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Abstract
Abstract Minor Kuroko-type deposits occur within a group of acidic volcanic rocks in northeast Vanua Levu, Fiji. Six prospects are described and their relationship to each other and the associated volcanic activity discussed. Variations exist between deposits formed at or near the surface around exhalative centres and those occurring at depth as epigenetic vein and stockwork deposits. Fijian volcanism and ore deposition seem to be closely associated with a tensional—transform regime of regional dimensions rather than subduction. The ore fluids are thought to have separated from cooling felsic magma and mixed with seawater on their way to the surface.
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