Geoscientific investigation of a remanent anomaly - Teetulpa, South Australia

Clive Foss; Gary Reed; Tim Keeping; Philip Heath

doi:10.1071/ASEG2015ab205

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Geoscientific investigation of a remanent anomaly - Teetulpa, South Australia
Authors Clive Foss^a, Gary Reed^b, Tim Keeping^c and Philip Heath^d
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^a CSIRO Mineral Resources Flagship Riverside Corporate Park 51 Delhi Road, North Ryde, NSW, 1670, , Australia, [email protected] ^b Geological Survey of South Australia, 4/101 Grenfell St Adelaide, 5000, [email protected] ^c Geological Survey of South Australia, 4/101 Grenfell St Adelaide, 5000, [email protected] ^d Geological Survey of South Australia, 4/101 Grenfell St Adelaide, 5000, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab205
- Published online: 01 Dec 2015

Abstract

We investigate a small (100 metre width) 150 nT amplitude magnetic anomaly delineated in a high-resolution aeromagnetic survey in the Teetulpa Goldfield of the southern Flinders Ranges. We believe that the anomaly is due to a kimberlite pipe, part of a field already known in the general region. As is quite common with kimberlites, the magnetization is clearly dominated by remanence. Modelling the anomaly reveals that the source is very shallow, and would have outcropped at some stage. Follow-up ground geophysical, geochemical and biogeochemical investigations are planned to establish a methodology for integrated studies as follow-up to high resolution aeromagnetic surveys.

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References

Chen, J., Chouteau, M., and Keating, P., 2009. Joint inversion of the magnetic anomaly due to a kimberlite pipe and its analytic signal. 11th SAGA Biennial Technical Meeting and Exhibition Swaziland, P. 222-226.
Colchester, D.M., 1972. A preliminary note on kimberlite occurences in South Australia. Geological Society of Australia. Journal, 19(3):383-386.
Fowler, J.A., Grutter, H.S., Kong, J.M., and Wood, B.D., 2001, Diamond Exploration in Northern Ontario with Reference to the Victor Kimberlite, Near Attawapiskat. Exploration Mining Geology, Vol. 10, P. 67-75.
Keating, P., and Sailhac, P., 2004. Use of the analytic signal to identify magnetic anomalies due to kimberlite pipes. Geophysics, Vol. 69, P. 180-190.
Macnae, J.C., 1979, Kimberlites and exploration geophysics. Geophysics, Vol. 44, P. 1395-1416.
Morris, B.J. and Horn, C.M., 1990. Review of gold mineralisation in the Nackara Arc. Mines and Energy Review, South Australia, 157:51-58.
BACKGROUND READING
Hou, B., Frakes, L.A., and Alley, N.F. Development of geoscientific models for exploration in Tertiary palaeochannels draining the north-western Gawler Craton, SA. South Australian Department of Mines and Energy, Report Book, RB 2001/21.

/content/journals/10.1071/ASEG2015ab205

Article Type: Research Article

Keyword(s): aeromagnetic anomaly remanent magnetization kimberlite diamond

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