Minerals Alert May 2011

A monthly online newsletter with product news, data releases and projects relating to the minerals and energy exploration industry.

1. Workshops on Geoscience Australia’s Northern Territory Pine Creek AEM Survey Data

The first workshop was presented in Alice Springs immediately following the recent Annual Geoscience Exploration Seminar (AGES) conference.

There will be another half-day workshop in Perth, Western Australia, on Tuesday 7 June, 2011 starting at 9:00am, at The Celtic Club Inc., 48 Ord Street, West Perth.

Registrations forms containing details of the repeat workshop in Perth are available online.

The Pine Creek airborne electromagnetic survey results are now available as a free download.

To obtain further details on the workshop, please email mike.craig@ga.gov.au; or phone +61 2 6249 9453.

2. Yilgarn-Officer-Musgrave Seismic Survey commences

Image of Yilgarn-Officer-Musgrave Seismic Survey

Yilgarn-Officer-Musgrave
Seismic Survey
© Geoscience Australia

A field crew is currently mobilising to the Yilgarn-Officer-Musgrave geophysical survey in central-eastern Western Australia. Deep-crustal reflection seismic, refraction seismic, gravity, and magneto-telluric data will be acquired along a 487 kilometre long traverse linking the Yilgarn and Musgrave Cratons (see figure). This will be the final major seismic survey to be carried out under the Onshore Energy Security Program and aims to image the western Officer Basin, which is another of Australia’s under-explored sedimentary basins with hydrocarbon potential. The survey data will build on the geological knowledge also of Australia’s crustal architecture and the relationship of the Officer Basin to the western Yilgarn and central Musgrave Cratons. Jointly funded by the Geoscience Australia’s Onshore Energy Security Program and the Geological Survey of Western Australia, the survey is expected to be completed in mid-June when it is anticipated the crew will to move onto the proposed South Carnarvon Line (see figure).

For further information, please email ned.stolz@ga.gov.au; or phone +61 2 6249 9763.

3. Australia’s Crustal Elements – re-release of corrected data

A 1:5 million scale map and digital dataset of Australia’s Crustal Elements was published by Geoscience Australia in 1996 (Shaw, R.D., Wellman, P., Gunn, P., Whitaker, A.J., Tarlowski, C., and Morse, M. 1996, Australian Crustal Elements based on the distribution of geophysical domains.) This dataset has recently been updated to correct some identified errors in the data and to provide the data in more current digital formats. The map, explanatory notes, and GIS data are available as a free download.

Image of Australia's Crustal Elements

Australia's Crustal Elements
© Geoscience Australia

Geoscience Australia is currently compiling an upgraded crustal elements dataset, which will incorporate many more geophysical data than were available in 1996. The continent’s deep lithospheric structures and domains will be interpreted using the latest national gravity and magnetic active and passive seismic and magneto-telluric data, as well as the distribution of major igneous geochemical and metallogenic domains. Identification of the large scale fundamental structure underlying Australia will guide ongoing resource exploration and understanding of the evolution of the Australian continent.

For further information, email jonathan.claouelong@ga.gov.au; or phone +61 2 6249 9418.

4. Update on geophysical data releases

The current status of Geoscience Australia's geophysical survey data acquisition is now available in a comprehensive table.

Minerals Alert Geophysical Surveys Table - survey boundary polygons in MapInfo TAB format.

For further information, email murray.richardson@ga.gov.au; or phone +61 2 6249 9229.

5. About Minerals Alert

For more information, email paul.henson@ga.gov.au or phone +61 2 6249 9138.

To read past editions of Geoscience Australia's Minerals Alert, visit the Minerals Alert Newsletter Archive.

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