Southern Thomson Orogen VTEM Airborne Electromagnetic Survey - Inversion Products
<p>The Southern Thomson Orogen VTEMplus® Airborne Electromagnetic Survey was conducted by Geoscience Australia as part of a collaborative project with its partners the Geological Survey of New South Wales and the Geological Survey of Queensland. The Survey contributes to the Australian Academy of Science's UNCOVER Initiative and Geoscience Australia's response to this as part of the National Mineral Exploration Strategy.
Geoscience Australia contracted Geotech Airborne Ltd to acquire VTEMplus® airborne electromagnetic (AEM) data over part of the Southern Thomson Orogen in Queensland and New South Wales in April and May 2014. The data were also processed by Geotech Airborne Ltd using its FullWaveForm® processing techniques.
<p>The survey is designed to assess the under-cover geology and prospectivity of the Southern Thomson Orogen around Hungerford and Eulo and straddles the New South Wales-Queensland border. The survey comprises two parts:
<p>1. A regular regional survey on 5000 m spaced east-west flight lines totalling 3352 line km and covering an area of 16 261 km2.
<p>2. Two regional traverses adjacent to roads totalling 915 line km.
<p>The Southern Thomson Orogen is a priority area for mineral systems research. Much of the area lies underneath cover of sedimentary basins and is a poorly-understood element of Australia's geology. The Orogen contains Cambro-Ordovician rocks that have potential for Iron Oxide Copper-Gold (IOCG) resources, porphyry copper-gold and Volcanic-Hosted Massive Sulphide (VHMS) deposits. Survey data will add to knowledge of cover thickness and character and will inform future geological mapping in the region.
<p>Previously Released Data (Phase 1)
<p>In August 2014 the processed data from the Southern Thomson Orogen VTEMplus® AEM Survey were released in the Phase 1 data release package that is available free of charge from Geoscience Australia's web site (see https://pid.geoscience.gov.au/dataset/ga/81852). The Phase 1 package includes the final processed electromagnetic data, waveform files, multiplots, conductivity estimates from the EM Flow® conductivity depth imaging algorithm, and an operations and processing report, all produced by the contractor Geotech Airborne Ltd.
<p>Current Release (Phase 2)
<p>This Phase 2 data release package contains results from the electromagnetic inversion of the data in the Phase 1 release. The inversion results were generated using two different types of algorithm, a deterministic regularized gradient based algorithm, which we call GALEISBS (Roach, 2010), and a reversible-jump Markov chain Monte Carlo algorithm, which we call GArjMcMC (Brodie and Sambridge, 2012; Brodie and Reid, 2013). Both algorithms assume a layered earth or 1D conductivity structure. Each airborne electromagnetic sounding is inverted independently and the results are then stitched into combined sections.
<p>The deterministic GALEISBS inversion products are available for download in four logical parts based on the type of derived product. These are zipped into the following four files:
<p>1. galeisbs_point_located_data.zip
<p>2. galeisbs_sections.zip
<p>3. galeisbs_georeferenced_sections.zip
<p>4. galeisbs_gocad_sgrids.zip
<p>The stochastic GArjMcMC inversion products are available for download in five logical parts based on the type of derived product. These are zipped into the following five files;
<p>1. rjmcmc_point_located_data.zip
<p>2. rjmcmc_sections.zip
<p>3. rjmcmc_georeferenced_sections.zip
<p>4. rjmcmc_gocad_sgrids.zip
<p>5. rjmcmc_probability_map_plots.zip
Simple
Identification info
- Date (Publication)
- 2014-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/82564
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.4225/25/5497711797856
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Geoscience Australia
Canberra Author Brodie, R.C.
1 Author Roach, I.C.
2
- Point of contact
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Role Organisation / Individual Name Details Custodian RD
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- Not planned
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
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Airborne Digital Data
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- Theme
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AEM
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- Theme
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Airborne Electromagnetics
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- Theme
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Earth Sciences
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- Theme
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TEM
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- Theme
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geophysics
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- Keywords
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QLD
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NSW
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Electrical and Electromagnetic Methods in Geophysics
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Download the GALEISBS georeferenced sections (png)
Download the GALEISBS georeferenced sections (png)
- OnLine resource
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Download the report (pdf)
Download the report (pdf)
- OnLine resource
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Download the rjMcMC multiplot sections (jpg, pdf)
Download the rjMcMC multiplot sections (jpg, pdf)
- OnLine resource
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Download the rjMcMC probability map plots (jpg)
Download the rjMcMC probability map plots (jpg)
- OnLine resource
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Download the rjMcMC point located data (dat)
Download the rjMcMC point located data (dat)
- OnLine resource
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Download the rjMcMC GOCAD SGrids (sg)
Download the rjMcMC GOCAD SGrids (sg)
- OnLine resource
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Download the GALEISBS GOCAD SGrids (sg)
Download the GALEISBS GOCAD SGrids (sg)
- OnLine resource
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Download the GALEISBS point located data (dat)
Download the GALEISBS point located data (dat)
- OnLine resource
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Download the GALEISBS multiplot sections (jpg, pdf)
Download the GALEISBS multiplot sections (jpg, pdf)
- OnLine resource
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Download the rjMcMC georeferenced sections (png)
Download the rjMcMC georeferenced sections (png)
Resource lineage
- Statement
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Unknown
- Hierarchy level
- Dataset
- Description
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Source data not available.
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/09fb5a6c-b31f-3789-e054-00144fdd4fa6
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
- Name
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dataset
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/82564
- Date info (Revision)
- 2018-04-20T06:06:10
- Date info (Creation)
- 2014-12-12T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551