Updated: 05 October 2006

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.

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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.

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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.

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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.

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5. About Email Alert

For more information, please email Mike Huleatt, or phone +61 (0)2 6249 9087.

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

To unsubscribe visit the online subscription page and follow the instructions.

For more information contact: Mike Huleatt

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