Geoscience Australia's marine reconnaissance survey GA2476 collected geological and geophysical data over frontier basins on the Southwest Australian Margin from October 2008 to January 2009. The survey acquired 229,000 square kilometres of multi-beam sonar data and nearly 25,000 line kilometres of gravity, magnetic, and sub-bottom profiler data. Rock samples from 30 stations were analyzed to assess petroleum system elements for frontier depocentres.
Use Cases
- Modeling petroleum systems based on identified synrift sedimentary rocks and potential source rocks.
- Analyzing submarine canyon morphology and sediment distribution based on swath bathymetry and sub-bottom profiler records.
- Correlating rock types and geochemistry with tectonostratigraphic frameworks based on seismic data ties.
- Identifying volcanic features based on dredge samples from peak features.
Strengths
- Survey covered 229,000 square kilometres of multi-beam sonar data.
- Survey collected nearly 25,000 line kilometres of gravity, magnetic, and sub-bottom profiler data.
- Rock samples were collected from 30 stations in water depths ranging from 1,000 to 5,000 metres.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to data_gov_au, focusing on specific Australian frontier basins.
Provenance
- Source
- Geoscience Australia under the Australian Government's Offshore Energy Security Program.
- Collection Method
- Data acquired via marine reconnaissance survey using the RV Sonne research vessel.
- Time Range
- October 2008 to January 2009.
- Freshness
- Last updated 2026-05-05 04:56:19.126008; freshness should be verified.
- Geography
- Zeewyck and Houtman sub-basins (Perth Basin), southern Exmouth Sub-basin and Bernier Platform (Carnarvon Basin), and Cuvier Plateau (Wallaby Plateau) on the Southwest Australian Margin.