Fractionation of the Platinum-Group Elements During Mantle Melting

Details Fractionation of the Platinum-Group Elements During Mantle Melting Fractionation of the Platinum-Group Elements During Mantle Melting

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sci...305.1951b&link_type=abstract

Science, Volume 305, Issue 5692, pp. 1951-1953 (2004).

Computer Science

31

Scientific paper

Experiments in sulfide-silicate systems demonstrate that two sulfide phases are stable in the asthenospheric upper mantle: a crystalline osmium-iridium-ruthenium-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.

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