Update on Geophysical Data Acquisition March 2015

LocationStateSurvey% CompleteGravity StationsFlight LinesSpacingGround ClearanceComments
Southern Thomson Orogen
NSW/QLDAirborne electromagnetic
100%
N/A4 198 line km
5000mTBA

The final point located AEM data from the Darling-Paroo survey were accepted by GA on 1 October. The remaining deliverables of the final data DVD's and hardcopy report have also been accepted by GA.

DunmarraNTAirborne magnetic and radiometric100%N/AEstimated 103 909 line km; east-west; 36 280 km2
400m80m agl
The survey is located in an area between the 2007 Tanumbirini and 2001 Sturt airborne geophysical surveys. The survey collected approximately 103 900 line km of new data on east-west flight lines spaced 400 metres apart and flown at a nominal 80 metres above ground level. The survey covers parts of the Katherine, Larrimah, Hodgson Downs, Daly Waters, Tanumbirini and Newcastle Waters standard 1:250000 Map Sheets. 

The survey commenced on 28 June 2014 and completed flying on 10 October. The data were released via GADDS on 12 February 2015.

Gippsland Gravity

VIC

Gravity

100%

1 213

N/A

500m

N/A

The Geological Survey of Victoria  designed a survey of approximately 1440 stations at a nominal 400 metre station spacing on 12 separate traverses on the Warragul standard 1:250000 Map Sheet. The traverses cover an area of approximately 8358 km2.

The survey commenced on 30 June 2014 and completed data acquisition on 21 July. The processed data passed assessment by GA on 19 September. The final Operations Report was delivered to GA for assessment on 11 October.

The data are in preparation for release via GADDS when GSV advises GA of their preferred release date.

North McArthur Basin

NT

Gravity

100%

7 315

N/A

4km regular with areas of 2 km infill; 1 area of traverses spaced 4km apart with a station spacing of 1 km

N/A

The  survey  covers all or part of Arnhem Bay, Gove, Mt Evelyn, Mt Marumba, Blue Mud Bay, Katherine, Urapunga and Roper River standard 1:250 000 standard Map Sheets. The survey commenced on 16 September and completed data acquisition on 4 November. The final data re under QA/QC assessment by GA.

Coompana

SA

Airborne Magnetic and Radiometric

TBA

N/A

Estimated 249 600 line km;
east-west; 85 910 km2

400m & 200m

80m agl

The survey covers Birksgate (pt), Noorina, Wells (pt), Wyola, Maurice (pt), Cook, Ooldea (pt), Coompana (pt) and Nullarbor (pt) 1:250 000 standard Map Sheets.

The survey  commenced flying on 11 February 2015.

A beta version of the rock properties application has been released by Geoscience Australia.  Please visit : http://www.ga.gov.au/explorer-web/rock-properties.html to access this new application.

The Australian National Geophysical Grids were published as a web service by Geoscience  Australia on 15 February. This service  provides access to the latest national magnetic, radiometric and gravity grids created by Geoscience Australia. Please  visit http://www.ga.gov.au/data-pubs/web-services/ga-web-services to access all of Geoscience Australia¿s currently available web services.

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

For more information, please email clientservices@ga.gov.au; or phone 1800 800 173.

Visit the Minerals Alert Newsletter Archive to see past editions of our Minerals Alert.

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