Mount Isa Basin Architecture and Crustal Evolution, 1800-1600 Ma

Geoscience Australia Data provides a field guide documenting the 200-million-year geological evolution of the Mount Isa region in northern Australia. The record spans from 1800 to 1600 Ma, capturing intracontinental rifting, basin formation, and magmatism. The guide is based on mine visits and outcrop geology, detailing three stacked sedimentary basins and their transition from fluviatile-lacustrine to marine environments.

Use Cases

• Modeling basin evolution based on the described 200 Myr record of rifting and sedimentation.
• Studying crustal architecture based on the described North American Basin and Range-style analog.
• Analyzing magmatic and metamorphic processes based on the described link between basin evolution and bimodal magmatism.
• Correlating stratigraphic sequences based on the described three stacked superbasins separated by unconformities.

Strengths

• Covers a specific 200-million-year geological timeframe (1800-1600 Ma).
• Documents three distinct sedimentary superbasins (Leichhardt, Calvert, Isa) with defined age ranges.
• Based on direct geological investigation methods including mine visits and outcrop study.

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 the single Mount Isa study region.

Provenance

Source

Geoscience Australia Data

Collection Method

Field guide compiled from mine visits and outcrop geology.

Time Range

1800 to 1600 Ma (Paleoproterozoic to earliest Mesoproterozoic)

Freshness

Last updated 2026-04-20 02:18:40.210263; freshness should be verified.

Geography

Mount Isa region, northern Australia