The Tanami Deep Seismic Reflection Experiment: a look under the surface of a major gold province in northern Australia

David Huston; Leon Bagas; Patrick Lyons; Tim Barton; Bruce Goleby; Leonie Jones; Wade Johnston; David W. Johnstone; Leon Vandenberg; Russell Korsch; Tim Smith

doi:10.1071/ASEG2006ab054

ISSN: 2202-0586
E-ISSN:

oa The Tanami Deep Seismic Reflection Experiment: a look under the surface of a major gold province in northern Australia
Authors David Huston^a, Leon Bagas^b, Patrick Lyons^c, Tim Barton^d, Bruce Goleby^e, Leonie Jones^f, Wade Johnston^g, David W. Johnstone^h, Leon Vandenbergⁱ, Russell Korsch^j and Tim Smith^k
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^a Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^b GSWA, 100 Plain Street, East, Perth, , 6004, [email protected] ^c Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^d ANSIR cl- Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^e ANSIR c/- Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^f Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^g Newmont Exploration Pty. Ltd., 10 Richardson Street, West, Perth, , 6005, [email protected] ^h ANSIR c/- Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ⁱ NTGS, PO Box 8760, Alice Springs, , 0871, Leon. [email protected] ^j Geoscience Australia, PO Box 378, Canberra, , ACT, , 2601, [email protected] ^k Tanami Gold N.L., 50 Colin Street, West, Perth, , 6005, [email protected]
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/ASEG2006ab054
- Published online: 01 Dec 2006

Abstract

Results from the Tanami Seismic reflection survey are extremely encouraging for researchers and explorers working in the Proterozoic Tanami region of Western Australia and the Northern Territory. The Tanami seismic reflection project, a joint project between Geoscience Australia (GA), the Northern Territory Geological Survey (NTGS), the Geological Survey of Western Australia (GSWA), Newmont Exploration Pty. Ltd. and Tanami Gold N.L., has defined the crostai architecture of the Tanami region and Proterozoic Arunta region, identified structural anomalies, which appear to control gold mineralisation and generated exploration targets. Main crustal-scale features include a major SE dipping suture that extends from the surface to the Moho and is interpreted as the boundary between the Tanami region and the Arunta Region; a partitioning of the crust into a less reflective upper crust and a more reflective middle to lower crust; a series of SE, NE and NW dipping shallow reflectors within the Tanami region that are interpreted as thrusts; shallow and relatively thin granitic bodies that are less than 10 km thick and a strong association between ore deposits and prospects and the location of crostai structural anomalies, including shallowly-dipping thrusts, pop-up structures and ramp anticlines.

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References

Bagas, L., Huston, D.L., and Anderson, J., in prep., Gold deposits in the Palaeoproterozoic Tanami Group, Western Australia: Mineralium Deposita.
Blake, D.H, Hodgson, LM. and Muhling, P.C., 1979, Geology of The Granites-Tanami Region. Bureau of Mineral Resources, Australia, Bulletin 197.
Crispe, A.J., Vandenberg, L.C., in prep., Geology of the Tanami Region, Northern Territory: Northern Territory Geological Survey Bulletin.
Crispe A.J, Vandenberg, L.C, and Scrimgeour, I.R., in press, Geological Framework of the Archaean and Palaeoproterozoic Tanami Region, Northern Teritory: Mineralium Deposita.
Cross, A.J, and Crispe, A.J., in press, SHRIMP U-Pb analyses of detrital zircon: A window to understanding the early Palaeoproterozoic development of the Tanami Basin, Northern Australia: Mineralium Deposita.
Cross, A.J, Fletcher, I.R, Crispe, A.J, Huston, D.L. and Williams, N., 2005, New constraints on the timing of deposition and mineralisation in the Tanami Group: Northern Territory Geological Survey Record, 2005-001.
Fraser G, 2003, Geological relationships between the Tanami and North Arunta regions: Evidence from 40Ar/39Ar geochronology: Northern Territory Geological Survey Record 2003-001.
Tanami Seismic Workshop Notes, 2006, The Tanami Seismic Research Project – Workshop Notes, Geoscience Australia, unpublished report.
Vandenberg, L.C, Crispe, A.J, Green, M.G, Johnstone, A., 2002, Mount Solitaire: Establishing Tanami-Tennant Links:Annual Geoscience Exploration Seminar (AGES 2002), Record of abstracts, Northern Territory Geological Survey Record, 2002-0003.
Wygralak, A.S. and Mernagh T.P., 2003, Hydrothermal fluids in the Tanami - north Arunta boundary zone: preliminary results: Northern Territory Geological Survey, Record 2003-001.

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Article Type: Research Article

Keyword(s): Arunta; crostai scale faults; mineral systems; Seismic reflection; Tanami

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