From Geoscience Australia
JSON RDF ISO19115-3 XML

Olympic Domain SkyTEM312 AEM Survey, South Australia, 2017

ARCHIVED

Created 14/01/2025

Updated 14/01/2025

JSON RDF ISO19115-3 XML

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.

Files and APIs

Tags

Additional Info

Field Value
Title Olympic Domain SkyTEM312 AEM Survey, South Australia, 2017
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/0dccad27-20ae-4035-b51b-ed3c01ad0d9a
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/11/2017 - 01/12/2017
Geospatial Coverage {"type": "Polygon", "coordinates": [[[136.77, -31.8], [137.75, -31.8], [137.75, -30.8], [136.77, -30.8], [136.77, -31.8]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Olympic Domain SkyTEM312 AEM Survey, South Australia, 2017". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/olympic-domain-skytem312-aem-survey-south-australia-2017

Original dataset
Dataset copies

No duplicate datasets found.