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

Data from 50 sonobuoys were recorded over the Capel and Faust Basins, 800 km east of Australia, during a 2006 seismic survey for Geoscience Australia's Big New Oil programme. The data were interpreted and forward modelled by ray-tracing to estimate P-wave velocities in the upper sedimentary section and constrain sediment thickness. Gravity and magnetic anomaly data were also recorded to provide additional constraints for velocity models.

Use Cases

• Model P-wave velocity structures in sedimentary layers based on sonobuoy and seismic reflection data.
• Estimate sediment thickness in offshore basins based on forward modelling and gravity data.
• Correlate gravity anomaly models with features identified on depth-converted seismic reflection lines.
• Constrain velocity models for the upper sedimentary section using integrated seismic, gravity, and magnetic data.

Strengths

• Data from 50 sonobuoys provides multiple measurement points.
• Integrated dataset includes seismic reflection, gravity, and magnetic anomaly data.
• Velocity models provide typical P-wave ranges for four subsurface layers (e.g., 1.9, 2.3-3.0, 3.6-4.7, 5-5.3 km/s).
• Survey conducted in a defined geographic area (Capel and Faust Basins, 800 km east of Australia).

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.
• Data is from a single 2006 survey; temporal coverage is limited.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

2006

Freshness

Last updated 2026-04-10 19:33:54.902997; freshness should be verified.

Geography

Capel and Faust Basins, 800 km east of Australia, in water depths of 1500-2000 m.