New data for mineralised regions in WA

25 January 2013


Vibroseis trucks carrying out a
seismic transect in Western Australia’s
Victoria desert.
© Geoscience Australia


The release of the final seismic, gravity and magnetotelluric processed data from Geoscience Australia’s Onshore Energy Security Program has resulted in a continuous dataset extending over 1600 kilometres across the mineralised regions in central Western Australia.

The final dataset contains 484 kilometres of data which was acquired in 2011 by Geoscience Australia in conjunction with the Geological Survey of Western Australia over the Yilgarn Craton, Officer Basin and Musgrave Province as part of the Western Australian Government’s Royalties for Regions Exploration Incentive Scheme.

When combined with results from similar surveys in 2001, 2010 and 2011, the latest data provides a complete cross section of central Western Australia from Warakurna adjacent to the South Australian border almost to the coast at Shark Bay south of Carnarvon.

Geoscience Australia geophysicist, Tristan Kemp, said the data will help to expand the understanding of the complex structure and geology of the Australia continent.

“The data collected will provide valuable information about the Earth’s structure from near the surface to depths of around 40 kilometres at the Moho boundary between the Earth’s crust and the mantle,” Mr Kemp said.

“Overall, Geoscience Australia gathered more than 6500 kilometres of deep crustal seismic data during the Onshore Energy Security Program and much has proved invaluable to the minerals and energy exploration industry already,” he said.

“An interpretation of this seismic and magnetotelluric data using computer models will be presented at a public workshop in Perth in June,” Mr Kemp said.

The seismic, gravity and magnetotelluric datasets acquired as part of the Onshore Energy Security Program are available as free downloads.

Topic contact: media@ga.gov.au Last updated: October 4, 2013