Geological and geochemical aspects of the Liontown VHMS deposit North Eastern Queensland

TL;DRAbstract

The Liontown VHMS deposit lies in the central portion of the 165km long, E-W trending, narrow belt of deformed Cambro-Ordovician marine sediments and volcanics known as the Mount Windsor subprovince of northeastern Queensland. Liontown is shown to be a volcanic-associated massive sulphide deposit comprising both seafloor exhalative and subhalative mineralisation. Metal zonation studies suggest the exhalative mineralisation was vented onto the seafloor on the edge of a paleo ridge and migrated down slope to the west and southeast. Sulphur, lead, oxygen and carbon isotope data is consistent with a VHMS parentage. The Liontown deposit is temporally associated with the change from dacitic to rhyolitic volcanism and may have a more shallow water setting than previously considered. The Carrington Lode at Liontown is a sub-seafloor replacement body interpreted to have formed by the eastward lateral migrat\i on of hydrothermal fluids preferentially through an ashy and feldspar bearing volcanic

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