Fluid and metal sources in the Mt Carbine tungsten deposit, north Queensland, Australia

N. C. Higgins, D. L. Forsythe, S. S. Sun, A. S. Andrew

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    2 Citations (Scopus)

    Abstract

    Paragenetic, fluid-inclusion, stable isotope, and 87Sr/86Sr and 143Nd/144Nd isotope studies of the Mt Carbine tungsten deposit in north Queensland provide information on the sources of the mineralizing components and record the history of fluid-rock interaction during the hydrothermal process. The ore minerals, wolframite and scheelite, are contained in quartz veins which post-date the major deformations in the Siluro-Devonian Hodgkinson formation. Mineralization was immediately preceded by the emplacement of the Mossmann batholith (280 + or - 7 m.y.). Two major stages of mineralization are present and separated by a brittle fracturing episode. The stable isotope, Sr and Nd isotope data suggest that the ore fluids during stage I and most of stage II mineralization were a mixture of magmatic water and non-magmatic water (connate or metamorphic) which had experienced a long residence time and had extensively exchanged with the sediments at high T. Subsequent mineralization events were dominated by fluids of meteoric derivation with a short residence time. The data imply that other solutes such as W, were probably derived in minor part from local country rock sources with the major contribution coming from a magmatic source related to the granite batholith. -J.M.H.

    Original languageEnglish
    Title of host publicationPacific Rim congress 87. Proc. international congress
    Place of PublicationParkville, VIC
    PublisherAustralasian Institute of Mining and Metallurgy
    Pages173-177
    Number of pages5
    ISBN (Print)0949106151
    Publication statusPublished - 1987
    Event Proceedings Pacific Rim Congress 87 (Australasian Institute of Mining and Metallurgy) - Parkville, Vic, Australia
    Duration: 26 Aug 198729 Aug 1987

    Conference

    Conference Proceedings Pacific Rim Congress 87 (Australasian Institute of Mining and Metallurgy)
    CountryAustralia
    CityParkville, Vic
    Period26/08/8729/08/87

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