Geophysical Survey Data from Australia's Capel and Faust Basins

800 kilometers east of Brisbane, this collection contains integrated 2D seismic reflection, sonobuoy refraction, and marine potential-field data from deep-water basins. The Australian Ocean Data Network provides this dataset for the remote Capel and Faust Basins, located in 1000-3000 meters of water. It was last updated in April 2026.

Use Cases

• Model 3D fault and horizon surfaces by integrating 2D seismic reflection lines with gravity and magnetic potential-field data.
• Characterize different basement terranes through forward and inverse 3D modeling of gravity and magnetic anomalies.
• Interpret syn-rift and post-rift sedimentary packages, such as the four main syn-rift megasequences, using seismic reflection data.
• Analyze the correlation between negative residual gravity anomalies and basin depocentres evident in seismic data.
• Map the distribution of volcanics and intrusives by interpreting reduced-to-pole positive magnetic anomalies.

Strengths

• Data integrates multiple geophysical methods: 2D seismic reflection, sonobuoy refraction, and marine potential-field (gravity and magnetic) measurements.
• Covers a significant offshore area in the remote eastern Australian frontier, with water depths ranging from 1000 to 3000 meters.
• Supports 3D mapping and modeling of subsurface structures despite 2D seismic lines having a 20-50 km separation.

Limitations

• Spatial coverage is constrained to 2D seismic lines, creating gaps and complicating correlation between isolated basin depocentres.
• The primary data format is HTML, which may contain interpretive reports rather than raw, machine-readable data files.
• Temporal coverage for the geological sequences is estimated (e.g., ?Early Cretaceous-?Santonian), indicating some dating uncertainty.

Provenance

Source

Australian Ocean Data Network, likely associated with the Australian Government's Energy Security Initiative.

Collection Method

Acquired through marine geophysical surveys including seismic reflection profiling, sonobuoy deployments, and potential-field data collection.

Time Range

Geological sequences interpreted from ?Early Cretaceous to Recent; survey data collection date is unspecified.

Freshness

Last updated in April 2026.

Geography

Capel and Faust Basins, located approximately 800 km east of Brisbane in Australia's eastern offshore frontier.