Geology of the Birdsville 4-Mile Sheet Area, Queensland

Queensland's Birdsville 4-mile sheet area features a sequence of at least 3,000 feet of Mesozoic sediments and up to 100 feet of Tertiary rocks. The data, from Geoscience Australia, describes the geology of the western Great Artesian Basin, including aquifer characteristics and potential petroleum source rocks. It was last updated on 2026-04-30.

Use Cases

• Model regional groundwater aquifers based on described Mesozoic rock sequences and impermeable cap.
• Assess petroleum source rock potential based on the described marine shales of the Wilgunya Formation.
• Map subsurface stratigraphy using the described sequence of Mesozoic and Tertiary sediments.
• Evaluate reservoir rock characteristics for the described Lower Cretaceous Longsight Sandstone.

Strengths

• Describes a specific, quantified geological sequence of at least 3,000 feet of Mesozoic sediments.
• Identifies specific geological formations (e.g., Wilgunya Formation, Longsight Sandstone) and their properties.
• Provides concrete spatial references, such as distances to showings in the Bedourie Bore and Delhi Frome Santos Betoota No. 1 Well.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on a single mapped sheet area.

Provenance

Source

Geoscience Australia Data

Collection Method

Mapping of the Birdsville 4-mile Sheet area and examination of water bore logs.

Freshness

Last updated 2026-04-30 13:57:54.752071; freshness should be verified.

Geography

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