The geophysics of the White Dam deposit, near Olary, South Australia

Skye Bargman; Stephen Busuttil

doi:10.1071/ASEGSpec12_11

Geophysical Signatures of South Australian Mineral Deposits

ISSN: 2202-0586
E-ISSN:

oa The geophysics of the White Dam deposit, near Olary, South Australia
Authors Skye Bargman and Stephen Busuttil
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2003, Issue Geophysical Signatures of South Australian Mineral Deposits, Dec 2003, p. 127 - 134
DOI: https://doi.org/10.1071/ASEGSpec12_11
- Published online: 01 Dec 2003

Abstract

The White Dam gold-copper prospect is located 31 km northeast of the township of Olary in South Australia. It is estimated to contain approximately 230,000 oz Au, within a resource of 7 Mt at 1 g/t Au. Mineralisation is stratabound and hosted in biotite-enriched leucocratic gneiss, interpreted to be part of the Palaeoproterozoic Curnamona Group. A thin veneer of soil cover blankets most of the deposit area.

White Dam is a geochemical discovery. It was first evident on a regional soil sampling survey acquired in the early 1990s. Since its discovery, several geophysical surveys have been carried out over the deposit. These include, in-situ physical property logging, magnetics, gravity, IP and resistivity. This work has shown that the mineralisation does not have significant physical property contrasts with the host sequence. However, contrasts in density, magnetisation and IP effect within the host sequence allow useful geological information to be obtained.

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2003-12-01

2026-01-23

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References

Ashley, P.M., Conor, C.H.H. and Skirrow, R.G., 1998. Geology of the Olary Domain, Curnamona Province, South Australia. Field guidebook to Broken Hill Exploration Initiative excursion 13-15 October 1998.
Bargman, S., 1999. Magnetic Petrophysics and Modelling, White Dam Gold Prospect, Olary, South Australia. University of Adelaide, B.Sc Honours thesis (unpublished).
Conor, C.H.H., 2000. Definition of major sedimentary and igneous units of the Olary Domain, Curnamona Province. MESA Journal, 19, 51-56.
Cordon, E.L., 1998. An Investigation into the Genesis of Mineralisation at the White Dam Prospect, Olary Block, South Australia. University of Adelaide, B.Sc Honours thesis (unpublished).
Croxford, N.J.W., 1998. Petrology Report on White Dam, Olary Block, SA: Holes 15, 16 and 17. Report No. 993, Rockco Pty. Ltd.
Jessell, M.W., Valenta, R.K., Jung, G., Cull, J.P and Geiro, A.A., 1994. Structural geophysics. Exploration Geophysics, 24, 599-602.
McGeough, M and Anderson J.A., 1998. Discovery of the White Dam Au-Cu Mineralisation. AGSO Record 1998/25, 69-71.
Prowse, C.K., 2001. 3D Modelling and Resource Estimation - White Dam Prospect (EL 2031 Drew Hill) and Vertigo Prospect (EL 2630 Bulloo South). Internal MIM Exploration report.
Sheard, S.N., 1998. MIMDAS - A new direction in geophysics (abstract). Australian Society of Exploration Geophysicists - Preview, 76, 104.

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Article Type: Research Article

Keyword(s): Copper; Curnamona Province; electromagnetics; gold; gravity; induced polarisation; magnetics; MIMDAS; Olary SI54-2; Proterozoic; resistivity; Willyama Supergroup

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