Park, Jung-Woo; Campbell, Ian; Arculus, Richard
We have measured the platinum group element (PGE) and Re concentrations of arc-type lavas from the Pual Ridge and the surrounding area in the Eastern Manus Basin. These magmas followed an Fe-enrichment trend to produce a wide range of compositions with MgO varying between 8 and 0.1. wt.%. We found distinct differences in the PGE geochemistry of the high (>3. wt.% MgO) and the low-Mg lavas (<3. wt.% MgO). During the early stages of fractionation, the concentrations of Pd, Cu, Au and Re increase...[Show more]
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