Vlaming Sub-Basin Seabed Survey for CO2 Storage Assessment, 2012

Western Australia's Vlaming Sub-Basin was surveyed in March-April 2012 by Geoscience Australia to support CO2 storage potential assessment. The survey collected 653 km² of multibeam and backscatter data, 6.65 km² of side-scan sonar imagery, and 89 seabed grab samples from 43 stations. Data acquisition focused on two areas above the South Perth Shale seal and Gage Sandstone reservoir to investigate seabed-deep geology connectivity.

Use Cases

• Assess seal integrity for CO2 storage based on seabed geomorphology and structural discontinuities.
• Map potential fluid seepage pathways using side-scan sonar and sub-bottom profile data.
• Characterize seabed environments, such as rhodolith beds, using multibeam and grab sample data.
• Correlate surface geomorphic features with underlying geological structures for basin analysis.

Strengths

• Includes 653 km² of multibeam and backscatter data for detailed seabed mapping.
• Contains 89 seabed grab samples from 43 stations for ground-truthing.
• Acquired 6.65 km² of side-scan sonar imagery and concurrent chirper sub-bottom profiles.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The relationship between seabed features and subsurface geology is described as uncertain, requiring further work.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Marine environmental survey using multibeam, backscatter, side-scan sonar, chirper sub-bottom profiler, and seabed grab sampling.

Time Range

March-April 2012.

Freshness

Last updated 2026-04-16 08:48:43.311859; freshness should be verified.

Geography

Vlaming Sub-Basin, Rottnest Shelf, Western Australia.