Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4703051 | Geochimica et Cosmochimica Acta | 2012 | 23 Pages |
Abstract
Our results show that partitioning of Rh, Ru and Ir into Cr spinels increases with increasing oxygen fugacity, which suggests that the high concentrations of these elements in the Ambae Cr spinels are due to the high oxygen fugacity of the host magma. Therefore, Cr spinels may play an important role in controlling the concentrations of Rh and IPGEs during fractional crystallization of oxidized ultramafic-mafic magmas and during partial melting of oxidized arc mantle.
Related Topics
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Authors
Jung-Woo Park, Ian H. Campbell, Stephen M. Eggins,