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Enrichment of Rh, Ru, Ir and Os in Cr spinels from oxidized magmas: evidence from the Ambae volcano, Vanuatu

Park, Jung-Woo; Campbell, Ian; Eggins, Stephen


Experimental studies, performed under oxidized conditions (fO2>QFM+2, where QFM is quartz-fayalite-magnetite oxygen buffer), have shown that Rh, Ru, Ir and Os are strongly compatible with Cr spinel, whereas empirical studies of Cr spinels from ultramafic-mafic rocks suggest that the experimental results may overestimate the partition coefficients. We report laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analyses of platinum-group elements (PGE), Au and Re abundances in...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Geochimica et Cosmochimica Acta Supplement
DOI: 10.1016/j.gca.2011.11.018


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