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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 606 to 625 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
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
621	FESD	Iron-sediment - In the Rock Classification Scheme, all iron-sediments are given this group name. This is the unlithified equivalent of ironstone. British Geological Survey Research Report RR/99/03, section 5.1 and fig. 9.	A	Iron-sediment			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt % iron) with components >50% iron-bearing minerals (15wt%). Component size not defined	C
622	FESND	Iron-sand - A type of iron-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 5.1, table 13 and fig. 9. See also: silicate-sand.	R	Iron-sand			GRBA	24-FEB-00	TMCM	08-MAR-19	Sediment (>15wt % iron) with grains >50% iron-bearing minerals (15wt% iron). Grains >50% or predominantly sand-grade, 0.032 to 2mm.	C
623	FEST	Ironstone - In the Rock Classification Scheme, all lithified iron-rich sedimentary rocks are given this group name. This is the lithified equivalent of iron-sediment. The textural classification of ironstones follows that for limestone. The classification of ironstones composed dominantly of one constituent similarly follows that for limestone. British Geological Survey Research Report RR/99/03, section 5.2 and fig. 9.	A	Ironstone			GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock (>15wt% iron), no recognisable depositional texture with particles >50% iron-bearing minerals (15wt% iron). Particle size not defined.	C
624	FESTC	Clay-ironstone	N	Clay-ironstone			AWEL	16-MAR-04	TMCM	31-AUG-18	Sedimentary rock (>15wt% iron), no recognisable depositional texture with particles >50% iron-bearing minerals (15wt% iron). Particles >50% or predominantly clay-grade, <0.004mm.	C
625	FESTN	Ironstone nodular	U	Nodular ironstone	nodular		AWEL	17-OCT-03	TMCM	31-AUG-18	Sedimentary rock (>15wt% iron), no recognisable depositional texture with particles >50% iron-bearing minerals (15wt% iron). 5-20% of particles clumped together in, usually >2mm, nodules. Particle size not defined.	C

Displaying rows 606 to 625 of 3025