TY - JOUR
T1 - A model to explain the occurrence of platinum- and palladium-rich ophiolite complexes
AU - Prichard, H. M.
AU - Lord, R. A.
AU - Neary, C. R.
PY - 1996/3/1
Y1 - 1996/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0029730940&partnerID=8YFLogxK
U2 - 10.1144/gsjgs.153.2.0323
DO - 10.1144/gsjgs.153.2.0323
M3 - Article
AN - SCOPUS:0029730940
SN - 0016-7649
VL - 153
SP - 323
EP - 328
JO - Journal of the Geological Society
JF - Journal of the Geological Society
IS - 2
ER -