Minerals Alert September 2012

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

  1. New energy assessment for the southern Northern Territory
  2. Map of Australian In Situ Coal Resources (2012 edition)
  3. Map of Australian Gold Resources (2012 edition)
  4. Australia's geology Shaping a nation: A geology of Australia book released
  5. Seismic and magnetotelluric data released for Youanmi Survey in Western Australia
  6. National Geochemical Survey of Australia update
  7. Update on geophysical data releases
  8. About Minerals Alert

1. New energy assessment for the southern Northern Territory

An assessment by Geoscience Australia of the uranium and geothermal energy potential of the southern Northern Territory has been released. The study characterised areas of interpreted elevated potential for uranium mineralisation, including regions identified as prospective for uranium-rich iron oxide-copper-gold mineralisation in the southern Aileron Province. Modelled potential for hot rock geothermal energy systems was found to be generally low to moderate, while moderate to high potential for hot sedimentary aquifer geothermal systems occurs in the Pedirka Basin. The report and associated maps and digital data are available for free download from the Regional Geodynamics project.

For further information, please email anthony.schofield@ga.gov.au; or phone +61 2 6249 9833.

2. Map of Australian In Situ Coal Resources (2012 edition)

Geoscience Australia has released a new 1:10 000 000 scale colour map, Australian In Situ Coal Resources, which shows in situ resources of black and brown coal in sedimentary basins. Major coal deposits are classified according to the resource size and are plotted on the basins. The map also includes pie-charts showing resources by deposit types and by age.

The map is available as a free download.

For further information, please email subhash.jaireth@ga.gov.au; or phone +61 2 6249 9419.

3. Map of Australian Gold Resources (2012 edition)

Geoscience Australia has released a new 1:10 000 000 scale colour map, Australian Gold Resources, which comprises two sheets.

Sheet 1 shows gold resources (total production + remaining resources) of geological regions. Major gold deposits are classified according to the resource size and plotted on the regions. This sheet also includes pie-charts showing resources by geological age and resources by geological regions.

Sheet 2 shows deposit types and the geological age of deposits. It also includes a pie-chart showing resources by deposit types and a diagram showing the grade and tonnage of ore for gold deposits.

The map sheets are available as a free download.

For further information, please email subhash.jaireth@ga.gov.au; or phone +61 2 6249 9419.

4. Australia's geology Shaping a nation: A geology of Australia book released

Geoscience Australia and ANU E Press have published a new book on Australia's geology titled Shaping a nation: A geology of Australia. The book showcases the geology of Australia through the lens of its impact on people. Mineral and energy resources feature strongly among other aspects of the nation's geology. A DVD of appendices also contains a collection of major maps and synthesis documents from Geoscience Australia, as well as a Common Earth Model of 3D geological and geophysical objects in a stand-alone interface.

For further information, or to order a copy, please visit Shaping a nation: A geology of Australia or it is available free of charge from ANU E Press.

5. Seismic and magnetotelluric data released for Youanmi Survey in Western Australia

The Youanmi deep crustal seismic survey was acquired in 2010 and extends nearly 700 kilometres over the Youanmi Terrane and Eastern Goldfields Superterrane of the Yilgarn Craton. This project was a collaboration between Geoscience Australia and the Geological Survey of Western Australia (GSWA). Funding was provided from the Western Australian Government's Exploration Incentive Scheme, and Geoscience Australia’s Onshore Energy Security Program. The survey consists of three traverses with a total length of 695 kilometres. These seismic, magnetotelluric and gravity data aim to image the northern Yilgarn Craton from its north-western margin to the Ida Fault, near Leinster. These data combined with the 2001 Northern Yilgarn and the 2010 Capricorn deep crustal reflection surveys result in a complete section across the northern Yilgarn Craton.

The processed SEG Y data, TIFF images, location information, magnetotelluric and gravity data are available and can be downloaded from the Seismic Acquisition and Processing project.

Interpretations of the seismic sections and magnetotelluric models undertaken by GSWA and Geoscience Australia geologists will be released in February 2013 at a public workshop in Perth.

For further information, please email tristan.kemp@ga.gov.au; or phone +61 2 6249 9029.

6. National Geochemical Survey of Australia update

The National Geochemical Survey of Australia (NGSA) project, which was completed last year, delivered the first Geochemical Atlas of Australia based on the multi-element analysis of transported regolith samples collected at the outlet of large catchments covering most of the continent. The project, which ran from January 2007 to June 2011, was funded by the Onshore Energy Security Program and the geological surveys of all States and the Northern Territory under a collaborative National Geoscience Agreement.

Following stakeholder feedback, additional datasets depicting Catchment polygons and Particle size have been released.

The NGSA data has been well received by the energy and mineral exploration industries and is being used in new projects at Geoscience Australia. The data are the subject of a number of publications by Geoscience Australia and the State and Northern Territory geological surveys. More information on the NGSA project, data, reports and maps can be found on the National Geochemical Survey of Australia Project web page.

For further information, please email patrice.decaritat@ga.gov.au; or phone +61 2 6249 9378.

7. Update on geophysical data releases

Geoscience Australia will be managing the data acquisition program in New South Wales, Queensland, Western Australia and the Northern Territory.

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

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

To obtain further details on the survey acquisition, please email murray.richardson@ga.gov.au or phone +61 2 6249 9229.

8. About Minerals Alert

For more information, email roger.skirrow@ga.gov.au; or phone +61 2 6249 9442.

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