Minerals Alert April 2008

  1. One-Day Workshop - 2006 Mt Isa Deep Crustal Survey Project
  2. Riverina geochemical survey report released
  3. Geology, Structure, and Mineral Resources of the Lake Violet 1:100 000 Sheet, Western Australia
  4. New Gravity Survey Data in Queensland added to the Australian National Gravity Database
  5. Update on geophysical data releases
  6. A Web page for the National Geochemical Survey of Australia (NGSA) Project
  7. NEW PERSPECTIVES - The foundations and future of Australian exploration conference 11-12 June 2008
  8. Association of large sandstone uranium deposits with hydrocarbons
  9. Useful Geoscience Australia Websites
  10. About Minerals Alert


1. One-Day Workshop - 2006 Mt Isa Deep Crustal Survey Project

A one-day workshop on 24 June 2008 will be held in Mt Isa to release the results of the 2006 Mt Isa Deep Crustal Survey Project, a joint project between Geoscience Australia, the Geological Survey of Queensland, pmd*CRC and Zinifex Ltd.

For further information and registration details, email David Huston or phone +61 (0)2 6249 9577.

2. Riverina geochemical survey report released

A report entitled Riverina Region Geochemical Survey, Southern New South Wales and Northern Victoria (CRC LEME OFR 234) by Patrice de Caritat, Megan E. Lech, Subhash Jaireth, John Pyke and Adrian Fisher is now available for download. The report describes the methods, results and preliminary interpretations from a pilot project applying low-density sampling of near-surface transported regolith in the Riverina region of NSW and Victoria. Sediment samples were collected at two depths (0-10 cm and ~60-90 cm depth) near the outlet of 142 catchments over the area. Bulk parameters and the concentrations of over 60 elements in the <180 um fraction were measured. Analyses of sequential leachates, complete soil profiles, heavy mineral separates, and River red gum leaves were also carried out at selected sites.

Geochemical patterns displayed by mapping the concentration distributions of all elements in the regolith at both depths show the influence of nearby outcropping bedrock in the southeastern and eastern parts of the study area. This includes the observation of dispersion, probably both laterally across the Murray Basin and vertically through the sediment cover, of elements related to mineralisation, e.g., Au, Sb, As from the Victorian goldfields to the south, and Ag and Zn from base metal mineralisation in the Lachlan Fold Belt to the east. The data provides a layer of fundamental geochemical information for mineral exploration; potential alternative uses of this data set include land management, environmental monitoring and geohealth.

For further information, email Patrice de Caritat or phone +61 (0)2 6249 9378.

3. Geology, Structure, and Mineral Resources of the Lake Violet 1:100,000 Sheet, Western Australia

The Geological Survey of Western Australia in association with Geoscience Australia has released Record 2007/21 A.J. Stewart entitled 'Geology, Structure, and Mineral Resources of the Lake Violet 1:100,000 Sheet, Western Australia'. The sheet area forms part of the auriferous Yandal greenstone belt of Archaean rocks of the Yilgarn Craton. The record includes descriptions of all rocktypes, detailed analyses of the structure, metamorphism, and alteration of the greenstones, and summary descriptions of gold deposits in the area. It also includes a new solid-geology map of the area. The record was completed as part of a National Geoscience Mapping Accord project between Geoscience Australia and the Geological Survey of Western Australia and is available online.

For further information, email Alan Whitaker or phone +61 (0)2 6249 9702.

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

Gravity data from surveys conducted in the State by private companies have recently been incorporated into the Australian National Gravity Database. A total of 14,961 stations from 14 surveys recently became open file and were provided to Geoscience Australia by the Geological Survey of Queensland. The surveys are located in the Mt Isa Region and the data are now available from the Australian National Gravity Database. 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, email Mario Bacchin; or phone +61 (0)2 6249 9308.

5. Update on geophysical data releases

The current status of Geoscience Australia's geophysical survey data acquisition is available in a comprehensive table. This includes information on new surveys for West Musgrave, Central Arunta and Pine Creek.

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

6. Web page for the National Geochemical Survey of Australia (NGSA) Project

Information on Geoscience Australia's National Geochemical Survey of Australia NGSA Project is now available online. The project commenced in January 2007 and is one of several national projects within the Onshore Energy Security Program.

For more information email, Patrice de Caritat or phone +61 (0)2 6249 9378.

7. NEW PERSPECTIVES -The foundations and future of Australian exploration conference 11-12 June 2008

New Perspectives, the foundation and future of Australian exploration conference will be held from 11-12 June 2008 at the University Club, at the University of Western Australia. The conference examines the developments from the Enabling Technology research stream based on the pmd*CRC's unique '5 Question' approach to mineral exploration. Changes to industry practice initiated by the pmd*CRC together with its delivery processes have been positively received by industry and made possible through the unique work flow practice implemented in the research program.

The conference aims to:

  • provide a forum for the showcasing new approaches and techniques that have resulted from research in the pmd*CRC from 2001-2008
  • is structured to demonstrate how new techniques and technologies can be applied to mineral exploration within a Mineral Systems Framework
  • represents the first and only occasion for presenting the full range of "enabling technology" outcomes to CRC sponsors and to a wider exploration audience. It will also be the final major gathering of the Centre's sponsors and researchers for the seventh year of the CRC
  • is also open to non-sponsors interested in the work developed by the CRC

To register or download a copy of the program visit the CRC website.

For more information email, Helen Keogh or phone +61 (0)2 6249 9566.

8. Association of large sandstone uranium deposits with hydrocarbons

Hydrocarbons seem to have played a crucial role in the formation of the world-class sandstone uranium deposits in south-central Kazakhstan and other large sandstone-type uranium deposits. Only about two per cent of Australia's known uranium resources are in sandstone deposits, despite apparently favourable geological settings for this style of uranium mineralisation.

For further information please visit AusGeo News.

9. Useful Geoscience Australia Websites

Geoscience Australia's website has a large number of informative pages including a succinct review of activity and results from the current Onshore Energy Security Program.

10. About Minerals 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