Cretaceous Stratigraphic Correlation of Southern Australia's Bight Basin

Southern Australia's Bight Basin contains a new stratigraphic interpretation of Cretaceous sedimentary rocks from petroleum wells and water bores. The record, presented by the Australian Ocean Data Network, correlates onshore and offshore sections using biostratigraphic and seismic data. It identifies organic-rich shale sequences from the Valanginian to Campanian stages, with a maximum thickness exceeding 357 meters in the Madura 1 well.

Use Cases

• Modeling basin evolution based on sequence stratigraphic framework and depositional environment descriptions.
• Assessing petroleum source rock potential based on identified organic-rich shale facies.
• Correlating onshore and offshore geological sections based on biostratigraphic and seismic data interpretations.
• Studying Cretaceous paleoenvironmental changes from non-marine to marine conditions described in the record.

Strengths

• Interpretation is based on multiple data sources, including petroleum wells, stratigraphic holes, water bores, biostratigraphy, and seismic data.
• Identifies specific maximum thickness of more than 357 meters in the Madura 1 well.
• Defines temporal coverage from Valanginian to Campanian stages within the Cretaceous period.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is delivered as PDF/HTML reports, not in a structured, machine-readable format.

Provenance

Source

Australian Ocean Data Network

Collection Method

Interpretation of data from petroleum exploration wells, stratigraphic holes, water bores, biostratigraphy, and seismic surveys.

Time Range

Cretaceous period, specifically Valanginian to Campanian stages.

Freshness

Last updated 2026-04-10 19:09:52.800745; freshness should be verified.

Geography

Bight Basin, along the southern coast of Australia in Western Australia and South Australia.