Browsing ELibrary by Subject "GARNET"

Now showing items 1-8 of 8

A CLASSIFICATION SCHEME FOR MANTLE-DERIVED GARNETS IN KIMBERLITE: A TOOL FOR INVESTIGATING THE MANTLE AND EXPLORING FOR DIAMONDS

Schulze D.J. (2003)

A new empirical method has been devised for classification of mantle-derived garnets in kimberlite. Simple chemical screens have been developed to distinguish between garnets from different parageneses, based on Mg, Fe, ...
A METHOD FOR CALCULATING EFFECTIVE BULK COMPOSITION MODIFICATION DUE TO CRYSTAL FRACTIONATION IN GARNET-BEARING SCHIST: IMPLICATIONS FOR ISOPLETH THERMOBAROMETRY

Evans T.P. (2004)

Quantitative P -T path determination in metamorphic rocks is commonly based on the variation in composition of growth-zoned garnet. However, some component of growth zoning in garnet is necessarily the result of an effective ...
CHARACTERIZATION OF TRACE ND AND CE SITE PREFERENCE AND COORDINATION IN NATURAL MELANITES: A COMBINED X-RAY DIFFRACTION AND HIGH-ENERGY XAFS STUDY

Quartieri S.; Boscherini F.; Chaboy J.; Dalconi M.C.; Oberti R.; Zanetti A. (2002)

Natural melanite garnets from carbonatitic rocks have been studied by a multitechnique approach based on both experimental (chemical, diffractometric and spectroscopic) methods and full-multiple scattering calculations of ...
METAMORPHIC EVOLUTION OF ECLOGITE AND ASSOCIATED GARNET-MICA SCHIST IN THE HIGH-PRESSURE METAMORPHIC MAKSYUTOV COMPLEX, URAL, RUSSIA

Schulte B.; Blumel P. (1999)

Metasedimentary garnet-mica schists are interlayered with metabasic garnet-omphacite schists and enclose eclogite boudins in the high-pressure metamorphic Maksyutov complex in the Southern Urals, Russia. These three rock ...
PETROGENETIC SIGNIFICANCE OF ORTHOPYROXENE-FREE GARNET + CLINOPYROXENE + PLAGIOCLASE ± QUARTZ-BEARING METABASITES WITH RESPECT TO THE AMPHIBOLITE AND GRANULITE FACIES

Pattison D.R.M. (2003)

Orthopyroxene-free garnet + clinopyroxene + plagioclase ± quartz-bearing mineral assemblages represent the paragenetic link between plagioclase-free eclogite facies metabasites and orthopyroxene-bearing granulite facies ...
SOME GARNET MICROSTRUCTURES: AN ILLUSTRATION OF THE POTENTIAL OF ORIENTATION MAPS AND MISORIENTATION ANALYSIS IN MICROSTRUCTURAL STUDIES

Prior D.J.; Wheeler J.; Peruzzo L.; Spiess R.; Storey C. (2002)

The microstructures of two contrasting garnet grains are mapped using automated electron backscatter diffraction. In both cases there is a very strong crystallographic preferred orientation, with measurements clustered ...
TRACE ELEMENT COMPOSITIONS OF MINERALS IN GARNET AND SPINEL PERIDOTITE XENOLITHS FROM THE VITIM VOLCANIC FIELD, TRANSBAIKALIA, EASTERN SIBERIA

Glaser S.M.; Foley S.F.; Günther D. (1999)

Peridotite xenoliths from the Bereya alkali picrite tuff in the Vitim volcanic province of Transbaikalia consist of garnet lherzolite, garnet-spinel lherzolite and spinel lherzolite varieties. The volcanism is related to ...
ПРОГРАДНЫЕ ПРЕОБРАЗОВАНИЯ ГАББРО-НОРИТОВ ПРИ ЭКЛОГИТИЗАЦИИ В ТЕМПЕРАТУРНОМ ИНТЕРВАЛЕ 600-700 °С

Кориковский С.П. (2005)

Эклогитизация габбро-норитов в интервале 600-700 °С приводит к образованию коронарных структур с участием омфацита, граната, метаморфического ортопироксена, роговой обманки, клино- цоизита, олигоклаза, шпинели и корунда, ...

Browsing ELibrary by Subject "GARNET"

Browsing ELibrary by Subject "GARNET"

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