Sequence Stratigraphic Correlation of Onshore and Offshore Bight Basin Successions : South

Southern Australia's Bight Basin contains a Cretaceous sedimentary record interpreted from petroleum wells, stratigraphic holes, and water bores. The record spans from Valanginian to Campanian age, reaching over 357 meters thick in the Madura 1 well, and documents a transition from non-marine to marine depositional environments. This interpretation by Geoscience Australia integrates biostratigraphic and seismic data to correlate onshore and offshore sections, identifying potential organic-rich source rocks.

Use Cases

• Modeling basin evolution and depositional environments based on described sequence stratigraphic framework.
• Assessing hydrocarbon source rock potential based on identified organic-rich shale and marine facies.
• Correlating stratigraphic units across onshore and offshore domains using integrated biostratigraphic and seismic data.
• Studying paleoenvironmental changes from Early to Late Cretaceous based on the described transition from non-marine to marine conditions.

Strengths

• Interpretation integrates multiple data sources, including biostratigraphic data and seismic interpretation.
• Identifies specific geologic time ranges (Valanginian to Campanian) and supersequence names (e.g., Bronze Whaler).
• Provides a concrete maximum thickness measurement of more than 357 meters from the Madura 1 well.
• Focuses on a defined geographic region along the southern Australian coast in Western Australia and South Australia.

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 in PDF/HTML reports, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

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

Time Range

Cretaceous period (Valanginian to Campanian stages)

Freshness

Last updated 2026-04-30 12:52:17.204245; freshness should be verified.

Geography

Bight Basin, southern coast of Australia (Western Australia and South Australia)