposit. It consists of the residue left after the combustion of any substance, but commonly coal in metallic blast furnaces. British Geological Survey Research Report RR/99/04, appendix 1.	R	Foundry ash			GRBA	24-FEB-00	TMCM	13-MAR-19		Not Available	C
647	FONSLG	Foundry slag - A type of artifical deposit. It consists of semi-fused or fused waste material produced in the metal and glass industries. British Geological Survey Research Report RR/99/04, appendix 1.	R	Foundry slag			GRBA	24-FEB-00	TMCM	13-MAR-19		Not Available	C
648	FONSND	Foundry sand - A type of artifical deposit. It may be impregnated with organic materials produced in the metal and glass industries. British Geological Survey Research Report RR/99/04, appendix 1.	R	Foundry sand			GRBA	24-FEB-00	TMCM	13-MAR-19		Not Available	C
649	FPAND	Andesite, feldspar-phyric	U	Feldspar-phyric andesite	feldspar-phyric		TMCM	11-JAN-12	TMCM	31-AUG-18	I	Not Available	C
650	FPBA	Basalt, feldspar-phyric	U	Feldspar-phyric basalt	feldspar-phyric		AWEL	21-MAY-02	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or foid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. 5-20% feldspar phenocrysts, larger crystals in finer matrix.	C
651	FPBHAW	Hawaiite, basaltic, feldspar-phyric	U	Feldspar-phyric basaltic hawaiite	basaltic	feldspar-phyric	DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
652	FPHAW	Hawaiite, feldspar-phyric	U	Feldspar-phyric hawaiite	feldspar-phyric		AWEL	21-MAY-02	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 45-52wt%, Na2O+K2O 5-7.3wt%, (Na2O-2.0)>K2O. 5-20vol% feldspar phenocrysts, larger crystals in finer matrix. Sodic trachybasalt.	C
653	FPMGB	Gabbro, feldspar-phyric	U	Feldspar-phyric gabbro	feldspar-phyric		AWEL	21-MAY-02	TMCM	31-AUG-18		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine. 5-20vol% feldspar phenocrysts, larger crystals in finer matrix.	C
654	FPMGN	Microgranite, feldspar-phyric	U	Feldspar-phyric microgranite	feldspar-phyric		AWEL	10-JUN-02	TMCM	31-AUG-18		Medium-grained, av. between 0.25-2mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar +/- mica/amphibole. 5-20vol% feldspar phenocrysts, larger crystals in finer matrix.	C
655	FRPC	Foliated mechanically broken rock with primary cohesion - British Geological Survey Research Report RR/99/02, section 7.3.	A	Foliated mechanically broken rock with primary cohesion			AWEL	08-JUN-01	TMCM	22-FEB-19		Deformed (brittle), rock with primary cohesion (protolith undefined) 10-50% frags in finer matrix, grain size reduction by mechanical fragmentation +/- recrystallisation of matrix. <5mm planar text/structure from orientation of platy/prismatic minerals	C
656	FSIMST	Silicate-mudstone, fissile	U	Fissile silicate-mudstone	fissile		AWEL	10-JUN-02	TMCM	31-AUG-18		Siliciclastic argillaceous sedimentary rock, particles >50% from pre-existing siliceous rocks. Particles >50% or predominantly mud-grade, <0.032mm. Thin-laminated, splits easily into thin layers of 0.5-1mm. A Shale.	C
657	FSLMST	Silicate-mudstone, ferruginous	U	Ferruginous silicate-mudstone	ferruginous		AWEL	31-MAY-02	TMCM	31-AUG-18		Siliciclastic sedimentary rock, particles >50% or predominantly mud-grade, <0.032mm, >50% material derived from pre-existing siliceous rocks. 5-20% iron oxide/hydroxide minerals (>15wt% iron). Includes a shale.	C
658	FSLST	Siltstone, ferruginous	U	Ferruginous siltstone	ferruginous		AWEL	31-MAY-02	TMCM	31-AUG-18		Siliciclastic sedimentary rock, particles >50% or predominantly silt-grade, 0.004 to 0.032mm. Composition not defined. 5-20% iron oxide/hydroxide minerals (15wt% iron).	C
659	FSTSI	Ironstone, siliceous	U	Siliceous ironstone	siliceous		AWEL	04-SEP-02	TMCM	31-AUG-18		Sedimentary rock (>15wt% iron), no recognisable depositional texture with particles >50% iron-bearing minerals (15wt% iron). 5-20% silica of biogenic or chemical origin. Particle size not defined.	C
660	FTUFF	Tuff, felsic	U	Felsic tuff	felsic		AWEL	22-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes; >75vol% pyroclastic fragments, >75% ash <2mm; chemically normal quartz <60% or feldspathoids <10% of QAPF, remainder dominantly feldspar	C

Displaying rows 641 to 660 of 3025