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Core formation and the oxidation state of the Earth: Additional constraints from Nb, V and Cr partitioning

Abstract:

We have combined metal-silicate partitioning data from the literature with new experimental results at 1.5-8 GPa and 1480-2000 °C to parameterize the effects of pressure, temperature and composition on the partitioning of V, Cr and Nb between liquid Fe metal (with low S and C content) and silicate melt. Using information from the steelmaking literature to correct for interactions in the metal phase, we find that, for peridotitic silicate melts, metal-silicate partition coefficients are given ...

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Publication status:
Published

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Publisher copy:
10.1016/j.gca.2007.11.036

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Kilburn, MR More by this author
Journal:
GEOCHIMICA ET COSMOCHIMICA ACTA
Volume:
72
Issue:
5
Pages:
1415-1426
Publication date:
2008-03-01
DOI:
ISSN:
0016-7037
URN:
uuid:3ca7aac4-b196-4d31-9d2b-a8d782a6b895
Source identifiers:
163726
Local pid:
pubs:163726
Language:
English

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