Crustal Transects of the Great Australian Bight: Seismic Survey Proposal

Geoscience Australia Data provides a proposal for acquiring 4,087 km of deep-seismic data in the Great Australian Bight. The survey aims to support petroleum exploration, an Ocean Drilling Program proposal, and Australia's continental shelf claim under UNCLOS. The data was last updated on 2026-03-25.

Use Cases

• Modeling tectonic evolution and detachment surfaces based on deep crustal structure data.
• Determining the continent-ocean boundary location based on seismic and magnetic data interpretations.
• Analyzing the structure of the Diamantina Zone based on its relationship to seafloor spreading rate changes.
• Supporting petroleum exploration acreage release programs based on enhanced understanding of the margin's event history.

Strengths

• Proposes acquisition of 4,087 km of deep-seismic data with a 16-second record length.
• Integrates legacy seismic refraction data from the Lamont-Doherty Geological Observatory (1976).
• Describes three specific scientific aims related to crustal structure, continent-ocean boundary, and the Diamantina Zone.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is presented as a proposal (PDF/HTML), not as a raw, structured dataset.

Provenance

Source

Geoscience Australia Data

Collection Method

Proposed acquisition via the AGS0 research vessel Rig Seismic.

Freshness

Last updated 2026-03-25 17:14:30.359768; freshness should be verified.

Geography

Central Great Australian Bight and continental margin south of Western Australia.