Geology of the Southern McArthur Basin: Stratigraphy and Structure

Mid-Proterozoic sedimentary rocks from the southern McArthur Basin in the Northern Territory, described in a geological bulletin. The data includes stratigraphic group thicknesses, rock type descriptions, and structural features like the Batten Fault Zone. It is provided by the Australian Ocean Data Network and was last updated on 2026-04-10.

Use Cases

• Modeling basin evolution based on described stratigraphic groups and unconformities.
• Analyzing depositional environments based on described rock types (e.g., evaporitic dolostones, orthoquartzites).
• Studying structural geology based on features like the Batten Fault Zone and wrench-faulting.
• Investigating mineral potential based on mentions of copper-bearing breccia pipes and iron formations.

Strengths

• Provides specific stratigraphic thicknesses (e.g., Tawallah Group ~4500m, Roper Group up to 2000m).
• Includes a precise U-Pb radiometric age of 1690±25 Ma from tuffs in the McArthur Group.
• Describes detailed geological features like rock types, depositional environments, and structural history.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is presented as PDF/HTML documents, not in a structured, machine-readable format.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely compiled from geological field studies and analysis, published as a bulletin.

Time Range

Mid-Proterozoic (covers rocks from ~1800 Ma to at least 1400 Ma, with younger outliers).

Freshness

Last updated 2026-04-10 17:02:12.964180; freshness should be verified.

Geography

Southern McArthur Basin, Northern Territory, Australia.