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. These processed gravity line data measure subsurface rock density changes to reveal geological structure. The data were collected as part of the Australian Government's Offshore Energy Security Program and underwent quality checks by GA geophysicists.

Use Cases

• Model subsurface geological structure based on processed gravity anomaly data.
• Interpret rock density variations for resource exploration based on gravity measurements.
• Integrate gravity data with other survey types (e.g., seismic, magnetic) for a multi-physics subsurface model.
• Support pre-competitive analysis for offshore energy projects based on the survey's stated purpose.

Strengths

• Data quality was checked by Geoscience Australia geophysicists to ensure it is fit-for-purpose.
• Survey acquired a substantial 26,000 line-kilometres of gravity and magnetic data.
• Data were 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 size are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the specific 2008/2009 survey.

Provenance

Source

Geoscience Australia Data

Collection Method

Acquired via a marine survey as part of the Offshore Energy Security Program, processed via standard gravity data methods.

Time Range

2008/2009

Freshness

Last updated 2026-05-14 08:52:35.441633; freshness should be verified.

Geography

South West Margin, Australia (offshore)