Update on Geophysical Data Acquisition March 2015
Location | State | Survey | % Complete | Gravity Stations | Flight Lines | Spacing | Ground Clearance | Comments |
---|---|---|---|---|---|---|---|---|
Southern Thomson Orogen | NSW/QLD | Airborne electromagnetic | 100% | N/A | 4 198 line km | 5000m | TBA | 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. |
Dunmarra | NT | Airborne magnetic and radiometric | 100% | N/A | Estimated 103 909 line km; east-west; 36 280 km2 | 400m | 80m 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; | 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.
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