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Re–Os dating of the Radio Hill Ni–Cu deposit, west Pilbara Craton, Western Australia

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A Re–Os isochron age is reported for massive sulfides from near the basal contact of the Radio Hill layered mafic‐ultramafic intrusion in the west Pilbara Craton, Western Australia. The isochron age is 2892 ± 34 Ma (mean square of weighted deviates = 1.06) with an initial 187 Os/ 188 Os = 0.1265 ± 0.0028. This age is in agreement with the ages of other nearby layered mafic intrusions that are considered to have a similar geological evolution to the Radio Hill Intrusion.
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Keywords: Archaean; Pilbara Craton; geochronology; layered mafic intrusions; nickel‐copper mineralisation; rhenium‐osmium dating

Document Type: Research Article

Affiliations: 1: Australian Crustal Research Centre, Monash University, PO Box 28E, Vic. 3800, Australia 2: Division of Earth Sciences, National Science Foundation, 4201 Wilson Boulevard, Arlington, VA, 22230, USA 3: Australian Geological Survey Organisation, GPO Box 378, Canberra, ACT 2601, Australia

Publication date: February 1, 2001

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