GA310 South West Margin: Offshore Gravity Survey Data from 2008/2009

26,000 line-kilometres of gravity and magnetic data were acquired for Geoscience Australia in 2008/2009. The data measures density changes in subsurface rocks and was processed via standard methods and quality-checked by GA geophysicists. This pre-competitive survey was part of the Australian Government's Offshore Energy Security Program.

Use Cases

• Modeling subsurface geological structures based on processed gravity data.
• Integrating gravity data with other geophysical measurements like seismic reflection and swath bathymetry for a comprehensive subsurface interpretation.
• Supporting offshore energy security assessments by revealing the density structure of the Earth's crust.

Strengths

• Data quality was checked by Geoscience Australia geophysicists to ensure it is fit-for-purpose.
• The survey acquired a substantial 26,000 line-kilometres of gravity and magnetic data.
• Data was processed via standard methods to isolate the response from subsurface rocks.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Acquired via a marine survey as part of the Offshore Energy Security Program, using standard geophysical data collection and processing methods.

Time Range

2008/2009

Freshness

Last updated 2026-04-30 14:33:26.384988; freshness should be verified.

Geography

South West Margin, Australia (offshore)