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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 601 to 620 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
601	FELRB	Felsite, riebeckite	U	Riebeckite felsite	riebeckite		AWEL	30-JUN-03	TMCM	31-AUG-18	Generally light coloured fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoids <10% QAPF, remainder dominantly feldspar; with 5-20% riebeckite.	C
602	FELS	Felsite - A type of fine-grained normal crystalline rock. It is a general term used for light-coloured aphanitic rocks. In the Rock Classification Scheme, the class includes rhyolitic-rock, dacitic-rock, and trachytic-rock. British Geological Survey Research Report RR/99/06, section 5.2 and fig. 17.	A	Felsite			GRBA	24-FEB-00	TMCM	22-FEB-19	Generally light coloured fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoids <10% QAPF, remainder dominantly feldspar; rhyodacite is a felsite	C
603	FELSAB	Felsite, albitised	U	Albitised felsite	albitised		AWEL	07-OCT-03	TMCM	31-AUG-18	Generally light coloured fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoids <10% QAPF, remainder dominantly feldspar. Metamorphosed by introduction/altertion of other minerals to albite, degree undefined.	C
604	FELSFO	Felsite, foliated	U	Foliated felsite	foliated		GRBA	24-FEB-00	TMCM	31-AUG-18	Fine-grained, av. <0.25mm generally light coloured aphanitic (>75% crystals <0.25mm) normal crystalline rock, preferred planar orientation of inequidiamensional minerals; quartz <60% or felspathoids <10% of QAPF, remainder dominantly feldspar	C
605	FELSH	Felsite, sheared	U	Sheared felsite	sheared		AWEL	15-FEB-01	TMCM	31-AUG-18	Generally leucocratic fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoid <10% QAPF, remainder dominantly feldspar. Relative movement of contiguous parts parallel to their plane of contact, cleavage.	C
606	FELSP	Felsite, porphyritic	U	Porphyritic felsite	porphyritic		AWEL	13-MAR-01	TMCM	31-AUG-18	Generally light coloured fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoids <10% QAPF, remainder dominantly feldspar.Contains undefined phenocrysts, larger crystals in finer matrix.	C
607	FELSPF	Felsite, foliated-porphyritic	U	Foliated-porphyritic felsite	foliated	porphyritic	AWEL	14-FEB-01	TMCM	31-AUG-18	Usually light coloured fine-grained, aphanitic (>75% crystals <0.25mm) norm crystalline rock; qtz <60% or foid <10% QAPF, remainder mainly feldspar. Larger crystals in finer matrix. <5mm planar structure, preferred orientation of platy/prismatic minerals.	C
608	FELSQP	Felsite, quartz-phyric	U	Quartz-phyric felsite	quartz-phyric		AWEL	01-SEP-03	TMCM	31-AUG-18	Generally light coloured fine-grained, aphanitic (>75% crystals <0.25mm) normal crystalline rock; quartz <60% or feldspathoids <10% QAPF, remainder dominantly feldspar. Quartz 5-20% as phenocrysts, larger crystals in finer matrix.	C
609	FELSR	Felsic-rock	N	Felsic-rock			AWEL	23-JAN-02	TMCM	31-AUG-18	Normal igneous rock grain-size undefined consisting dominantly of felsic minerals; quartz or feldspathoid, (nephelene/leucite/sodalite/nosean/analcime etc) alkali feldspar, (orthoclase/microcline/anorthoclase/sodic albite etc), plagioclase & scapolite.	C
610	FEMDST	Iron-mudstone - A type of ironstone, classified on the basis of its depositional texture. In the Rock Classification Scheme, it is a matrix-supported ironstone composed of greater than 75% matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 5.2, table 14 and fig. 9.	R	Iron-mudstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock (>15wt % iron), with particles >50% iron-bearing minerals (15wt% iron). Particles >50% or predominantly mud-grade, <0.032mm.	C
611	FEMG	Ironstone, manganiferous	U	Manganiferous ironstone	manganiferous		AWEL	26-JUL-04	TMCM	31-AUG-18	Sedimentary rock (>15wt% iron), no recognisable depositional texture with particles >50% iron-bearing minerals (15wt% iron). Particle size not defined. 5-20% manganese minerals.	C
612	FEMONC	Microoncoid-ironstone - A type of ironstone composed dominantly of microoncoids. British Geological Survey Research Report RR/99/03, section 5.2, table 15 and fig. 9. Synonym: iron-microoncolite.	R	Microoncoid-ironstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock (>15wt% iron), with particles >50% iron-bearing minerals (15wt% iron). Allochem dominantly as micro-oncoids, <2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present. Particle size not defined.	C
613	FEMUD	Iron-mud - A type of iron-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 5.1, table 13 and fig. 9. See also: silicate-mud.	R	Iron-mud			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt % iron) with particles >50% iron-bearing minerals (15wt% iron). Particles >50% or predominantly mud-grade, <0.032mm.	C
614	FENITE	Fenite - A type of metasomatic-rock. Fenites are desilicated crustal rocks formed by reaction with Na- and K-rich fluids expelled during the emplacement of carbonatite or undersaturated alkaline magmas. British Geological Survey Research Report RR/99/02, section 8.	R	Fenite			GRBA	24-FEB-00	TMCM	22-FEB-19	Metamorphic rock (grain size & protolith undefined) with significant chemical/mineralogical alteration, desilicated due to reaction with Na/K-rich fluids derived from carbonatite/unsaturated alkaline magmas; a metasomatic rock	C
615	FEOCBT	Ferrocarbonatite - A type of carbonatite. In the Rock Classification Scheme, this term may be used when a chemical classification is necessary because the rock is too fine grained for an accurate mode to be determined, or if the carbonate minerals are complex Ca-Mg-Fe solid solutions. The definition of ferrocarbonatite is as shown in British Geological Survey Research Report RR/99/06, section 6.1 and figs. 25, 26. See also: ferroan-carbonatite.	R	Ferrocarbonatite			GRBA	24-FEB-00	TMCM	22-FEB-19	Fine grained, av. between 0.032-0.25mm exotic crystalline intrusive/extrusive rock >50% modal primary carbonates or complex Ca-Mg-Fe carbonates; CaO <90wt%, Fe-Mn oxides >10wt%, MgO <50wt% of Ca+Mg+Fe+Mn oxides; chemical wt% oxide classification	C
616	FEONC	Oncoid-ironstone - A type of ironstone composed dominantly of oncoids. British Geological Survey Research Report RR/99/03, section 5.2, table 15 and fig. 9. Synonym: iron-oncolite.	R	Oncoid-ironstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt% iron), with particles >50% iron-bearing minerals (15wt% iron). Allochem dominantly as oncoids, >2mm coated grains with irregular partially overlapping laminae, biogenic structures may be present. Particle size not defined.	C
617	FEOOL	Ooid-ironstone - A type of ironstone composed dominantly of ooids. British Geological Survey Research Report RR/99/03, section 5.2, table 15 and fig. 9. Synonyms: ooidal ironstone; ironstone, ooidal.	R	Ooid-ironstone			AWEL	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt% iron), with particles >50% iron-bearing minerals (15wt% iron). Ooids dominant allochem, <2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures.Particle size not defined.	C
618	FEPEL	Peloid-ironstone - A type of ironstone composed dominantly of peloids. British Geological Survey Research Report RR/99/03, section 5.2, table 15 and fig. 9. Synonym: iron-peloidite.	R	Peloid-ironstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt% iron), with particles >50% iron-bearing minerals (15wt% iron). Peloids dominant allochem, 0.01 to 0.5mm spherical/ellipsoidal microcrystalline carbonate grains, internally structureless. If faecal origin, pellet.	C
619	FEPIS	Pisoid-ironstone - A type of ironstone composed dominantly of pisoids. British Geological Survey Research Report RR/99/03, section 5.2, table 15 and fig. 9. Synonym: iron-pisolite.	R	Pisoid-ironstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt% iron), with particles >50% iron-bearing minerals (15wt% iron). Pisoids dominant allochem, >2mm coated grains with smooth regular laminae, usually spherical/ellipsoidal no obvious biogenic structures.Particle size not defined.	C
620	FEPST	Iron-packstone - A type of ironstone, classified on the basis of its depositional texture. It is a grain-supported ironstone with intergranular spaces filled by matrix (mud-grade material smaller than 32 µm). British Geological Survey Research Report RR/99/03, section 5.2, table 14 and fig. 9.	R	Iron-packstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Grain-supported sedimentary rock (>15wt % iron) with grains >50% iron-bearing minerals (15wt% iron). Matrix (grains<0.032mm) fills intergranular spaces. Non-matrix grain size not defined.	C

Displaying rows 601 to 620 of 3025