Geochemical constraints on core formation in the Earth | Zendy

J. H. Jones | Zendy; M. J. Drake | Zendy

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Geochemical constraints on core formation in the Earth

Author(s) -

J. H. Jones,

M. J. Drake

Publication year - 1986

Publication title -

nature

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 15.993

H-Index - 1226

eISSN - 1476-4687

pISSN - 0028-0836

DOI - 10.1038/322221a0

Subject(s) - silicate , mantle (geology) , earth (classical element) , geology , core (optical fiber) , geochemistry , earth science , mineralogy , chemistry , materials science , physics , organic chemistry , composite material , mathematical physics

New experimental data on the partitioning of siderophile and chalcophile elements among metallic and silicate phases may be used to constrain hypotheses of core formation in the Earth. Three current hypotheses can explain gross features of mantle geochemistry, but none predicts siderophile and chalcophile element abundances to within a factor of two of observed values. Either our understanding of metal–silicate interactions and / or our understanding of the early Earth requires revision.

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