Great Australian Bight Seismic Transects for Ocean Drilling and Law of the Sea

A cruise proposal from the Australian Ocean Data Network outlines plans to acquire 4087 km of deep-seismic data in the Great Australian Bight. The data aims to support the Ocean Drilling Program, petroleum exploration, and Australia's claim to a Legal Continental Shelf under UNCLOS. The proposal was last updated in April 2026.

Use Cases

• Modeling tectonic evolution and margin formation based on deep crustal structure transects.
• Identifying the continent-ocean boundary based on seismic and magnetic data interpretations.
• Analyzing the structure of the Diamantina Zone to understand its relationship to seafloor spreading rate changes.
• Supporting petroleum exploration prospectivity assessments for the Acreage Release Program.

Strengths

• Proposes acquisition of 4087 km of deep-seismic data with a 16-second record length.
• Integrates legacy seismic refraction data from the Lamont-Doherty Geological Observatory (1976).
• Explicitly links data collection to three defined scientific and legal objectives.

Limitations

• Dataset is a proposal; the actual seismic data files may not be included.
• Column-level documentation and sample data are unavailable.
• Row count and specific file formats for the underlying data are unknown.

Provenance

Source

Australian Ocean Data Network

Collection Method

Proposed acquisition via the AGS0 research vessel Rig Seismic.

Freshness

Last updated 2026-04-16 16:36:22.359542; freshness should be verified.

Geography

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