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The Kamarga deposit: a large, low grade, stratabound zinc resource in the Proterozoic 'Carpentaria Zinc Belt' of northern Australia

Citation

Jones, D and Bull, SW and McGoldrick, PJ, The Kamarga deposit: a large, low grade, stratabound zinc resource in the Proterozoic 'Carpentaria Zinc Belt' of northern Australia, Mineral Deposits: Processes to Processing, proceedings of the fifth biennial SGA Meeting and the tenth quadrennial IAGOD Symposium, 22-25 August 1999, London, pp. 873-876. ISBN 905809068X (1999) [Conference Extract]


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Abstract

The Kamarga Zn-Pb deposit is a 50 million tonne resource of about 3 weight percent combined Zn+Pb, located about 200 km north of Mount Isa. It is hosted in gently south dipping evaporitic sediments of the Lower McNamara Group on the southern side of the Kamarga Dome. The deposit is stratabound and largely restricted to a triangular area of about two and a half square kilometres adjacent to a subsidary fault of a regional structure, the Barramundi Fault. Pyrite and sphalerite, the commonest sulphides, occur as veins, breccia cements, disseminations and massive replacements of host carbonates. Mineralisation is thought to have occurred when acid, moderately saline, hot fluids circulating through basement, in an actively extending tectonic regime, were channelled upwards through faults and reacted with sedimentary carbonate.

Item Details

Item Type:Conference Extract
Keywords:Kamarga Dome, Zn-Pb deposit, evaporitic sediments, Paleoproterozoic, Mesoproterozoic
Research Division:Earth Sciences
Research Group:Geology
Research Field:Ore Deposit Petrology
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Mineral Exploration
Objective Field:Zinc Ore Exploration
Author:Bull, SW (Dr Stuart Bull)
Author:McGoldrick, PJ (Dr Peter McGoldrick)
ID Code:70714
Year Published:1999
Deposited By:Research Division
Deposited On:2011-07-01
Last Modified:2012-10-17
Downloads:7 View Download Statistics

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