A model to explain the occurrence of platinum- and palladium-rich ophiolite complexes

Prichard, Hazel Margaret, Lord, Richard A. and Neary, C. R. 1996. A model to explain the occurrence of platinum- and palladium-rich ophiolite complexes. Journal of the Geological Society 153 (2) , pp. 323-328. 10.1144/gsjgs.153.2.0323

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Abstract

During the last ten years significant concentrations of Pt and Pd (more than 1000 ppb Pt + Pd) have been reported from several ophiolite complexes including Shetland, Leka, Al 'Ays, Zambales, Ceruja and Thetford. Similar studies on others, including those in Cyprus and Oman, have failed to reveal equivalent concentrations. Here we compare the characteristics of these ophiolite sequences and propose that Pt- and Pd-rich ophiolites contain thick sulphur-bearing ultramafic crustal units that crystallized from PGE-rich boninitic magmas produced by excess partial melting in a water-rich subduction zone.

Item Type:	Article
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	Q Science > QE Geology
Publisher:	Geological Society of London
ISSN:	0016-7649
Last Modified:	10 Oct 2017 13:20
URI:	https://orca.cardiff.ac.uk/id/eprint/11991

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