Product catalogue
Olympic Domain SkyTEM312 AEM Survey, South Australia, 2017
The 2017 Olympic Domain Airborne Electro-Magnetic (AEM) Survey was conducted by Geoscience Australia as part of a collaborative project between the Commonwealth of Australia (Geoscience Australia) and its partner the State of South Australia (Department of State Development: Geological Survey of South Australia). Geoscience Australia contracted SkyTEM Australia Pty Ltd to acquire heliborne AEM data over the Olympic Domain in South Australia using their proprietary 312M SkyTEM Interleaved Low Moment and High Moment system trading as "SkyTEMfast". The raw data were processed using SkyTEM Aps Denmark, SkyTEM Australia Pty Ltd’s proprietary software. The survey area consists of 3073.4 line km of time-domain AEM geophysical data acquired in a single survey block located on the 1:250000 map sheets, SH53-12 (Andamooka) and SH53-16 (Torrens) approximately 420 kilometres north-north west of the city of Adelaide, SA. The traverse lines were flown in an East-West orientation with line spacing of 1500 and 3000m. Recent AusLAMP (Australian Lithospheric Architecture Magnetotelluric Project) results and modelling across the Gawler Craton have revealed zones of enhanced crustal conductivity at depths of 15-40km in the mid to lower crust along the eastern margin of the craton. These zones coincide with the highly prospective Olympic Domain IOCG belt and may indicate the presence of a mantle plumbing system that contributed to the formation of the mineral systems and deposits in this belt. A key example of this enhanced crustal conductivity exists in the Prominent Hill-Carrapateena-Punt Hill area within the central Olympic domain. The AEM flight line locations were designed to cover these AusLAMP identified deep crustal conductive zone and investigate possible upward continuation of the deep crustal anomaly through the cover sequence.
The data have been inverted with the AarhusInv Program using the Aarhus Workbench LCI algorithm. The data release package includes: 1) Point-located Low Moment & High Moment dB/dt electromagnetic data with associated position, altimeter, orientation, and derived ground elevation data. These data are in ASCII column format with associated ASEG-GDF2 header files. 2) Point-located conductivity data derived from the inversion of the observed data with the AarhusInv Program using the Aarhus Workbench LCI algorithm. 3) Gridded data (600m cell size) in ER Mapper® binary raster grid format with associated header files for the conductivity depth slices derived from the Aarhus Workbench LCI data, with and without depth of investigation (DOI) masking. 4) Gridded magnetics and elevation data in ER Mapper® binary raster grid format with associated header files. 5) Graphical multiplots, in PNG format, for each flight line showing Aarhus Workbench LCI model sections (with DOI mask line) with profiles of the Low & High moment Z component dB/dt data and the model fit residual. 6) Contractor supplied Operations Report. 7) ESRI shapefiles of the flight lines. 8) Metadata and License files.
Simple
Identification info
- Date (Creation)
- 2018-06-27T17:05:00
- Date (Publication)
- 2018-08-03T05:13:54
- Date (Revision)
- 2019-04-09T01:08:55
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/121613
- Cited responsible party
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Role Organisation / Individual Name Details Custodian Geoscience Australia
- Purpose
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The principal objective of the survey was to capture a new baseline geoscientific dataset to provide further information on the geological context and setting of the area for mineral systems, thereby increasing the known prospectivity of a major regional geological province. The AEM survey data has;
• Define the distribution of cover sequences that obscure the basement geology and provided insight into its variations.
• Characterised conductivity variations within the basement and cover sequences.
• Provide some definition into the groundwater resource potential of the region.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Custodian Richardson, L.M.
Resource provider Resources Division
Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
- Spatial representation type
Spatial resolution
- Level of detail
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100K
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- November 2017 December 2017
Extent
))
- Maintenance and update frequency
- As needed
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
- Data centre
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AEM
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- Keywords
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SkyTEM
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- Keywords
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SKYTEM312
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- Keywords
-
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SkyTEMfast
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- Keywords
-
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Gawler Craton
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- Keywords
-
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Olympic Domain
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- Keywords
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LEI
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- Keywords
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LCI inversion
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- Keywords
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Airborne Electromagnetic
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- Product
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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
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Model sections (png)
Model sections (png)
- OnLine resource
-
ER mapper grids dem conductivity magnetics
ER mapper grids dem conductivity magnetics
- OnLine resource
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Located point data for conductivity models
Located point data for conductivity models
- OnLine resource
-
Located observed data
Located observed data
- OnLine resource
-
Flight lines (shp)
Flight lines (shp)
- OnLine resource
-
Project metadata (pdf)
Project metadata (pdf)
- Distribution format
-
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pdf
-
- OnLine resource
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Acquisition report (pdf)
Acquisition report (pdf)
- Distribution format
-
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pdf
-
Resource lineage
- Statement
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Not supplied
- Hierarchy level
- Dataset
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/5efdaaca-1bc9-4bcb-84c5-907d00a77fd0
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Richardson, L.M.
Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
- Name
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GA Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/121613
- Date info (Creation)
- 2018-06-27T07:03:32
- Date info (Revision)
- 2018-06-27T07:03:32
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Edition date
- 2015-07-01T00:00:00
- Title
-
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