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The magnetite crisis in the evolution of arc-related magmas and the initial concentration of Au, Ag and Cu

Jenner, Frances; O'Neill, Hugh; Arculus, Richard; Mavrogenes, John


The association of large Au-Cu-Ag ore deposits with convergent margins is commonly attributed to the higher content of chalcophile elements in the parental magmas generated at subduction zones compared with mid-ocean ridges. We present new geochemical data for arc-like, relatively oxidized mantle-derived basalt to rhyolite magmas from the Pual Ridge and vicinity, Eastern Manus Basin, which show that the initial abundances of base and precious metals in the parental basalts are similar to those...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Journal of Petrology
DOI: 10.1093/petrology/egq063


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