Fractionation of the platinum-group elements during mantle melting

被引：266

作者：

Bockrath, C ^{[1
]}

Ballhaus, C ^{[1
]}

Holzheid, A ^{[1
]}

机构：

[1] Univ Munster, Inst Mineral, D-48149 Munster, Germany

来源：

SCIENCE | 2004年 / 305卷 / 5692期

关键词：

D O I：

10.1126/science.1100160

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1951 / 1953

页数：3

共 29 条

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