Cape Range Anticline Stratigraphy and Micropaleontology Report

A geological bulletin details the Cape Range anticline structure in Western Australia, a fold mountain with a vertical closure of 1200 feet and a closed area of 1200 square miles. The report 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 Geoscience Australia.

Use Cases

• Analyze the stratigraphic sequence of the Cape Range Group, including the Mandu Calcarenite and Tulki Limestone thicknesses.
• Model the structural geometry of the anticline using its reported 1200-foot vertical closure and 1200-square-mile closed area.
• Assess petroleum potential by evaluating the unrestricted drainage flanks and estimated underlying Cretaceous to Devonian sediment thicknesses.
• Correlate the Tertiary formations (e.g., Pilgramunna Formation, Vlaming Formation) with regional depositional histories of the Indo-Pacific geosyncline.

Strengths

• Provides specific quantitative structural measurements: 1200 feet of vertical closure and 1200 square miles of closed area.
• Details thickness ranges for key formations, such as 225 to 420 feet for the Tulki Limestone.
• Includes estimates for total underlying sediment column thickness, up to 18,000 feet.

Limitations

• Data is presented in report format (HTML/PDF), not as a structured, queryable table or database.
• Sample data and column definitions are unavailable, limiting direct computational analysis.
• The report focuses on a single geological structure, offering localized rather than regional insights.

Provenance

Source

Geoscience Australia Data

Collection Method

null

Time Range

Tertiary geological period, with underlying sediments from Permian to Cretaceous.

Freshness

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Geography

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