Target Exploration Initiative South Australia (TEiSA) – Musgrave Block uncovered

Domenic Calandro; Stephen Hore

doi:10.1071/ASEG2001ab014

ISSN: 2202-0586
E-ISSN:

oa Target Exploration Initiative South Australia (TEiSA) – Musgrave Block uncovered
Authors Domenic Calandro^a and Stephen Hore^b
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^a Office of Minerals and Energy SA, , Australia, [email protected] ^b Office of Minerals and Energy SA, , Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2001, Issue ASEG2001 - 15th Geophysical Conference, Dec 2001, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2001ab014
- Published online: 01 Dec 2001

Abstract

Following extensive negotiation and consultation with Anangu Pitjantjatjara (AP) stakeholders, Minerals and Energy Resources South Australia (MER) obtained permission to undertake a regional airborne geophysical program over the Mann, Woodroffe and Alberga 1:250, 000 map sheets within the Musgrave Block.

Commencing with the Woodroffe map sheet the surveys were flown at 400 metre line spacing and at a survey height of 80 metres.

The surveys provided an excellent opportunity for the AP stakeholders to view first hand the processes and mechanisms required to undertake a large regional airborne survey. As a result MER was further encouraged to continue the survey onto the adjoining map sheets of Mann and Alberga.

The result is a spectacular data set covering approximately 75% of the Giles Complex within the Musgrave Block. The new TEiSA data has provided an excellent insight into the geological structure of the region at a resolution never seen before. There is clear delineation of the mafic bodies and fault systems hidden beneath the shallow cover.

The radiometric "RGB" ternary image shows the contrasting geology clearly delineating such features as the Woodroffe Thrust Zone.

The digital terrain data provides good terrain detail successfully delineating the ranges and dune systems throughout the region.

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References

Coats R.P., 1963. The Geology of the Alberga 4-mile Military Sheet. Rep. Invest. Geol. Surv. South Australia, 22:26pp.
Major R.B., 1986. Field Geology Club of South Australia Inc. Excursion Notes Musgrave Block. South Australian Dept of Mines and Energy; Report Book 86/37 (unpublished)
Major R.B. and Conor C.H.H., 1993. Musgrave Block. In The Geology of South Australia Volume 1 The Precambrian. (Eds: Drexel, J.F., Preiss, W.V. and Parker, A.J., 1993). Geological Survey of South Australia Bulletin 54.
Nesbitt R.W., Goode A.D.T., Moore A.C. and Hopwood T.P., 1970. The Giles Complex, Central Australia: A stratified sequence of mafic and ultramafic intrusions. Geol. Soc. South Africa, Special Publication No. 1.
Smith R.J., 1979. An interpretation of magnetic and gravity data in the Musgrave Block. South Australian Dept of Mines and Energy; Report Book 79/103 (unpublished)
Thomson B.P., 1969. Precambrian crystalline basement, in Parkin L.W. (Ed). Handbook of South Australian Geology: 21-48, Geol. Surv. South Australia.
Thomson B.P., 1970. A Review of the Precambrian and Lower Palaeozoic tectonics of South Australia. Trans. R. Soc. S Aust. 94:193-221.
Thomson B.P., 1976. Musgrave Block - regional geology. In Leslie, R.B., Evans HJ. and Knight C.L. (Eds.), Economic Geology of Australia and Papua New Guinea, 1, Metals. Australas. Inst. Min. Metall, Melbourne, pp 451-454.
Tonkin D.G., 1991. The Geology & Mineral Potential of the Pitjantjatjara Lands of South Australia.DME RB91/103(Unpublished)
Webb A.W., 1983. Geochronology of the Musgrave Block. Mineral Resources Review - South Australian Department of Mines and Energy 155: 23-37.
Wilson A.F., 1969. The mineral potential of granulite terranes. Proc. Australas. Inst. Min. Metall, 231.

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Article Type: Research Article

Keyword(s): airborne; Giles Complex; Musgrave Block

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