Houtman Sub-basin Geophysical Modelling Study with Seismic and Potential Field Data

An integrated geological and geophysical interpretation of the GA-349 seismic survey for the Houtman Sub-basin. The study uses 2D seismic reflection data from 2014/15 and about 26,000 km of gravity and magnetic data from 2008/09 surveys. It was published by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Model crustal structure and Moho depth based on integrated seismic and potential field data.
• Assess petroleum prospectivity by modeling sediment thickness and basement composition.
• Map the distribution and thickness of magmatic rocks like sills and dykes.
• Validate seismic interpretations of basin structure using gravity and magnetic datasets.

Strengths

• Integrates about 26,000 km of gravity and magnetic data with new 2D seismic reflection data.
• Focuses on a frontier basin with up to 19 km of sediment, relevant for resource assessment.
• Study aims are clearly defined, including modeling crustal structure and magmatic rock distribution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is provided in PDF format, which may limit direct machine-readability and analysis.
• Row count and sample data are unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Integrated interpretation of seismic, gravity, and magnetic surveys.

Time Range

Seismic data from 2014/15; gravity/magnetic data from 2008/09.

Freshness

Last updated 2026-06-05 07:26:50.902150; freshness should be verified.

Geography

Houtman Sub-basin, northern Perth Basin, offshore western Australia.