ORCID Profile
0000-0002-3677-728X
Current Organisation
CSIRO
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Resource geoscience | Mineralogy and crystallography | Exploration geochemistry | Geology
Publisher: Elsevier BV
Date: 11-2016
Publisher: Elsevier BV
Date: 11-2017
Publisher: Mineralogical Society of America
Date: 03-2017
DOI: 10.2138/AM-2017-5754
Publisher: Mineralogical Society of America
Date: 04-2017
Publisher: Springer Science and Business Media LLC
Date: 29-04-2022
DOI: 10.1038/S41467-022-30107-Y
Abstract: Much of the world’s supply of battery metals and platinum group elements (PGE) comes from sulphide ore bodies formed in ancient sub-volcanic magma plumbing systems. Research on magmatic sulphide ore genesis mainly focuses on sulphide melt-silicate melt equilibria. However, over the past few years, increasing evidence of the role of volatiles in magmatic sulphide ore systems has come to light. High temperature-high pressure experiments presented here reveal how the association between sulphide melt and a fluid phase may facilitate the coalescence of sulphide droplets and upgrade the metal content of the sulphide melt. We propose that the occurrence of a fluid phase in the magma can favour both accumulation and metal enrichment of a sulphide melt segregated from this magma, independent of the process producing the fluid phase. Here we show how sulphide-fluid associations preserved in the world-class Noril’sk-Talnakh ore deposits, in Polar Siberia, record the processes demonstrated experimentally.
Publisher: Geological Society of London
Date: 05-02-2014
Publisher: Elsevier BV
Date: 07-2016
Publisher: Elsevier BV
Date: 09-2016
Publisher: Proceedings of the National Academy of Sciences
Date: 21-02-2017
Abstract: The Noril’sk deposits represent one of the most valuable metal concentrations on Earth and are associated with the world’s largest outpouring of mafic magma. Mass release of nickel into the atmosphere during ore formation has been postulated as one of the triggers for the Permian–Triassic Mass Extinction Event, by promoting the activity of the marine Archaea methanosarcina with catastrophic greenhouse climatic effects. The missing link has been understanding how nickel, normally retained at depth in magmatic minerals, could have been mobilized into magmatic gases. The flotation of magmatic sulfides to the surface by gas bubbles was suggested as a possible mechanism. Here, we provide evidence of physically attached nickel-rich sulfide droplets and former gas bubbles, frozen into the Noril’sk ores.
Publisher: Society of Economic Geologists
Date: 17-06-2016
Publisher: Geological Society of America
Date: 20-10-2016
DOI: 10.1130/G37977.1
Publisher: Elsevier BV
Date: 2016
Publisher: Society of Economic Geologists
Date: 23-01-2015
Publisher: Oxford University Press (OUP)
Date: 06-2016
Publisher: Oxford University Press (OUP)
Date: 12-2015
Publisher: Elsevier BV
Date: 11-2017
Publisher: Springer Science and Business Media LLC
Date: 08-09-2016
Start Date: 2023
End Date: 12-2027
Amount: $5,000,000.00
Funder: Australian Research Council
View Funded Activity