Geology of the Southern McArthur Basin: Stratigraphy and Structure

Geoscience Australia Data provides a geological bulletin describing the mid-Proterozoic sedimentary rocks of the southern McArthur Basin in Australia's Northern Territory. The description details four stratigraphic groups with thicknesses up to 12 kilometers, rock types including quartz sandstone, dolostones, and volcanics, and structural features like the Batten Fault Zone. The dataset was last updated on 2026-03 25.

Use Cases

• Stratigraphic correlation and modeling based on described group thicknesses and unconformities.
• Analyzing depositional environments based on described peritidal, lagoonal, and fluvial features.
• Studying basin structure and tectonic history based on the described Batten Fault Zone and wrench-faulting.
• Investigating mineral potential based on described copper-bearing breccia pipes and iron formations.

Strengths

• Provides specific geological measurements, including group thicknesses (e.g., Tawallah Group ~4500m, Roper Group up to 2000m).
• Includes a precise radiometric date for tuffs in the McArthur Group (U-Pb age of 1690±125 Ma).
• Describes a wide variety of rock types and structural features from a defined geographic area.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for quantitative analysis.
• The primary data format is documented text (HTML/PDF), not structured tabular data.

Provenance

Source

Geoscience Australia Data

Collection Method

Likely compiled from field surveys, mapping, and previous geological studies.

Time Range

Mid-Proterozoic, with specific rock units dated to approximately 1690 Ma and basement around 1800 Ma.

Freshness

Last updated 2026-03-25 16:30:34.885915; freshness should be verified.

Geography

Southern McArthur Basin, Northern Territory, Australia.