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Abstract

The metallic ore deposits of west ern Tasmania occur in Lower Palaeozoic rocks which appear to represent two tectonic phases or cycles , described here as the Tyennan and Ordovician-Devonian phases . Reconstruct ions indicate that during each phase Tasmania formed part of Andean - type continental margins flanking the AustraliaAntarctica craton. Comparisons with the mineralization of the Andean and similar orogenic belts imply a potential in western Tasmania for porphyry coppers magnetite skarns polymetallic veins , massive sulphides, tin- silver, and carbonate-lead- zinc deposits. Post-Palaeozoic erosion probably reduces the list to the last three oretypes , each of which is already recognised. The probability of further discoveries is reviewed , particularly in the light of new ideas , on the genesis of massive-sulphide deposits .

Item Type:	Article
Authors/Creators:	Solomon, M
Keywords:	Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
DOI / ID Number:	https://doi.org/10.26749/rstpp.111.1.129
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	Edited by M.R. Banks and J.B. Kirkpatrick. - Copyright Royal Society of Tasmania
Item Statistics:	View statistics for this item

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