Cape Range Structure Geology: Stratigraphy and Micropalaeontology of Western Australia

Western Australia's Cape Range structure is an anticline at least eighty miles long and twenty miles wide, with a vertical closure of 1200 feet. The dataset describes five Tertiary formations, including the Mandu Calcarenite and Tulki Limestone, and estimates underlying sediment thicknesses up to 18,000 feet. It was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Modeling subsurface structure for oil and gas exploration based on described vertical closure and closed area.
• Analyzing stratigraphic sequences based on described Tertiary formations like the Mandu Calcarenite and Tulki Limestone.
• Studying paleoenvironments and depositional history based on micropalaeontological content.
• Assessing sediment thickness and basin geometry for geophysical investigations as suggested in the description.

Strengths

• Provides specific structural dimensions: at least 80 miles long, 20 miles wide, with 1200 feet of vertical closure.
• Describes detailed stratigraphy, including five named Tertiary formations with thickness ranges (e.g., 265 feet for Mandu Calcarenite).
• Includes estimates for underlying sediment thickness, suggesting up to 18,000 feet of Permian to Devonian sediments.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is provided as PDF/HTML documents, requiring extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Geological survey and analysis.

Time Range

Tertiary period (focus on Miocene and Pliocene), with underlying Cretaceous, Eocene, Permian, Carboniferous, and Devonian sediments.

Freshness

Last updated 2026-04-10 19:40:02.856320; freshness should be verified.

Geography

Cape Range structure, North-West Cape peninsula, Carnarvon Basin, Western Australia.