Minerals Alert October 2006

  1. Update on geophysical survey data acquisition
  2. New geophysical surveys
  3. Gawler Project breaks cover
  4. Metallogenesis of intrusive rocks of Victoria
  5. About Email Alert

1. Update on geophysical survey data acquisition

Geoscience Australia has received final processed data from the Bowen-Surat North airborne magnetic survey for checking. Data processing is continuing for the Isa South-West airborne magnetic and radiometric survey.

The status of current surveys is:

Location State Survey % Complete Gravity Stations Flight Lines Spacing Ground Clearance Comments
Musgrave Extension WA Airborne magnetic & radiometric 82% N/A northern area north-south; southern area east-west 400 m 60 m This survey is comprised of 2 separate areas
Ashburton WA Airborne magnetic & radiometric 19.7% N/A north-south 400 m 60 m  
Southern Officer Basic WA Airborne magnetic & radiometric 32.4% N/A north-south 400 m 60 m  
Webb WA Gravity 100% 4100 new east-west 2.5 km N/A  
Murchison WA Gravity N/A 3600 new east-west 2.5 km N/A This survey is expected to commence in October
Bowen-Surat North Qld Airborne magnetic & radiometric 100% N/A east-west 400 m 80 m  
Isa South-West Qld Airborne magnetic & radiometric 100% N/A east-west 400 m 80 m  
Isa South-East Qld Airborne magnetic & radiometric 48.9% N/A east-west 400 m 80 m  
Isa Area B Qld Gravity 90% 9898 new east-west 2 km & 4 km N/A Dobbyn and the eastern half of Camooweal 1:250 000 map sheet areas at 2 km station spacing;
Donors Hill, Lawn Hill, western half of Camooweal and western half of Mount Isa 1:250 000 map sheet areas at 4 km station spacing

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

2. New geophysical surveys

Geoscience Australia will be managing a new data acquisition program in Queensland, Northern Territory and Tasmania.

Location State Survey Area (km2) Gravity Stations Flight Lines Spacing Ground Clearance Notes
Mount Isa C1 - Duchess and Urandangi Qld Gravity 68 000 with C2 (below) ~9 236 with C2 (below) N/A 2.0 km grid N/A Data acquisition is expected to commence in October. Requests for quotation for the provision of airborne magnetic and radiometric coverage close on 18 October
Mount Isa C2 - Glenormiston and Mount Whelan Qld Gravity 68 000 with C1 (above) ~9 236 with C1 (above) N/A 4.0 km grid N/A Data acquisition is expected to commence in October. Requests for quotation for the provision of airborne magnetic and radiometric coverage close on 18 October
East Isa North Qld Magnetic & Radiometric 39,940 N/A east-west 400m 80m The survey covers parts of the Richmond, Hughenden, McKinlay, Manuka and Tangorin 1:250 000 Map Sheets
East Isa South Qld Magnetic & Radiometric 51,560 N/A east-west 400m 80m The survey covers parts of the McKinlay, Manuka, Mackunda, Winton, Brighton Downs and Maneroo 1:250 000 Map Sheets
Tiwi Islands NT Airborne magnetic & radiometric 10 200 N/A north-south 400 m 80 m Covers parts of the Bathurst Island, Melville Island and Darwin 1:250 000 map sheet areas
North-East Tasmania Tas Airborne magnetic & radiometric 8600 N/A east - west 200 m 90 m Data acquisition is expected to commence in November, and will cover approx 51,280 line km of magentic and radiometric data
Flinders Island Tas Airborne magnetic & radiometric 2900 N/A east - west 200 m 90 m Data acquisition is expected to commence in November, and will cover approx 18,600 line km of magentic and radiometric data

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

3. Gawler Project breaks cover

The Gawler Mineral Promotion Project has demonstrated how to come to grips with the geology and mineralisation of a region generally obscured by hundreds of thousands of metres of cover. It produced a coherent model of mineralisation of the eastern and central Gawler Craton which links the iron oxide-copper-gold mineral systems with their coeval lode-gold deposits for the first time.

For further information visit the AusGeo News webpage.

4. Metallogenesis of intrusive rocks of Victoria

Geoscience Australia has been compiling and synthesising datasets of various metallogenic parameters for intrusive rocks and country rock units of the Tasmanides of eastern Australia. This project is now expanding into the Tasman Fold belt of Victoria and synthesising metallogenic data for Victorian rock units.

For further information visit the AusGeo News webpage.

5. 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: minerals@ga.gov.au Last updated: May 31, 2012