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

conference contribution
posted on 2023-05-24, 10:31 authored by Jones, D, Stuart BullStuart Bull, Peter McGoldrickPeter McGoldrick
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.

History

Publication title

Mineral Deposits: Processes to Processing, proceedings of the fifth biennial SGA Meeting and the tenth quadrennial IAGOD Symposium

Editors

C.J.Stanley et.al.

Pagination

873-876

ISBN

905809068X

Department/School

School of Natural Sciences

Publisher

A.A. Balkema

Place of publication

Rotterdam

Event title

Fifth biennial SGA Meeting and tenth quadrennial IAGOD Symposium

Event Venue

London

Date of Event (Start Date)

1999-08-22

Date of Event (End Date)

1999-08-25

Repository Status

  • Restricted

Socio-economic Objectives

Zinc ore exploration

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