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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 786 to 805 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	TRANSFER	DEFINITION_BKING	STATUS
786	HBR	Hornblende-rock - A type of meta-ultramafic-rock in which the dominant mineral is hornblende. British Geological Survey Research Report RR/99/02, section 5.2.	R	Hornblende-rock			GRBA	24-FEB-00	TMCM	22-FEB-19		Crystalloblastic metamafic-rock (grain size & protolith undefined) containing >90% metamafic minerals (hornblende dominant); CI >90%	C
787	HBSCH	Schist, hornblende	U	Hornblende schist	hornblende		GRBA	24-FEB-00	TMCM	31-AUG-18		Medium-grained (av. 0.25-2mm) strongly foliated metamorphic rock; (protolith undefined) splits into <5mm slabs/flakes defined by well-developed planar orientation of platy/prismatic minerals. 5-20vol% hornblende.	C
788	HBT	Hornblendite - A type of ultramafic-rock. In the Rock Classification Scheme, it is a coarse-grained ultramafic rock with less than 40% olivine, and hornblende dominant over pyroxene. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 15, 16.	A	Hornblendite			GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CIM>90%; olivine 5-40%, pyroxene	C
789	HBTR	Hornblende-trachyte	N	Hornblende-trachyte			DJLO	07-JUL-08	TMCM	31-AUG-18	I	Not Available	C
790	HBTSS	Hornblendite (s.s.) - A type of hornblende-rich (>90%) hornblendite. In the Rock Classification Scheme, it is a hornblendite with olivine <10%, pyroxene <10% and hornblende >90% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16.	R	Hornblendite (s.s.)			GRBA	24-FEB-00	TMCM	22-FEB-19		Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; CI M>90%, olivine <10%, pyroxene <10%, hornblende >90% of Ol+Px+Hb	C
791	HC	Shells, clayey [Unlithified Deposits Coding Scheme - Extended]	U	Clayey shells [UDCS-X]	clayey		TMCM	28-MAY-20			I	Not Available	C
792	HERBI	Herbicide - A type of artifical deposit. It is a substance toxic to plants and used to kill unwanted vegetation. British Geological Survey Research Report RR/99/04, appendix 1.	R	Herbicide			GRBA	24-FEB-00	TMCM	13-MAR-19		Not Available	C
793	HFBA	Basalt, hornfelsed	U	Hornfelsed basalt	hornfelsed		AWEL	21-MAY-02	TMCM	31-AUG-18		Basalt protolith rock recrystallised by contact metamorphism to a hard rock lacking parting planes. Was <0.25mm grained in-/extrusive CI >35 vol% >40 wt%; quartz <20% or feldspathoid <10% of QAPF, feld >65% plagioclase; TAS SiO2 45-52wt%, Na2O+K2O <5wt%.	C
794	HFBRC	Breccia, hornfelsed	U	Hornfelsed breccia	hornfelsed		AWEL	10-JUN-02	TMCM	31-AUG-18		Hard granoblastic rock, grains 0.032-2mm recrystallised by contact metamorph, no parting planes, pre-existing features seen as lithological heterogeneities. Protolith; no foliation/cohesion; >30% fragments coarser than matrix, some rotation/granulation.	C
795	HFLMST	Limestone, hornfelsed	U	Hornfelsed limestone	hornfelsed		AWEL	10-JUN-02	TMCM	31-AUG-18		Metasedimentary rock, limestone protolith with crystals >50% calcite/aragonite. Crystal size not defined. Recrystallised by contact metamorphism to a hard rock lacking parting planes. A marble.	C
796	HFMDST	Mudstone, hornfelsed	U	Hornfelsed mudstone	hornfelsed		AWEL	31-MAY-02	TMCM	31-AUG-18		Metasedimentary rock, mudstone protolith, original, particles >50% or dominantly <0.032mm. Hard, granoblastic rock, recrystallised by contact metamorphism, lacks parting planes, pre-existing features identified by lithological heterogeneities; granofels.	C
797	HFSDST	Sandstone, hornfelsed	U	Hornfelsed sandstone	hornfelsed		AWEL	10-JUN-02	TMCM	31-AUG-18		Siliciclastic metasedimentary rock, sandstone (sand-grade clasts dominantly 0.032-2mm with <75% <0.032mm & <25% >2mm) protolith (compositon undefined), recrystallised by contact metamorphism to hard rock lacking parting planes	C
798	HFSLST	Siltstone, hornfelsed	U	Hornfelsed siltstone	hornfelsed		AWEL	10-JUN-02	TMCM	31-AUG-18		Metasediment rock, siltstone protolith, original particles >50% or predominantly 0.004-0.032mm. Hard, granoblastic rock, recrystallised by contact meta, lacks parting planes, pre-existing features identified by lithological heterogeneities; a granofels.	C
799	HNFELS	Hornfels - A type of contact metamorphic rock. Hornfels is a variant of granofels. The term is applied to a hard fine- to medium-grained rock of unknown protolith and modal composition which lacks parting planes and has recrystallised as a result of contact metamorphism. British Geological Survey Research Report RR/99/02, section 6.1.	R	Hornfels			GRBA	24-FEB-00	TMCM	22-FEB-19		Hard, fine to medium-grained (av. 0.032-2mm) granoblastic rock (protolith undefined), recrystallised by contact metamorphism, lacks parting planes, pre-existing features identified by lithological heterogeneities; a granofels	C
800	HSC	Shells, sandy, clayey [Unlithified Deposits Coding Scheme - Extended]	U	Clayey sandy shells [UDCS-X]	sandy	clayey	TMCM	28-MAY-20			I	Not Available	C
801	HSZ	Shells, sandy, silty [Unlithified Deposits Coding Scheme - Extended]	U	Silty sandy shells [UDCS-X]	sandy	silty	TMCM	28-MAY-20			I	Not Available	C
802	HY	Hyaloclastite - This describes rocks or sediments composed entirely of shattered, angular, glassy fragments created by quenching of lavas during subaqueous or subglacial extrusion. British Geological Survey Research Report RR/99/06, section 4.2.	R	Hyaloclastite			GRBA	24-FEB-00	TMCM	15-FEB-19		Material extruded in molten state & quenched to yield shattered angular glassy fragments; no composition/clast size inferred	C
803	HYBA	Hyaloclastite, basaltic	U	Basaltic hyaloclastite	basaltic		DJLO	06-AUG-08	TMCM	31-AUG-18	I	Not Available	C
804	HYBSD	Hybrid sediment - In the Rock Classification Scheme, these are sediments which comprise more than one primary compositional component, with no component forming more than 50%. British Geological Survey Research Report RR/99/03, section 11.	A	Hybrid sediment			GRBA	24-FEB-00	TMCM	13-MAR-19		Sediment with two equal components. Clasts of each estimated as 50% of total. Composition & clast size not defined. Field name only.	C
805	HYBSDR	Hybrid sedimentary rock - In the Rock Classification Scheme, these are sedimentary rocks which comprise more than one primary compositional component, with no component forming more than 50%. British Geological Survey Research Report RR/99/03, section 11.	A	Hybrid sedimentary rocks			GRBA	24-FEB-00	TMCM	13-MAR-19		Sedimentary rock with two equal components. Clasts of each estimated as 50% of total. Composition & clast size not defined. Field name only.	C

Displaying rows 786 to 805 of 3025