GA302 Survey: Marine Seismic and Gravity Data from Capel and Faust Basins

Geoscience Australia's GA302 survey collected data from 50 sonobuoys over the Capel and Faust Basins, 800 km east of Australia, during 2006/07. The dataset includes interpreted P-wave velocity estimates, gravity and magnetic anomaly data, and high-quality seismic reflection records used to model sediment thickness. Preliminary results describe four distinct seismic reflection patterns and P-wave velocities ranging from 1.9 to 5.3 km/s in the sedimentary layers.

Use Cases

• Modeling sediment thickness and density based on P-wave velocity estimates and gravity data.
• Analyzing subsurface stratigraphy based on the four described seismic reflection patterns.
• Constraining geological models using integrated seismic, gravity, and magnetic anomaly data.

Strengths

• Data from 50 sonobuoys provides multiple measurement points.
• Integrates three data types: seismic, gravity, and magnetic anomaly data.
• P-wave velocity ranges are provided for four model layers (1.9, 2.3-3.0, 3.6-4.7, 5-5.3 km/s).
• Survey location and water depth (1500-2000 m) are explicitly stated.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and sample data are unavailable, which may limit suitability assessment.

Provenance

Source

Geoscience Australia, Australian Ocean Data Network

Collection Method

Data recorded from sonobuoys during the GA302 seismic survey, interpreted and forward modelled by ray-tracing.

Time Range

2006/07

Freshness

Last updated 2026-04-10 19:18:15.898225; freshness should be verified.

Geography

Capel and Faust Basins, 800 km east of Australia