Vocabularies — view dictionary terms

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 821 to 840 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
821	IMCOL	Impure-coal - A type of coal. It is a lithified end-member of the impure humic coal series. The impure humic coal series can be subdivided into muddy-peat / sandy-peat (the unlithified form) and impure-coal (the lithified form). British Geological Survey Research Report RR/99/03, section 6.1 and fig. 10.	R	Impure-coal	GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock containing heterogeneous mixture of a wide range of plant debris. <60 to >90% carbon, dry, ash-free. Volatiles <14 to >63%. 15 to 50% ash approximately equivalent to 50 to 80% organic matter.	C
822	INDWU	Industrial waste - A type of artifical deposit. It consists of waste products from industrial processes. British Geological Survey Research Report RR/99/04, appendix 1.	R	Industrial waste	GRBA	24-FEB-00	TMCM	13-MAR-19	Not Available	C
823	JASPER	Jasper - A type of chert whose red colour is due to the presence of haematite. British Geological Survey Research Report RR/99/03, section 8.2 and fig. 12.	R	Jasper	GRBA	24-FEB-00	TMCM	08-MAR-19	Non-clastic siliceous sedimentary rock with >50% silica of biogenic or chemical origin, porosity <10% hard, dense with vitreous lustre, cryptocrystalline, <0.004mm. Red due to haematite	C
824	KAINST	Kainite-stone - A type of non-carbonate salt that is composed of particles of the sulphate mineral kainite. British Geological Survey Research Report RR/99/03, section 7.1 and fig. 11.	R	Kainite-stone	GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock crystals >50% non-carbonate salt sulphate. Kainite (KMgClSO4.3H2O) >50% of non-carbonate salt, as white monclinic crystals in granular masses. Crystal size not defined. An evaporite.	C
825	KALI	Kalsilitite - A type of kalsilitic rock. Kalsilitite is the general name for fine-grained kalsilitic rocks. At present, only one true kalsilitic rock is known, namely olivine-pyroxene kalsilitite, known formerly as mafurite, from Uganda. No coarse-grained rocks containing more than 10% modal kalsilite have been found so far, but if such a rock is found, it should be called a kalsilitolite following the convention used in melilitic rock. British Geological Survey Research Report RR/99/06, section 6.3.	R	Kalsilitite	GRBA	24-FEB-00	TMCM	22-FEB-19	Fine-grained av. <0,25mm, exotic crystalline extrusive/intrusive rock; kalsilite>10%, only olivine	C
826	KALO	Kalsilitolite - A type of kalsilitic rock. No coarse-grained rocks containing more than 10% modal kalsilite have been found so far, but if such a rock is found, it should be called a kalsilitolite following the convention used in melilitic rock. British Geological Survey Research Report RR/99/06, section 6.3.	R	Kalsilitolite	GRBA	24-FEB-00	TMCM	22-FEB-19	Coarse-grained, av. between 2-16mm exotic crystalline intrusive rock; kalsilite >10%; none known	C
827	KALR	Kalsilitic rock - A type of exotic crystalline igneous rock. In the Rock Classification Scheme, it is defined as a rock that contains more than 10% modal kalsilite. Kalsilite is a very rare mineral, and its presence is sufficiently important to merit defining rocks with notable kalsilite as a separate group. In the present scheme a threshold value of 10% modal kalsilite has been adopted, the same as the threshold for melilitic rock and leucitic rock. Kalsilite behaves metastably and only rarely survives slow cooling, so virtually all rocks containing kalsilite are fine- or very fine-grained lavas. Coarse-grained rocks containing kalsilite (e.g. kalsilite-bearing syenite and kalsilite-bearing-biotite pyroxenite) have been reported from Russia; however they are extremely rare. British Geological Survey Research Report RR/99/06, section 6.3.	A	Kalsilitic rock	GRBA	24-FEB-00	TMCM	22-FEB-19	Exotic crystalline extrusive/intrusive rock; kalsilite>10%; grain-size not defined; only the olivine	C
828	KAOCLY	Kaolinite-clay - A type of monomineralic aluminium-silicate sediment in which the aluminium-silicate mineral is kaolinite. It is the unlithified equivalent of kaolinite-claystone. British Geological Survey Research Report RR/99/03, section 9.1 and table 19.	R	Kaolinite-clay	GRBA	24-FEB-00	TMCM	13-MAR-19	Monomineralic hydrated aluminium silicate sediment >50% kaolinite. Particles >50% or predominantly clay-grade, <0.004mm.	C
829	KAOCST	Kaolinite-claystone - A type of monomineralic aluminium-silicate sedimentary rock in which the aluminium-silicate mineral is kaolinite. It is the lithified equivalent of kaolinite-clay. British Geological Survey Research Report RR/99/03, section 9.1 and table 19. Synonym: china clay.	R	Kaolinite-claystone	GRBA	24-FEB-00	TMCM	13-MAR-19	Monomineralic hydrated aluminium silicate sedimentary rock >50% kaolinite. Particles >50% or predominantly clay-grade, <0.004mm. Synonymous with china clay.	C
830	KERNST	Kernite-stone - A type of non-carbonate salt that is composed of particles of the borate mineral kernite. British Geological Survey Research Report RR/99/03, section 7.1 and fig. 11.	R	Kernite-stone	GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock crystals >50% non-carbonate salt, borate. Kernite (Na2B4O7.4H2O) >50% of non-carbonate salt as white massive crystals. Crystal size not defined.	C
831	KERS	Kersantite - A type of lamprophyre. In the Rock Classification Scheme, it is a lamprophyre in which plagioclase is the dominant feldspar, and the predominant mafic minerals are biotite and diopsidic augite (with/without olivine). British Geological Survey Research Report RR/99/06, section 6.7 and figs. 31, 32.	R	Kersantite	GRBA	24-FEB-00	TMCM	22-FEB-19	Exotic crystalline intrusive/extrusive melano-mesocratic panidiomorphic rock; matrix plag>orthoclase, predominant mafic minerals phenocrystic biotite+diopsidic augite+/-olivine; feldspathoids, Ti-rich augite, amphibole, melilite rare/absent; a lamprophyre	C
832	KIEST	Kieserite-stone - A type of non-carbonate salt that is composed of particles of the sulphate mineral kierserite. British Geological Survey Research Report RR/99/03, section 7.1 and fig. 11.	R	Kieserite-stone	GRBA	24-FEB-00	TMCM	08-MAR-19	Sedimentary rock crystals >50% non-carbonate salt, sulphate. Kierserite (MgSO3) >50% of non-carbonate salt crystals. White monclinic crystal. Crystal size not defined. An evaporite.	C
833	KMB	Kimberlite - A type of exotic crystalline igneous rock. Kimberlites are currently divided into two groups. Group-1-kimberlite corresponds to archetypal rocks from Kimberley, South Africa that formerly were termed basaltic kimberlites. Group-2-kimberlite corresponds to micaceous or lamprophyric kimberlites. Recent studies have demonstrated that these two groups are mineralogically different and petrogenetically separate rock types. British Geological Survey Research Report RR/99/06, section 6.4.	A	Kimberlite	GRBA	24-FEB-00	TMCM	22-FEB-19	Volatile rich (CO2) potassic exotic intrusive rock; macro/megacrysts of +/- ol/ilmenite/pyrope/enstat/chrom in fine-grained av.<0.25mm matrix of montecell/phlog/perovsk/spinel/epidote/serp/sulphides/rut, +/- 2nd ol/cal/magnet/serpentine, no primary diop	C
834	KOMT	Komatiite - A type of picritic-rock. Its definition is as shown in British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 22.	R	Komatiite	GRBA	24-FEB-00	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 <53wt% , Na2O+K2O <1wt% , MgO >18wt% , TiO2 <1wt%	C
835	KRMST	Tonstein - A type of monomineralic aluminium-silicate sedimentary rock. It is a band of mudstone composed dominantly of kaolinite and associated with coal seams. British Geological Survey Research Report RR/99/03, section 13.6.	R	Tonstein	AWEL	30-MAY-02	TMCM	13-MAR-19	Siliciclastic sedimentary rock with >50vol% clasts from pre-existing siliceous rocks. Particles >50% or predominantly mud-grade, <0.032mm. Hydrated aluminium silicate rich, >20% kaolinite, associated with coal seams. Synonym for tonstein.	C
836	KTRBA	Potassic-trachybasalt - A potassic trachybasalt. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.	R	Potassic-trachybasalt	GRBA	24-FEB-00	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 45-52wt%, Na2O+K2O 5-7.3wt%, (Na2O-2.0)	C
837	L	Cobbles [Unlithified Deposits Coding Scheme] - A type of natural superficial deposit. The Unlithified Deposits Coding Scheme was developed as a way of coding unlithified deposits (also commonly referred to as superficial deposits, unconsolidated deposits, or engineering soils) that is consistent with civil engineering industry usage (BS5930).	R	Cobbles [UDCS]	AWEL	09-JAN-02	TMCM	13-MAR-19	Siliciclastic sediment, with >50vol% clasts from pre-existing siliceous rocks. Clasts >50% or predominantly cobble-grade 64 to 256mm. Composition not defined	C
838	LA	Latite - A type of trachytic-rock. In the Rock Classification Scheme, this name is used for a fine-grained crystalline igneous rock when the modal mineralogy is available, and the mineral mode plots in field 8 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17a, 19.	R	Latite	GRBA	24-FEB-00	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; quartz <5% QAPF, feldspar 35-65% alkali feldspar.TAS-SiO2 52-63wt%, Na2O+K2O 5.9-11.7wt%, (Na2O-2.0)	C
839	LAMGNT	Lamalginite - A type of sapropelite. It is one in which algal matter occurs in very thin laminae cryptically interbedded with mineral matter. British Geological Survey Research Report RR/99/03, section 6.3 and fig. 10.	R	Lamalginite	GRBA	24-FEB-00	TMCM	08-MAR-19	Sapropelite with algal matter occurring in very thin (<0.5mm) laminae cryptically interbedded with inorganic mineral matter.TOC >8%. Particle size not defined.	C
840	LAREN	Lithic-arenite - A type of arenite. In the Rock Classification Scheme, it is defined as shown in British Geological Survey Research Report RR/99/03, section 2.2 and figs. 3, 4.	R	Lithic-arenite	GRBA	24-FEB-00	TMCM	08-MAR-19	Siliclastic arenaceous sedimentary rock <15% matrix (particles <0.032mm). Clasts quartz <75%, feldspar <50% & rock fragments >25% of quartz+feldspar+rock fragments. Clast size not defined. Diamictite.	C

Displaying rows 821 to 840 of 3025