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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 81 to 100 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
81	AMPQXN	Amphibolite, quartz-xenolithic	U	Quartz-xenolithic amphibolite	quartz	xenolithic	AWEL	07-OCT-03	TMCM	31-AUG-18		Crystalloblastic commonly foliated metamorphic rock (grain size & protolith undefined); 35-90% mafic minerals, hornblende+plagioclase dominant +/-garnet/biotite/quartz. Containing 5-20% remnants of quartz from a pre-existing source-rock.	C
82	AMPSCH	Amphibolite, schistose	U	Schistose amphibolite	schistose		AWEL	13-MAR-01	TMCM	31-AUG-18		Crystalloblastic metamorphic rock (grain size & protolith undefined); 35-90% mafic minerals, hornblende+plagioclase dominant +/-garnet/biotite/quartz. Splits into <5mm slabs/flakes defined by well-developed planar orientation of platy/prismatic minerals.	C
83	AND	Andesite - A type of andesitic-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 greater than 52% the rock is andesite. British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17a, 19, 21.	R	Andesite			GRBA	24-FEB-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%	C
84	ANDA	Andesite, augite	U	Augite andesite	augite		AWEL	26-FEB-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. 5-20% augite present.	C
85	ANDCLA	Lava, andesitic	U	Andesitic lava	andesitic		DJLO	18-MAY-06	TMCM	31-AUG-18	I	Not Available	C
86	ANDFO	Andesite, foliated	U	Foliated andesite	foliated		GRBA	24-FEB-00	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock, preferred planar orientation of inequidiamensional minerals; CI <35vol% <40wt%; quartz <20% or feldspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 >52wt%	C
87	ANDGB	Andesite, garnet-bearing	U	Garnet-bearing andesite	garnet-bearing		AWEL	14-MAR-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. Garnet present but <5vol%.	C
88	ANDGL	Andesite, glassy	U	Glassy andesite	glassy		AWEL	15-FEB-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. Glass 50-100%.	C
89	ANDGR	Andesite, garnet-rich	U	Garnet-rich andesite	garnet-rich		AWEL	14-MAR-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. >20vol% garnet present.	C
90	ANDH	Andesite, hypersthene	U	Hypersthene andesite	hypersthene		AWEL	14-MAR-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. 5-20% hypersthene present	C
91	ANDLAV	Andesite, lava	U	Andesite lava	andesite		AWEL	29-MAY-02	TMCM	31-AUG-18		Material extruded in molten state and solidified; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 >52wt%	C
92	ANDLVH	Hornblende-andesite, lava	U	Hornblende-andesite lava	hornblende	andesite	AWEL	29-MAY-02	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. Extruded in molten state & solidified, grain-size not defined. 5-20% hornblende	C
93	ANDPX	Andesite, pyroxene	U	Pyroxene andesite	pyroxene		AWEL	13-FEB-01	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; CI <35vol%, <40wt%; quartz <20% or felspathoid <10% of QAPF, feldspar >65% plagioclase; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%. 5-20% pyroxene present.	C
94	ANDR	Andesitic-rock - A type of mafite. In the Rock Classification Scheme, this class includes andesite 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	Andesitic-rock			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 felspathoids <10% of QAPF, feldspar >65% plagioclase; TAS SiO2 52-63wt%, Na2O+K2O <7wt%	C
95	ANDRF	Andesitic-rock, foliated	U	Foliated andesitic-rock	foilated		AWEL	17-DEC-04	TMCM	31-AUG-18		Fine-grained, av.<0.25mm normal crystalline extrusive/intrusive rock; CI <35 vol% <40 wt%; qtz <20% or felspathoids <10% of QAPF, feldspar >65% plag; TAS SiO2 52-63wt%, Na2O+K2O <7wt% <5mm planar texture, preferred orientation of platy/prismatic minerals	C
96	ANDRT	Andesitic-rock (TAS)	N	Andesitic-rock (TAS)			AWEL	17-DEC-04	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline rock; TAS SiO2 52-63wt%, Na2O+K2O <7wt%	C
97	ANDT	Andesite (TAS) - 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 andesite (TAS) is as shown in British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.	R	Andesite (TAS)			GRBA	24-FEB-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS-SiO2 57-63wt%, Na2O+K2O <7wt%	C
98	ANDTFF	Tuff, andesitic	U	Andesitic tuff	andesitic		AWEL	30-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes; <25vol% pyroclastic fragments ash <2mm. Quartz <20% or felspathoids <10% of QAPF feldspar >65% plagioclase; TAS SiO2 <52wt%	C
99	ANDTH	Andesite, tholeiitic	U	Tholeiitic andesite	tholeiitic		DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
100	ANDVST	Volcaniclastic-sandstone, andesitic	U	Andesitic volcaniclastic-sandstone	andesitic		AWEL	31-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes; <25vol% pyroclastic fragments av. <0.032mm. Quartz <20% or felspathoids <10% of QAPF feldspar >65% plagioclase; TAS SiO2 <52wt%	C

Displaying rows 81 to 100 of 3025