Formation of magmatic sulfide deposits in arcs by reduction of oxidized basalt

Andrew George Tomkins, Kyle Rebryna, Roberto Ferrez Weinberg, Bruce Franklin Schaefer

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    A region of magma mingling and mixing, containing magmatic sulfide mineralization, within a magmatic arc cross section in Hokkaido, Japan, is examined to explore the consequences of chemical equilibration between mantle-derived arc basalts and crust-derived graphite-bearing tonalites. Reduction of oxidized arc basalt, driven by buffering with contaminant graphite, is shown to be a viable mechanism for causing sulfide oversaturation.
    Original languageEnglish
    Title of host publicationAbstracts, 11th International Platinum Symposium, 21-24 June 2010, Sudbury, Ontario, Canada
    EditorsG H Brown, P J Jugo, C M Lesher, J E Mungall
    Place of PublicationSudbury Canada
    PublisherOntario Geological Survey
    Pages1 - 4
    Number of pages4
    ISBN (Print)9781443533140
    Publication statusPublished - 2010
    EventInternational Platinum Symposium - Sudbury Ontario Canada, Sudbury Canada
    Duration: 1 Jan 2010 → …


    ConferenceInternational Platinum Symposium
    CitySudbury Canada
    Period1/01/10 → …

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