GA310 South West Margin: Offshore Magnetic Survey Data

26,000 line-kilometres of total magnetic intensity data were acquired for Geoscience Australia in 2008/2009. The processed data measures variations in the Earth's magnetic field to reveal sub-surface geological structure and was quality-checked by GA geophysicists. This line dataset was collected as part of the Australian Government's Offshore Energy Security Program.

Use Cases

• Map geological structures based on magnetic anomaly data.
• Identify potential resource deposits based on magnetic susceptibility contrasts in rock.
• Integrate magnetic data with other geophysical surveys like gravity and seismic reflection for comprehensive subsurface analysis.
• Calibrate regional magnetic field models using processed, quality-checked line data.

Strengths

• 26,000 line-kilometres of magnetic and gravity data provide substantial spatial coverage.
• Data underwent standard processing and quality checks by Geoscience Australia geophysicists.
• Acquired as part of a coordinated pre-competitive data program (Offshore Energy Security Program).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-06-05 07:57:34.019012; freshness should be verified.

Provenance

Source

Geoscience Australia via the Australian Ocean Data Network

Collection Method

Acquired via marine survey as part of the Offshore Energy Security Program.

Time Range

2008/2009

Freshness

Last updated 2026-06-05 07:57:34.019012

Geography

South West Margin, offshore Australia