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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 141 to 160 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	Q3	Q4	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
141	ARWST	Aragonite-wackestone - A lime-wackestone in which the carbonate is composed dominantly of aragonite. British Geological Survey Research Report RR/99/03, section 3.1 and fig. 6.	R	Aragonite-wackestone					GRBA	24-FEB-00	TMCM	08-MAR-19	Matrix supported Sedimentary rock with components >50% calcite/aragonite, >50% of calcium carbonate is aragonite. <75% matrix (particles <0.032mm).	C
142	ASBES	Asbestos waste - A type of artificial deposit. It is waste material derived from asbestos products or their manufacture. British Geological Survey Research Report RR/99/04, appendix 1.	R	Asbestos waste					GRBA	24-FEB-00	TMCM	13-MAR-19	Not Available	C
143	ASH	Ash - A type of pyroclastic-sediment. In the Rock Classification Scheme, it is a pyroclastic-sediment in which the average size of more than 75% of the pyroclastic fragments is less than 64 mm. Lapilli-tephra, lapilli-ash, and ash are separated according to the relative proportion of lapilli-grade (2 - 64 mm) and ash-grade (<2 mm) fragments: if less than 25% of the fragments are lapilli the sediment is ash. It is the unconsolidated equivalent of tuff. British Geological Survey Research Report RR/99/06, section 4.2 and fig. 4.	R	Ash					GRBA	24-FEB-00	TMCM	15-FEB-19	Unlithified clastic material >10% debris formed by volcanic processes, >75vol% pyroclastic fragments, >75% ash <2mm, <25% blocks/bombs >64mm & <25% lapilli 2-64mm. Tephra	C
144	ASHBRC	Ash-breccia - A type of pyroclastic-sediment. In the Rock Classification Scheme, it is a pyroclastic-sediment which contains more than 25% of each of the main pyroclastic fragment size divisions: blocks and bombs (>64 mm), lapilli (2 - 64 mm), and ash (<2 mm). It is the unconsolidated equivalent of tuff-breccia. British Geological Survey Research Report RR/99/06, section 4.2 and fig. 4.	R	Ash-breccia					GRBA	24-FEB-00	TMCM	15-FEB-19	Unlithified clastic material >10% debris formed by volcanic processes, >75% pyroclastic fragments, >25% of each of blocks/bombs >64mm, lapilli 2-64mm & ash <2mm, fragments dominantly angular	C
145	ASHC	Ash, crystal	U	Crystal ash	crystal				AWEL	17-DEC-04	TMCM	31-AUG-18	Unlithified clastic material >10% debris formed by volcanic processes; >75vol% pyroclastic fragments, >75% ash <2mm; crystals or crystal fragments >33%, pumice/glass <50% & rock fragments <50%	C
146	ASHFIL	Ash fill (industrial) - A type of artificial deposit. It is a general term for powdery residue left after combustion of any substance. British Geological Survey Research Report RR/99/04, appendix 1. See also: ash.	R	Ash fill (industrial)					GRBA	24-FEB-00	TMCM	13-MAR-19	Not Available	C
147	ASHL	Ash, lithic	U	Lithic ash	lithic				AWEL	17-DEC-04	TMCM	31-AUG-18	Unlithified clastic material >10% debris formed by volcanic processes; >75vol% pyroclastic fragments, >75% ash <2mm, rock fragments >33%, pumice/glass <50%, crystals/crystal fragments <50%; a pyroclastic sediment	C
148	ASHV	Ash, vitric	U	Vitric ash	vitric				AWEL	17-DEC-04	TMCM	31-AUG-18	Unlithified clastic material >10vol% debris formed by volcanic processes, >75vol% pyroclastic fragments, >75% ash, <2mm: >33% pumice/glass, <50%crystals/crystal fragments, <50% rock fragments of P,G+C,Cf+Rf	C
149	AUDI	Diorite, augite	U	Augite diorite	augite				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. 5-20% augite.	C
150	B	Boulders [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	Boulders [UDCS]					AWEL	09-JAN-02	TMCM	13-MAR-19	Not Available	C
151	BA	Basalt - A type of basaltic-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 fields 9 and 10 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. Andesite and basalt may be separated chemically using SiO₂ content: if wt% SiO₂ is less than 52% the rock is basalt. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17a, 19.	R	Basalt					GRBA	24-FEB-00	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, Na2O+K2O <5wt%	C
152	BAALK	Basalt, alkali - A type of basalt (TAS). In the Rock Classification Scheme, the root name basalt (TAS) may be divided into alkali basalt and subalkali basalt according to the state of silica saturation. If the analysis contains normative nepheline the rock may be called an alkali basalt. British Geological Survey Research Report RR/99/06, section 5.2.	U	Alkali basalt	alkali				AWEL	22-JUL-02	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 45-52wt%, (97% have <48.5), Na2O+K2O 1.4-5wt%, (97%>2.2). CIPW norm with nepheline.	C
153	BAANDT	Basaltic-andesite - A type of andesitic-rock, classified using the total alkali silica (TAS) classification. The TAS classification may be used if the mineral mode of a normal fine-grained crystalline rock cannot be determined due either to the presence of glass or to the fine-grained nature of the rock. The definition of basaltic-andesite is as shown in British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.	R	Basaltic-andesite					GRBA	05-MAY-00	TMCM	22-FEB-19	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock: TAS SiO2 52-57wt%, Na2O+K2O <5.9wt%	C
154	BAAPH	Basaltic-andesite, porphyritic	U	Porphyritic basaltic andesite	porphyritic				AWEL	07-OCT-03	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock: TAS SiO2 52-57wt%, Na2O+K2O <5.9wt%. Phenocrysts, larger crystals in finer matrix, size, amount & composition undefined.	C
155	BACOMA	Basalt, clinopyroxene-olivine-macrophyric	U	Clinopyroxene-olivine-macrophyric basalt	clinopyroxene	olivine	macrophyric		AWEL	15-OCT-03	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox2mm crystals in finer matrix, both 5-20%.	C
156	BACOMI	Basalt, clinopyroxene-olivine-microphyric	U	Clinopyroxene-olivine-microphyric basalt	clinopyroxene	olivine	microphyric		AWEL	15-OCT-03	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Cpx	C
157	BACOP	Basalt, clinopyroxene-olivine-phyric	U	Clinopyroxene-olivine-phyric basalt	clinopyroxene-olivine-phyric				AWEL	15-OCT-03	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feldspar >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox	C
158	BACOPA	Basalt, clinopyroxene-olivine-plagioclase-macrophyric	U	Clinopyroxene-olivine-plagioclase-macrophyric basalt	clinopyroxene	olivine	plagioclase	macrophyric	AWEL	15-OCT-03	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, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Cpx2mm crystals in finer matrix, all 5-20%.	C
159	BACOPP	Basalt, clinopyroxene-olivine-plagioclase-phyric	U	Clinopyroxene-olivine-plagioclase-phyric basalt	clinopyroxene	olivine	plagioclase	phyric	AWEL	15-OCT-03	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; qtz <20% or foid <10% of QAPF, feldspar >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%. Clinopyrox	C
160	BAFO	Basalt, foliated	U	Foliated basalt	foliated				AWEL	17-JAN-02	TMCM	31-AUG-18	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feld >65% plag; TAS SiO2 45-52wt%, Na2O+K2O <5wt%.<5mm planar texture, preferred orientation of platy/prismatic minerals.	C

Displaying rows 141 to 160 of 3025