Houtman Sub-basin Geophysical Modelling Study with GA-349 Seismic Survey

The Houtman Sub-basin geophysical modelling study is an integrated geological and geophysical interpretation of the GA-349 seismic survey conducted in 2014/15. Australian Ocean Data Network provides this study, which integrates about 26,000 km of gravity and magnetic data from surveys GA-310 and GA-2476. The study aims to improve understanding of crustal architecture, sediment thickness, and magmatic rock distribution in the northern Perth Basin.

Use Cases

• Validate seismic interpretation of crustal structure based on potential field modelling.
• Model density variations within the sedimentary section to assess hydrocarbon maturation.
• Investigate the depth and extent of intrabasinal magmatic rocks identified on seismic data.
• Assess basin structure and petroleum prospectivity by integrating gravity and magnetic datasets.

Strengths

• Integrates about 26,000 km of new gravity and magnetic data from dedicated surveys.
• Focuses on a frontier basin with up to 19 km of sediment, providing a detailed regional study.
• Uses new 2D seismic reflection data (GA-349) to re-assess petroleum prospectivity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is presented in PDF format, which may limit direct computational analysis.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Integrated interpretation of seismic, gravity, and magnetic surveys.

Time Range

Seismic survey GA-349 conducted in 2014/15; gravity/magnetic surveys GA-310 and GA-2476 conducted in 2008 and 2009.

Freshness

Last updated 2026-04-16 15:18:24.191493; freshness should be verified.

Geography

Houtman Sub-basin, northern Perth Basin, western margin of Australia.