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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 2446 to 2465 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
2446	RYAG	Agglomerate, rhyolitic	U	Rhyolitic agglomerate	rhyolitic		AWEL	05-SEP-02	TMCM	31-AUG-18		Not Available	C
2447	RYCLAV	Lava, rhyolitic	U	Rhyolitic lava	rhyolitic		DJLO	07-JUN-06	TMCM	31-AUG-18	I	Not Available	C
2448	RYDA	Rhyodacite - The term has in the past been used ambiguously for rocks of fields 3b and 4 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram, and is permitted by IUGS for rocks transitional between rhyolite and dacite without attributing it to a distinct field. The name felsite is preferred if there is inadequate information to assign to a specific field. British Geological Survey Research Report RR/99/06, section 5.	R	Rhyodacite			TMCM	27-MAY-20			I	Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; quartz 20-60% of QAPF, feldspar 35-90% plagioclase; felsite is the preferred term	O
2449	RYFL	Rhyolite, flow-laminated	U	Flow-laminated rhyolite	flow-laminated		AWEL	17-DEC-04	TMCM	31-AUG-18		Not Available	C
2450	RYGL	Rhyolite, glassy	U	Glassy rhyolite	glassy		AWEL	17-DEC-04	TMCM	31-AUG-18		Fine-grained, av. <0.25mm glass 50-100% normal crystalline extrusive/intrusive rock; quartz 20-60% QAPF, feldspar 35-90% alkali feldspar	C
2451	RYLAVA	Lava, rhyolite	U	Rhyolite lava	rhyolitic		AWEL	21-MAY-02	TMCM	31-AUG-18		Material extruded in a molten state and solidified; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar	C
2452	RYLTGB	Lapilli-tuff, rhyolitic, garnet-bearing	U	Garnet-bearing rhyolitic lapilli-tuff	rhyolitic	garnet-bearing	TMCM	13-FEB-13	TMCM	31-AUG-18	I	Not Available	C
2453	RYLTUF	Lapilli-tuff, rhyolitic	U	Rhyolitic lapilli-tuff	rhyolitic		AWEL	21-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes, >75vol% pyroclastic fragments, >75% lapilli 2-64mm; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar	C
2454	RYPK	Rhyolite, peralkaline - A type of rhyolite (TAS). In the Rock Classification Scheme, rhyolite (TAS) may be classified as peralkaline if the peralkaline index is greater than 1. British Geological Survey Research Report RR/99/06, section 5.2.	U	Peralkaline rhyolite	peralkaline		AWEL	18-JUN-04	TMCM	22-FEB-19		Not Available	C
2455	RYR	Rhyolitic-rock - A type of felsite. In the Rock Classification Scheme, this class includes rhyolite 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	Rhyolitic-rock			GRBA	24-FEB-00	TMCM	22-FEB-19		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; quartz 20-60% of felsics, feldspar >35% alkali feldspar; TAS SiO2 >69wt%;formerly Rhyolitoid	C
2456	RYRBP	Rhyolitic-rock, biotite-phyric	U	Biotite-phyric rhyolitic-rock	biotite-phyric		AWEL	03-JUL-01	TMCM	31-AUG-18		Not Available	C
2457	RYRT	Rhyolitic-rock (TAS)	N	Rhyolitic-rock (TAS)			AWEL	17-DEC-04	TMCM	31-AUG-18		Fine-grained, av. <0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 >69wt%; formerly Rhyolitoid	C
2458	RYT	Rhyolite (TAS) - A type of rhyolitic-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 rhyolite (TAS) is as shown in British Geological Survey Research Report RR/99/06, section 5.2 and figs. 17b, 20.	R	Rhyolite (TAS)			GRBA	24-FEB-00	TMCM	22-FEB-19		Fine-grained, av. < 0.25mm normal crystalline extrusive/intrusive rock; TAS SiO2 >69wt%	C
2459	RYTUF	Tuff, rhyolitic	U	Rhyolitic tuff	rhyolitic		AWEL	22-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes, 75vol% pyroclastic fragments, 75% ash, <2mm; quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar	C
2460	RYVST	Volcaniclastic-sandstone, rhyolitic	U	Rhyolitic volcaniclastic-sandstone	rhyolitic		AWEL	22-MAY-02	TMCM	31-AUG-18		Lithified clastic material >10% debris formed by volcanic processes, 25vol% pyroclastic fragments, av. fragment size sand grade (0.032-2mm); quartz 20-60% of QAPF, feldspar 35-90% alkali feldspar	C
2461	S	Sand [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	Sand [UDCS]			AWEL	09-JAN-02	TMCM	13-MAR-19		Not Available	C
2462	SACHLK	Chalk, sandy	U	Sandy chalk	sandy		DJLO	05-MAY-09	TMCM	31-AUG-18	I	Not Available	C
2463	SACL	Clay, sandy [Obsolete code: use CS]	U	Sandy clay	sandy		GRBA	24-FEB-00	TMCM	02-OCT-20		Not Available	O
2464	SACLLM	Limestone, clayey sandy	U	Sandy clayey limestone	sandy	clayey	DJLO	05-MAY-09	TMCM	31-AUG-18	I	Not Available	C
2465	SADOLO	Dolostone, sandy	U	Sandy dolostone	sandy		AWEL	31-MAY-02	TMCM	31-AUG-18		Not Available	C

Displaying rows 2446 to 2465 of 3025