A Fluid Inclusion and Isotopic Study of the Mineralization in the Zinc-Rich Burketown Mineral Field, Northern Australia

Paul A. Polito; T. Kurt Kyser; Suzanne D. Golding; Peter N. Southgate

doi:10.1071/ASEG2006ab139

ISSN: 2202-0586
E-ISSN:

oa A Fluid Inclusion and Isotopic Study of the Mineralization in the Zinc-Rich Burketown Mineral Field, Northern Australia
Authors Paul A. Polito, T. Kurt Kyser, Suzanne D. Golding and Peter N. Southgate
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2006ab139
- Published online: 01 Dec 2006

Abstract

The ca. 1575 Ma Century Zn-Pb deposit and the 47 near-by discordant Zn-Pb lode deposits of the Burketown Mineral Field, northern Australia host ore and gangue minerals that have not been overprinted by deformation associated with the the 1610 – 1520 Ma Isan Orogeny (Page and Bell, 1986; Blake, 1987), which obliterated many of the primary textural features at the Mt Isa, Hilton and George Fisher deposits. The Burketown Mineral Field deposits, which are hosted in shales and siltstones belonging to the Isa Superbasin, comprise sphalerite, pyrite, carbonate, quartz, galena, chalcopyrite and minor illite that lend themselves to isotopie and fluid inclusion studies that cannot be performed on the deposits to the south. For instance, there are no published O-H isotopie data from any of the known Zn-Pb deposits in the Mt Isa Basin and very limited, pre-Isan ⁴⁰Ar/³⁹Ar and fluid inclusion data (Rohrlach et al., 1998). A paragenetic and isotopie study of Century and 14 of the discordant lode deposits combined with published Pb/Pb model ages reveal that multiple fluid events spanning a period lasting ca. 400 million years since the initial formation of the Century deposit are preserved in this area.

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2026-01-20

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References

Andrews, S.J., 1998, Stratigraphy and depositional setting of the Upper McNamara Group, Lawn Hill Region, Northwest Queensland: Economic Geology, v.93, p. 1132 - 1152.
Blake, D.H., 1987, Geology of the Mount Isa Inlier and environs, Queensland and Northern Territory; BMR Bulletin 225, 83 pp
Broadbent, G.C., Myers, R.E., and Wright, J.V., 1998, Geology and origin of shale-hosted Zn-Pb-Ag mineralization at the Century deposit, northwest Queensland, Australia: Economic Geology v. 93, p. 1264-1294.
Carr, G.R., Sun, S-S., Page R.W. and Hinman, M., 1996, Recent developments in the use of lead isotope model ages in Proterozoic terrains, in Baker, T., Rotherham, J., Richmond, J., Mark, G., and Williams, P., eds., MIC’96: New Developments in Metallogenic Research: The McArthur, Mt Isa, Cloncurry Minerals Province: Townsville, Economic Geology Research Unit Contribution, v. 55, p. 99-103.
Jackson, M.J., Scott, D.L. & Rawlings D.J. 2000, Stratigraphic framework for the Leichhardt and Calvert Superbasins: review and correlations of the pre-1700 Ma successions between Mt Isa and McArthur River. Australian Journal of Earth Sciences, v. 47, p 381 – 403.
Kelso, I., Briggs, T. and Basford, P., 2001, The Century zinc deposit – geological update: AIG Journal online, January 2001, p. 1 – 3.
Page, R.W. and Bell, T.H., 1986, Isotopie and structural responses of granite to successive deformation and metamorphism: Journal of Geology, v. 94, p. 365 – 379.
Polito, P.A., Kyser, T.K., Southgate, P.N. and Jackson, M.J., 2003,
Rohrlach, B.D., Fu, M. and Clarke, J.D.A., 1998, Geological setting, paragenesis and fluid history of the Walford Creek Zn-Pb-Cu-Ag prospect, Mt Isa Basin, Australia: Australian Journal of Earth Sciences, v. 45, 63 - 81.
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Waltho, A.E., Allnutt, S.L. and Radojkovic, A.M., 1993, Geology of the Century zinc deposit, Northwest Queensland: Australasian Institute of Mining and Metalurgy World Zinc ’93, Conference Proceedings, Hobart, October 10 – 13, p. 111 – 129.

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Article Type: Research Article

Keyword(s): Australia; Century; fluid inclusions; Lawn Hill Platform; lead; Mount Isa; oxygen and hydrogen isotopes; Silver King; Watson’s Lode; zinc

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oa A Fluid Inclusion and Isotopic Study of the Mineralization in the Zinc-Rich Burketown Mineral Field, Northern Australia

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