Authors / CoAuthors
Huston, D.L. | Scrimgeour, I. | Close, D. | Tyler, I. | Sheppard, S. | Hutton, L. | Withnall, I.W. | Korsch, R. | Henson, P.
Abstract
This abstract discusses the metallogeny of the North Australian Craton and possible links to the assembly and breakup of Nuna, the Paleoproterozoic supercontinent. Before ~1750 Ma, deposits such as VHMS, porphyry Cu and orthomagmatic Cu-Ni deposits formed during the assembly of the NAC as the Kimberley, Numil-Abingdon and Aileron provinces converged and were then accreted onto the NAC. These deposits were formed in arc and backarcs, which generally involved local extension, within overall convergent geodynamic settings. After ~1750 Ma, the metallogeny changed, with deposits such as Broken Hill- and Mt Isa-type Zn-Pb-Ag deposits, unconformity U and iron oxide Cu-Au(U) deposits forming largely during extension associated with the breakup of Nuna.
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nonGeographicDataset
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70045
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- External Publication
- ( Theme )
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- geodynamics
- ( Theme )
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- metallogenesis
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
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2010-01-01T00:00:00
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