Geological Evolution and Mineral Deposits of the Lawn Hill Platform

Three stratigraphic subdivisions characterize the Lawn Hill Platform Cover in northwest Queensland: the Bigie Formation and Fiery Creek Volcanics, the Surprise Creek Formation, and the McNamara Group. The Australian Ocean Data Network published this analysis, which details the platform's structure, deformation, and economic potential. The record was last updated in April 2026.

Use Cases

• Identify stratigraphic horizons for Cu, Pb, Zn sulphide deposits within the lower middle McNamara Group.
• Analyze the relationship between deposit formation and specific rock types like carbonaceous shales or laminated algal dolomite.
• Map structural features such as basins, domes, and northeast/northwest-trending faults affecting the platform cover.
• Correlate sedimentary sequences from basal clastics through carbonate packages to deep-water clastics for basin modeling.

Strengths

• Analysis defines three clear stratigraphic subdivisions with named formations and groups.
• Identifies two main stratigraphic horizons for economic sulphide deposits with associated rock types.

Limitations

• Data is presented as a descriptive report (PDF/HTML) without underlying structured tables or measurements.
• No sample data, row counts, or quantified geochemical data are provided for statistical analysis.
• Geographic coverage is limited to a single platform in northwest Queensland.

Provenance

Source

Australian Ocean Data Network.

Collection Method

Geological analysis and synthesis published as an external journal article.

Time Range

Proterozoic era.

Freshness

Record metadata indicates an update in April 2026.

Geography

Lawn Hill Platform, northwest Queensland, Australia.