Fractionation of the Platinum-Group Elements During Mantle Melting-Reference-Cited by-同舟云学术

Fractionation of the Platinum-Group Elements During Mantle Melting

Published:2004-09-24 Issue:5692 Volume:305 Page:1951-1953
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bockrath Conny¹,Ballhaus Chris¹,Holzheid Astrid¹

Affiliation:

1. Institut für Mineralogie, Universität Münster, Corrensstrasse 24, 48149 Münster, Germany.

Abstract

Experiments in sulfide-silicate systems demonstrate that two sulfide phases are stable in the asthenospheric upper mantle: a crystalline osmium-iridiumruthenium–enriched monosulfide and a rhodium-platinum-palladium–enriched sulfide melt. During silicate melt segregation, monosulfide stays in the solid residue, dominating the noble metal spectrum of residual mantle. The sulfide melt is entrained as immiscible droplets in the segregating silicate melt, defining the noble metal inventory of the basaltic component.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference35 articles.

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5. D. G. Pearson, D. Canil, S. B. Shirey, in Treatise of Geochemistry, vol. 2, The Mantle and Core, R. W. Carlson, Ed. (Elsevier, Amsterdam, 2003), p. 171.

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