Tanami 3D map released

21 March 2007

Mining and exploration companies interested in searching for mineral deposits in the Tanami Desert now have an improved tool to evaluate the region's likelihood for untapped gold and other mineralisation.

It is an improved three-dimensional map developed by Geoscience Australia from information gathered in a deep seismic survey carried out in conjunction with the Western Australian and Northern Territory Geological Surveys.

The Tanami Seismic Collaborative Research Project, which included the acquisition in 2005 of four regional seismic surveys extending 724 kilometres, identified the possibility for new gold discoveries in the region beneath the Tanami Desert.

The main traverse extended almost 355 kilometres from Chilla Well to the Bald Hills Gold deposit and passed close to the Granites, Callie and Tanami gold deposits. This survey provided vital information on the region's fault system, which controlled the location of the gold deposits.

The four survey lines in the Tanami region identified important correlations between known ore deposits and specific regions of increased structural complexity, particularly areas involving SE-dipping faults.

As a result of the work, Geoscience Australia has developed a significantly improved three-dimensional map which will provide vital information on the deep structural architecture of the area to help with the evaluation of possible mineral deposits.

The traverse was made as part of the ongoing work by Geoscience Australia in collaboration with the States and Northern Territory to study the deep geological structure in regions of known or predicted mineral deposits. The work is designed to seek out common signatures in the architecture of the area to determine the potential for further deposits.

Similar surveys have been carried out in the Kalgoorlie/Boulder region in Western Australia, the Gawler region in South Australia and the Cloncurry/Mount Isa area in northwest Queensland.

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