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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 McGoldrickThe 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 SymposiumEditors
C.J.Stanley et.al.Pagination
873-876ISBN
905809068XDepartment/School
School of Natural SciencesPublisher
A.A. BalkemaPlace of publication
RotterdamEvent title
Fifth biennial SGA Meeting and tenth quadrennial IAGOD SymposiumEvent Venue
LondonDate of Event (Start Date)
1999-08-22Date of Event (End Date)
1999-08-25Repository Status
- Restricted