Publication Name: Australasian Exploration Geoscience Conference 2018
Authors: Gerry O’Halloran, Chris Paschke, Craig Dempsey, Chris Hurren, Robert Scott, Guimin Liu
Date Published: February 2018
Number of Pages: 6
Abstract:
The Tres Hombres structure is a large mid-crustal structural feature that that underlies the Permian – Late Jurassic mega-sequences of the Northern Beagle Sub-basin, Western Australia. Originally identified on regional 2D seismic lines, the Tres Hombres structure has now, for the first time, been fully imaged by high quality, deep record modern 3D seismic data. The area is also covered by gravity and magnetic datasets which were acquired together with the 3D seismic survey. Seismic mapping reveals a dome-like structure with a diameter of more than 30km, and with vertical relief of over 5km. This paper integrates seismic and potential fields datasets to explore the origins of this intriguing structure.