Minerals Alert September 2007

  1. Australia's uranium resources, geology and development of deposits
  2. New Map to Assist Geothermal Explorers
  3. The Y1-P763 project final report November 2005
  4. Pre-conference field trip Kalgoorlie 2007 Old Ground New Knowledge
  5. New Gravity Survey Data in Queensland added to the Australian National Gravity Database
  6. Update on geophysical data releases
  7. Commodity Information and Offshore Minerals Fact Sheets
  8. Suspension of OZCHRON Geochronology Data Web Access
  9. About Email Alert

1. Australia's uranium resources, geology and development of deposits

Australia's uranium resources, geology and development of deposits has been re-released in PDF format onto Geoscience Australia's website. The report was released orignally in 2001. Since that date there has been a massive revival of interest by exploration/mining companies and the public in uranium resources. This report has been re-released in an improve format and represents the status of Australia's uraniun industry prior to the current revival.

The geology and resources of Australia's major uranium deposits are described. They are grouped into 15 deposit types on the basis of their geological setting as defined in the classification scheme of the OECD, Nuclear Energy Agency and the International Atomic Energy Agency. The main geological feature of each of these types is described.

For further information, please email Aden McKay; or phone +61 (0)2 6249 9230.

2. New Map to Assist Geothermal Explorers

Geoscience Australia has released a new continent-wide map - Australian Radiogenic Granite and Sedimentary Basin Geothermal Hot Rock Potential Map. This thematic map is a preliminary edition showing granites attributed by radiogenic heat production, and basin depth. The presence of high-heat producing granites adjacent to deep sedimentary basins may be used as a first-order indicator of sites to investigate for possible hot rock geothermal prospects. The majority of the granites depicted are of surface outcrop. Inset maps show sediment thickness contours from the OZ SEEBase™ database, the radiogenic heat production values and distribution of geochemical samples and the distribution of the drillholes used in the Austherm07 database. Another provides an image of the expected temperature at five kilometres which has been derived from the Austherm07 database overlain by the publicly-available heat flow measurements.

This map series can be downloaded for free online from the Geoscience Australia website.

For further information, please email Anthony Budd or phone +61 (0) 2 6249 9574.

3. The Y1-P763 project final report November 2005

Geoscience Australia Record 2007/15 entitled 'The Y1-P763 project final report November 2005. Module 3 - Terrane Structure: Tectono-stratigraphic architecture and uplift history of the Eastern Yilgarn Craton' will be released this month. This comprehensive report was presented in November 2005 to the sponsors of the joint pmd*CRC and AMIRA Y1-P763 project, and is now being released as a DVD into the public domain. It contains a 115 page report in PDF format on the structure of the central Eastern Goldfields Superterrane and is accompanied by an extensive database in the appendices.

The DVD may be purchased from the Geoscience Australia Sales Centre at cost of A$32.45 per DVD (including GST; postage and packing is extra).

For further information, please email Richard Blewett or phone +61 (0) 2 6249 9713.

4. Pre-conference field trip Kalgoorlie 2007 Old Ground New Knowledge

Geoscience Australia is leading the pre-conference field trip of the upcoming 'Kalgoorlie 2007 Old Ground New Knowledge' conference on 25 to 27 September 2007. The trip will be presenting the results of the Y1-P763 pmd*CRC and AMIRA project which concluded in late 2005. The excursion to Menzies, Leonora, Agnew, Laverton and areas in between will demonstrate that there have been multiple gold mineralising events (extensional, compressional and strike-slip, both sinistral and dextral) and that these can be integrated into an overall geodynamic systems understanding through time. One of the aims of the excursion is to challenge the existing structural paradigm by examining its foundations and more generically to examining the first principles by which regional structural event histories are compiled. We will present a modified regional structural event history primarily based on field relationships integrated with geochronological, geochemical, seismic and map pattern constraints. The guide will be available as GSWA Record 2007/19 from the Geological Survey of Western Australia.

For further information, please email Richard Blewett or phone +61 (0) 2 62499713

5. New Gravity Survey Data in Queensland added to the Australian National Gravity Database

Gravity data from the Geological Survey of Queensland and company surveys in the State have recently been incorporated into the Australian National Gravity Database.

A total of 23,618 stations from 32 surveys are now open file and have been entered into the Australian National Gravity Database. Data were provided to Geoscience Australia by the Geological Survey of Queensland. The surveys centre on the Mt Isa Region and south east Queensland.

All data in the Australian National Gravity Database, can be obtained free-of-charge using the Geophysical Archive Data Delivery System "GADDS".

For further information, please email Mario Bacchin or phone +61 (0)2 6249 9308.

6. Update on geophysical data releases

The current status of geophysical survey data acquisition is available in comprehensive table form on the Geoscience Australia website. New surveys pending are located in the Cooper Basin region of south west Queensland.

For further information, email Murray Richardson or phone +61 (0)2 6249 9229.

7. Commodity Information and Offshore Minerals Fact Sheets

Commodity Information and Offshore Minerals Fact Sheets have been released via the Australian Mines Altas.

For further information, please email Aden McKay or phone +61 (0)2 6249 9230.

8. Suspension of OZCHRON Geochronology Data Web Access

With the impending arrival of the Sensitive High Resolution Ion MicroProbe (SHRIMP) at Geoscience Australia, the management of geochronology data is under review with new systems planned for 2007/08 and beyond. During this time, some previously available data delivery mechanisms, such as the OZCHRON web application, have been disabled. In most cases, delivery of existing data holdings will continue via alternate means such as collated OZCHRON datasets. The online summary reports of recently acquired data will continue.

It is important to note that although web data delivery tools have been disabled, the OZCHRON database itself will remain operational and available for specific queries as required by Geoscience Australia clients.

For further information about the geochronology data management redevelopment project or access to existing data email Keith Sircombe or phone +61 (0) 2 6249 9543.

9. About Email Alert

For more information contact Mike Huleatt on +61 2 6249 9087 or email mike.huleatt@ga.gov.au.

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

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