Influence of Cr on REE Partitioning between Garnet and Silicate Melt

Partitioning of REE between garnet and basaltic melt was performed at 7. 5GPa and 1900∼2090°C, considering the possible influence of Cr. It was confirmed that compatibility of light REE in Cr-bearing garnet increases significantly as comparing with that of Cr-free system, but no evident variation wa...

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Bibliographic Details
Published inThe review of high pressure science and technology Vol. 7; p. 92
Main Authors Wang, W, Sueno, S, Takahashi, E
Format Journal Article
LanguageEnglish
Published Tokyo Japan Science and Technology Agency 01.01.1998
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Summary:Partitioning of REE between garnet and basaltic melt was performed at 7. 5GPa and 1900∼2090°C, considering the possible influence of Cr. It was confirmed that compatibility of light REE in Cr-bearing garnet increases significantly as comparing with that of Cr-free system, but no evident variation was detected for heavy REE. Based on the newly established partition coefficients, it is concluded that the light REE-enriched garnet inclusions in diamonds have not achieved equilibrium with metasomatic melts. Bulk mixing and subsequent recrystallization could be the main processes for the mineral inclusions in diamonds.
ISSN:0917-639X
1348-1940