Geology of the Southern McArthur Basin: Stratigraphy and Structure

The Australian Ocean Data Network provides a geological bulletin describing the southern McArthur Basin in the Northern Territory. The bulletin details the mid-Proterozoic sedimentary sequence, divided into four stratigraphic groups with thicknesses up to 4500 meters, and discusses depositional environments and structural features like the Batten Trough. The dataset was last updated on 2026-04-28.

Use Cases

• Stratigraphic correlation and modeling based on described unconformities and group thicknesses.
• Analyzing depositional environments (peritidal, lagoonal, lacustrine) based on described rock types and features.
• Studying basin structure and tectonic history based on the described Batten Fault Zone and wrench-faulting.
• Investigating mineral resource potential (e.g., copper-bearing breccia pipes) based on described rock units.

Strengths

• Provides detailed geological descriptions of four stratigraphic groups with specific thicknesses (e.g., Tawallah Group ~4500m).
• Includes specific geochronological data, such as a U-Pb age of 1690±25 Ma for tuffs in the McArthur Group.
• Describes structural features with quantitative estimates, such as up to 12 km of sedimentary rock in the Batten Fault Zone horst.

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 a PDF/HTML bulletin, which may require manual extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely compiled from geological field studies and previous research, as it is a published bulletin.

Time Range

Mid-Proterozoic, with basement rocks about 1800 Ma old and sequences at least 1400 Ma old.

Freshness

Last updated 2026-04-28 12:57:36.922021; freshness should be verified.

Geography

Southern McArthur Basin, Northern Territory, Australia.