Magnetotelluric investigation complement multi-disciplinary geophysical data

Jingming Duan; Peter Milligan; Tanya Fomin; Jenny Maher; Graham Heinson; Stephan Thiel

doi:10.1071/ASEG2012ab389

ISSN: 2202-0586
E-ISSN:

oa Magnetotelluric investigation complement multi-disciplinary geophysical data
Authors Jingming Duan^a, Peter Milligan^b, Tanya Fomin^c, Jenny Maher^d, Graham Heinson^e and Stephan Thiel^f
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^a Geoscience Australia, GPO Box 378 ACT 2601, , Australia, [email protected] ^b Geoscience Australia, GPO Box 378 ACT 2601, , Australia, [email protected] ^c Geoscience Australia, GPO Box 378 ACT 2601, , Australia, [email protected] ^d Geoscience Australia, GPO Box 378 ACT 2601, , Australia, [email protected] ^e School of Earth and Environment ScienceThe University of Adelaide, Adelaide, 5005, , Australia, [email protected] ^f School of Earth and Environment ScienceThe University of Adelaide, Adelaide, 5005, , Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2012, Issue ASEG2012 - 22nd Geophysical Conference, Dec 2012, p. 1 - 3
DOI: https://doi.org/10.1071/ASEG2012ab389
- Published online: 01 Dec 2012

Abstract

Summary

As part of the Australian Government’s Onshore Energy Security Program, Geoscience Australia has acquired magnetotelluric data along 12 deep crustal seismic reflection transects in Australia.

The magnetotelluric projects, which total more than 640 stations over 3700 km in distance, have been undertaken by Geoscience Australia in collaboration with state and territory geoscience agencies. Broadband and long period MT data have been acquired for investigating geological structures from the shallow surface to upper mantle.

These data, along with the deep seismic reflection, magnetic, gravity and geological data form the basis for multi-disciplinary investigations of crustal architecture, and energy and mineral potential, providing precompetitive information to industry and researchers.

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References

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Caldwell, T.G., Bibby, H.M., and Brown, C., 2004. The magnetotelluric phase tensor. Geophysical Journal International, 158, 457–457.
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Chave, A.D., and Thomson, D.J., 2004. Bounded influence magnetotelluric response function estimation. Geophysical Journal International, 157(3), 988–1006.
Korsch, R. J., Blewett, R. S., Close, D. F., Scrimgeour, I. R., Huston, D. L., Kositcin, N., Whelan, J. A., Carr, L. K. and Duan, J., 2011. Geological interpretation and geodynamic implications of the deep seismic reflection and magnetotelluric line 09GA-GA1: Georgina basin-Arunta region, Northern Territory. Northern Territory Geological Survey, Record 2011.
Marti, A., Queraltand, P., and Ledo, J., 2009. WALDIM: a code for the dimensionality analysis of magnetotelluric data using the rotational invariants of the magnetotelluric tensor. Computers&Geosciences, 35, 2295 - 2303.
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Rodi, W., and Mackie, R.L., 2001. Nonlinear conjugate gradients algorithm for 2-D magnetotelluric inversion. Geophysics, 66, 174–187.
Tikhonov, A.N., 1950. The determination of the electrical properties of deep layers of the Earth’scrust. Doklady Academii Nauk. SSSR, 73, 295–297.
Vozoff, K., 1991. The Magnetotelluric Method. In: Nabighian, M.N., editor, Electromagnetic methods in applied geophysics. Society of Exploration Geophysicists, 641–711.

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Article Type: Research Article

Keyword(s): Australia; energy; magnetotelluric; mineral; multi-disciplinary

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