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

Geoscience Australia's GA310 South West Margin 2D MSS survey acquired 26,000 line-kilometres of gravity and magnetic data in 2008/2009 under the Offshore Energy Security Program. The gravity data measures subsurface rock density variations and has been processed and quality-checked by GA geophysicists to reveal geological structures. This pre-competitive dataset also includes seismic reflection, swath bathymetry, and seafloor dredge samples.

Use Cases

• Model subsurface geological structures based on processed gravity anomaly data.
• Correlate gravity measurements with other geophysical data like magnetic and seismic reflection mentioned in the survey.
• Support offshore energy resource exploration based on pre-competitive geological data from the Australian Government program.
• Interpret seafloor and sub-surface composition by integrating gravity data with swath bathymetry and dredge samples.

Strengths

• 26,000 line-kilometres of gravity and magnetic data were acquired.
• Data was processed and quality-checked by Geoscience Australia geophysicists.
• Acquired as part of a government-funded Offshore Energy Security Program, suggesting a defined purpose.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and specific file size are unknown, which may limit suitability assessment.
• Data may reflect geographic/temporal bias inherent to the specific 2008/2009 survey.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Acquired via a marine survey vessel as part of the GA310 South West Margin 2D MSS survey.

Time Range

2008/2009

Freshness

Last updated 2026-04-16 09:43:13.266329; freshness should be verified as the underlying data is from 2008/2009.

Geography

South West Margin, Australia (offshore region).