Geology of the Birdsville 4-Mile Sheet Area, Queensland

A geological report from the Australian Ocean Data Network details the stratigraphy and resource potential of a region within the Great Artesian Basin. The mapping and bore log analysis established a sequence of over 3,000 feet of Mesozoic sediments and up to 100 feet of Tertiary rocks. The report, last updated in April 2026, identifies aquifer formations and potential petroleum source rocks but notes no significant structures or economic mineral deposits in the area.

Use Cases

• Model regional aquifer systems based on described Mesozoic rock formations and their impermeable cap.
• Assess petroleum source rock potential based on the described marine shales of the Wilgunya Formation.
• Correlate regional stratigraphy using the described sequence of Mesozoic and Tertiary sediments.
• Evaluate groundwater resource potential in the western Great Artesian Basin based on the identified main aquifer.

Strengths

• Report is based on field mapping and examination of water bore logs, providing a field-verified foundation.
• Includes specific quantitative measurements, such as a sediment sequence of at least 3,000 feet and a Tertiary rock maximum thickness of 100 feet.
• Provides geographically specific references to formations (e.g., Wilgunya Formation, Longsight Sandstone) and locations (e.g., Bedourie Bore).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Field mapping and examination of water bore logs.

Time Range

null

Freshness

Last updated 2026-04-28 13:55:39.841878; freshness should be verified.

Geography

Birdsville 4-mile sheet area, Queensland, Australia, within the western portion of the Great Artesian Basin.