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pyroxene gneiss

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

pyroxene gneiss See GRANULITE.

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AILSA ALLABY and MICHAEL ALLABY. "pyroxene gneiss." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 Nov. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "pyroxene gneiss." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (November 27, 2009). http://www.encyclopedia.com/doc/1O13-pyroxenegneiss.html

AILSA ALLABY and MICHAEL ALLABY. "pyroxene gneiss." A Dictionary of Earth Sciences. 1999. Retrieved November 27, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-pyroxenegneiss.html

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	Geological position and origin of augen gneisses from the Policka Unit, eastern Bohemian Massif Magazine article from: Journal of Geosciences; 4/1/2009; ; 700+ words ; ...migmatitic augen gneisses were affected by...geothermobarometry, augen gneiss, Policka Unit Received...plagioclase forms augen in gneiss of the diorite or...2009). Dark grey gneisses with oval feldspar...the Policka augen gneiss merits discussion...geochemistry of augen gneisses make ...
	Relations between granitoid magmatism and migmatization: U-Pb geochronological evidence from the Western Gneiss Complex, Norway Magazine article from: Journal of the Geological Society; 11/1/2003; ; 700+ words ; ...1987). The Western Gneiss Complex is dominated...compositions. Mafic gneisses, amphibolitcs, ultramafic...ages indicate that the gneisses formed between 1750 and...forming time period. Gneisses from the northern parts of the Western Gneiss Complex range in age...
	Proposal for a terrane-based nomenclature for the Lewisian Gneiss Complex of NW Scotland Magazine article from: Journal of the Geological Society; 1/1/2005; ; 700+ words ; ...Historically, the Lewisian Gneiss Complex of NW Scotland has...numerous other high-grade gneiss complexes (e.g. Park...Initially, the basement gneisses were called the 'Fundamental Gneiss' by Murchison, followed by...
	Two Types of "Augen Gneisses" in the Snieznik Metamorphic Unit, West Sudetes, Poland Magazine article from: Geolines; 1/1/2006; ; 700+ words ; ...subdivided into Snieznik and Gierattw gneisses (see Don et al. 1990). The first...rodding to flattened, augen (ortho)gneisses, while the second ones are diversified...grained and compositionally banded (para)gneisses to embrechnites, biotite-rich and...
	REE Accessory Minerals in the Gneiss and Granulite Clasts from the Silesian Unit (Western Outer Carpathians, SE Poland) as Indicators of Metamorphic Processes Magazine article from: Geolines; 1/1/2006; ; 700+ words ; ...secondary monazite-(Ce) was stated in gneiss clast (sample B-2) from Bukowiec...crystals. Monazite-(Ce) from gneisses contains 3.24 wt.% of ThO2 and...partially mantles monazite was noticed in gneiss (sample B-1) from Bukowiec. Zircon...
	Retrograde metamorphism in a regional shear zone and related chemical changes: The Kaplice Unit of muscovite-biotite gneisses in the Moldanubian Zone of southern Bohemia, Czech Republic Magazine article from: Journal of the Czech Geological Society; 1/1/2005; ; 700+ words ; ...with element abundances in gneisses of the adjacent Monotonous...depleted in comparison to biotite gneisses of both the Monotonous and...reactions in calc-silicate gneiss interbands resulted in replacement...Introduction Muscovite-biotite gneisses carrying substantial amounts...
	U-Pb geochronology of the Fort Augustus granite gneiss: Constraints on the timing of neoproterozoic and palaeozoic tectonothermal events in the NW highlands of Scotland Magazine article from: Journal of the Geological Society; 1/1/2001; ; 700+ words ; Abstract: The West Highland granite gneiss suite in Inverness-shire, Scotland, represents...member of the suite, the Fort Augustus granite gneiss, indicates that the granitic protolith to the gneiss was intruded at 870 30 Ma. This is indistinguishable...
	The Problem of Garnet Composition in Eclogite-Bearing Gneisses from the Snieznik Metamorphic Complex (Western Sudetes) Magazine article from: Geolines; 1/1/2006; ; 700+ words ; ...meters long, lensoidal bodies inside gneisses. Mostly they are surrounded by two...clinozoisite and sphene, also present in the gneisses, were interpreted as the products of...observed in the ultra-high pressure gneisses from the classical UHP terrane: Dabie...
	Rb-Sr and U-Pb geochronology of migmatitic gneisses from the Gory Sowie (West Sudetes, Poland): The importance of mid-late Devonian metamorphism Magazine article from: Journal of the Geological Society; 11/1/1998; ; 700+ words ; ...Poland consists of a gneiss-migmatite complex with...granulites. Migmatitic gneisses underwent a complex polyphase...amphibolite-facies gneisses (Zelazniewicz 1985...metamorphism of the dominant gneiss sequences was long believed...occurrences of migmatitic gneisses previously interpreted...
	Geochemistry and petrology of high-pressure kyanite-garnet-albite-K-feldspar felsic gneisses and granulites from the Kutná Hora Complex, Bohemian Massif Magazine article from: Journal of Geosciences; 4/1/2009; ; 700+ words ; ...bearing albitic felsic gneisses with high-pressure...garnet-muscovite gneiss derived from garnetiferous...garnet-muscovite felsic gneiss contains locally garnet...dumortierite occur in migmatitic gneisses of the Maln Unit, while...common in the felsic gneiss (M^sub 3^). Textural...

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Related entries from encyclopedias, dictionaries, and thesauruses

	Gneiss Book article from: World of Earth Science ...those rich in iron . Calcareous gneiss contains calcite (CaCO 3...sand and clay . Calcareous gneisses with large fractions of calcite...metamorphosed limestones). Hornblende gneiss contains a large fraction of...its quartz and feldspar. The gneisses can be alternatively categorized...
	high-grade gneiss terrain Book article from: The Oxford Companion to the Earth ...terrain ‘High-grade gneiss terrain’ is the...x2019;. High-grade gneiss terrains are characterized...granodiorites and tonalites. Gneisses of sedimentary and volcanic...once thought that high-grade gneiss terrains represented a fundamentally...
	gneiss Book article from: The Columbia Encyclopedia, Sixth Edition ...schist. The light bands of gneiss are generally composed...form the dark bands. Gneisses result from the metamorphism...Precambrian regions. Gneiss is found in New England...and the Rocky Mts. Some gneisses are used as facing stone...
	mantled gneiss dome Book article from: A Dictionary of Earth Sciences mantled gneiss dome A dome of granitic migmatites and gneisses surrounded by a ‘mantle’ of metasediments which characteristically...density inversion in which dense rocks overlie a less dense, granite — gneiss core.
	augen-gneiss Book article from: A Dictionary of Earth Sciences augen-gneiss A medium- to coarse-grained, banded, regional metamorphic...mineral phases constituting the rock. The best-developed augen-gneisses are formed by high-grade metamorphism of aluminous sediments. See also GNEISS .