Authors / CoAuthors
Costelloe, M.T. | Brodie, R.C.
Abstract
Airborne Electromagnetic data are being acquired by Geoscience Australia (GA) under the Australian Government's Onshore Energy Security Program (OESP) in areas considered to have potential for uranium or thorium mineralisation. The surveys have been managed and interpreted by GA's Airborne Electromagnetic Acquisition and Interpretation project. In contrast to deposit scale investigations, conducted by industry, these surveys are designed to reveal new geological information at a regional scale. The Pine Creek airborne electromagnetic survey show in Figure 1 is comprised of three survey areas; Woolner Granite, Rum Jungle and Kombolgie. TEMPESTTM data were acquired for the Woolner Granite and Rum Jungle surveys and VTEMTM data were acquired for the Kombolgie survey. The Kombolgie survey, in the Pine Creek Orogen of the Northern Territory, covered sections of the Alligator River, Cobourg Peninsula, Junction Bay, Katherine, Milingimbi and Mount Evelyn, 1:250 000 map sheets (Costelloe et al., 2009). A total of 8 800 line km of VTEMTM data were acquired in 2008, covering an area of 32 000 km2. In 2009 the processed response data and EM FlowTM commercial version 3.30 (Macnae et al., 1998, Stolz and Macnae 1998) conductivity estimates to 600 m depth, produced by the survey contractor Geotech Airborne, were made available to the public in the GA Phase-1 data release. In this article we discuss an enhanced set of conductivity estimates, which are now available from the GA website free of charge. These new conductivity estimates, reveal new geological information to depths approaching 2 km in the more resistive portion of the survey area. They were generated by GA using the most recent version (5.23-13) of EM FlowTM.
Product Type
nonGeographicDataset
eCat Id
71399
Contact for the resource
Custodian
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- External PublicationArticle
- ( Theme )
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- AEM
- ( Theme )
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- Airborne Electromagnetics
- ( Theme )
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- mineral exploration
- ( Theme )
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- geophysics
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- AU-NT
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2010-01-01T00:00:00
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notPlanned
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geoscientificInformation
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Parent Information
Extents
[-14.6, -11.5, 132.5, 134.3]
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