Authors / CoAuthors
Mann, A. | Davidson, A. | de Caritat, P.
Abstract
Top outlet sediments from the National Geochemical Survey of Australia (NGSA) have been extracted with Mobile Metal Ion (MMIR) solution and analyzed for over 50 elements including gold (Au). The MMIR Au results from this low density survey show discrete coherent anomalies for Au in the vicinity of many of Australia's known gold deposits, and in the vicinity of some minor gold occurrences. In several instances catchment outlet anomalies for Au have been recorded from areas not known to contain significant economic gold. Several large economic gold deposits are shown to not produce anomalies in catchment outlet samples. A survey of overbank samples in the Swan Avon Catchment of Western Australia at double the sampling density shows that low level anomalies (MMIR Au>1ppb) can be traced back to source using overbank sediments. Follow-up of one of the NGSA Au anomalies at Kent River in previously regarded non-auriferous terrain (western Albany-Fraser Belt) indicates a non-economic but perhaps geochemically significant Au anomaly with associated pathfinders including palladium. This may indicate that further exploration of the western part of Albany Fraser Belt for Au is warranted. The combination of catchment overbank samples and high-resolution MMIR technique has been shown to be effective at locating the source of gold anomalies from initial low-density continental and regional surveys.
Product Type
nonGeographicDataset
eCat Id
75624
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- External Publication
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- AU
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Geochemistry
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- Published_Internal
Publication Date
2013-01-01T00:00:00
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notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
National Geochemical Survey of Australia (P. de Caritat) Propriatry datasets (A. Mann, SGS)
Parent Information
Extents
[-44.0, -10.0, 112.0, 154.0]
Reference System
Spatial Resolution
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Source Information
National Geochemical Survey of Australia (P. de Caritat) Propriatry datasets (A. Mann, SGS)