Passive seismic studies show configuration of Paleoproterozoic subduction zones and their role in craton assembly in Western Australia

Ruth E Murdie; Huaiyu Yuan; Michael C Dentith; Simon P Johnson; Klaus Gessner

doi:10.1071/ASEG2016ab151

25th International Conference and Exhibition – Interpreting the Past, Discovering the Future

ISSN: 2202-0586
E-ISSN:

oa Passive seismic studies show configuration of Paleoproterozoic subduction zones and their role in craton assembly in Western Australia
Authors Ruth E Murdie^a, Huaiyu Yuan^b,c,d, Michael C Dentith^e, Simon P Johnson^f and Klaus Gessner^g
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^a Geological Survey of Western Australia, Department of Mines and Petroleum, , East Perth, , WA, 6004, [email protected] ^b Geological Survey of Western Australia, Department of Mines and Petroleum, , East Perth, , WA, 6004 ^c ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS), Macquarie University, , North Ryde, NSW, 2109 ^d Centre for Exploration Targeting (CET), The University of Western Australia, , Crawley, WA, 6009, [email protected] ^e Centre for Exploration Targeting (CET), The University of Western Australia, , Crawley, WA, 6009, [email protected] ^f Geological Survey of Western Australia, Department of Mines and Petroleum, , East Perth, , WA, 6004, [email protected] ^g Geological Survey of Western Australia, Department of Mines and Petroleum, , East Perth, , WA, 6004, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2016, Issue 25th International Conference and Exhibition – Interpreting the Past, Discovering the Future, Dec 2016, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2016ab151
- Published online: 01 Dec 2016

Abstract

The Capricorn Orogen Passive source Array (COPA) is the passive source seismic component of a major Science and Industry Endowment Fund (SIEF) project, “The distal footprints of giant ore systems: Capricorn case study”. COPA focuses on the deep crustal and shallow lithospheric structure in the Capricorn Orogen with the aim to better understand the tectonic amalgamation of the Western Australian Craton. The objective of COPA is to produce 3D multiple scale seismic images across the orogeny, that together with other geological and geophysical datasets help constrain the timing and kinematic evolution of Capricorn Orogen’s fault zones, and their role in the metallogenic history.

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References

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Dentith, MC, Johnson, SP, Evans, S, Aitken, ARA, Joly, A, Thiel, S and Tyler, IM 2014, A magnetotelluric traverse across the eastern part of the Capricorn Orogen: Geological Survey of Western Australia, Report 135, 49p.
Heinson, G., Boren, G., Ross, J., Campanya, J., Theil, S. and Selway, K. 2011 The Capricorn Orogen magnetotelluric (MT) transect in Johnson, SP, Thorne, AM and Tyler, IM (eds) 2011, Capricorn Orogen seismic and magnetotelluric (MT) workshop 2011: extended abstracts: Geological Survey of Western Australia, Record 2011/25, p. 75-99.
Johnson, SP, Thorne, AM and Tyler, IM (eds) 2011, Capricorn Orogen seismic and magnetotelluric (MT) workshop 2011: extended abstracts: Geological Survey of Western Australia, Record 2011/25, 120p.
Reading, AM, Tkalcic, H, Kennett, BLN, Johnson, SP and Sheppard, S 2012, Seismic structure of the crust and uppermost mantle of the Capricorn and Paterson Orogens and adjacent cratons, Western Australia, from passive seismic transects: Precambrian Research, v. 196-197, p. 295-308.
Selway, K, Sheppard, S, Thorne, AM, Johnson, SP and Groenewald, PB 2009, Identifying the lithospheric structure of a Precambrian orogen using magnetotellurics: the Capricorn Orogen, Western Australia: Precambrian Research, v. 168, p. 185-196.
Snyder, D.B. 2002 Lithospheric growth at margins of cratons. Deep seismic probing of the continents and their margins. Tectonophysics v. 355, p. 7-22.
Tyson, A.R., Morozova, E.A., Karlstrom, K.E., Chaimberlain, K.R., Smithson, S.B., Dueker, K.G. and Foster, C.T. 2002 Proterozoic Farwell Mountain-LesterMountnain suture zonw, northern Colorado: Subduction flip and progressive assembly of arcs. Geology v. 30, p. 943-946.
Van der Velden, A.J., and Cook, F.A. 2005 Relict subduction zones in Canada. Journal of Geophysical Research v. 110, p. Yuan, H. 2015 Secular Change in Archean crust formation recorded in Western Australia. Nature Geoscience v. 8, p. 808-813.

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Article Type: Research Article

Keyword(s): ambient noise; Capricorn Orogen; common conversion point; passive seismic monitoring; receiver function

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oa Passive seismic studies show configuration of Paleoproterozoic subduction zones and their role in craton assembly in Western Australia

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