Results 171 to 180 of about 5,793 (215)

Diamond Eclogite and Graphite Eclogite Xenoliths from Orapa, Botswana

1984
Abstract Twenty four diamond eclogites, four with both diamond and graphite and twenty graphite eclogites are described. All of the diamond-bearing rocks and most of the graphite eclogites contain minor amounts of Na 2 O in their garnet and K 2 O in their clinopyroxene and are classed as Group I eclogites (after MacGregor and Carter, 1970).
D.N. Robinson, J.J. Gurney, S.R. Shee
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Eclogites of the D'Entrecasteaux Islands

Contributions to Mineralogy and Petrology, 1992
Eclogitic rocks of the D'Entrecasteaux Islands, Papua New Guinea, are of three types: true eclogites of omphacite-garnet-rutile; retrogressed or S-stage eclogites in which some omphacite has altered to symplectites of albite and less-jadeitic clinopyroxene (or amphibole); and rocks that are eclogites in all respects except that clinopyroxene is ...
Hugh L. Davies, R. G. Warren
openaire   +1 more source

Melting of eclogite facies sedimentary rocks in the Belomorian Eclogite Province, Russia

Journal of Metamorphic Geology, 2016
AbstractThe eclogites exposed along northeastern boundary of the Belomorian orogen in the eastern Fennoscandian Shield were formed as a result of Mesoarchean–Neoarchean subduction and collision. As has been shown previously, the common protolith of the Salma‐type subduction‐related eclogite was oceanic layered gabbro.
K. A. Dokukina, M. V. Mints, A. N. Konilov   +2 more
openaire   +1 more source

Eclogites and eclogite-facies rocks

Chemical Geology, 1990
  +4 more sources

The paragenesis of kyanite-eclogites

Mineralogical Magazine and Journal of the Mineralogical Society, 1936
In Haüy's original definition of eclogite, the presence of kyanite as an accessory constituent was recognized, and it is apparent that he was familiar with examples from the Sau Alps and Styria. The best known of eclogites—those of the Bavarian Fichtelgebirge (e.g. Silberbach, Weissenstein, and Eppenreuth)—contain significant kyanite interspersed among
openaire   +1 more source

Stability of phengite and biotite in eclogites and characteristics of biotite- or orthopyroxene-bearing eclogites

Contributions to Mineralogy and Petrology, 2003
Stability of phengite and biotite in eclogite is discussed using petrological data of natural eclogites, and the observational data are examined by thermodynamic calculations. Generally, phengite is a major K phase in natural eclogite and is stable in wide range of bulk composition.
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Kyanite eclogites

Contributions to Mineralogy and Petrology, 1968
Kennedy, George C., Godovikov, Alexander A.   +1 more
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Nature and Origin of Eclogite Xenoliths From Kimberlites

Lithos, 2004
D E Jacob
exaly   +2 more sources

Eclogites in the oceanic crust

1994
In: Compagnoni R. e Messiga B. (eds.), Guide-book to the field excursion B1 "High pressure metamorphism in the Western Alps".
SCAMBELLURI, MARCO, RAMPONE, ELISABETTA
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Chapter 5. Eclogites and eclogites

1979
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