Arrinthrunga Formation: Upper Cambrian Carbonate Sequence in Central Australia

Geoscience Australia Data provides a detailed geological description of the Arrinthrunga Formation, a complex carbonate and mixed carbonate-siliciclastic sequence. The data describes deposition in a warm, arid, hypersaline epeiric sea, detailing the influence of filamentous algae, evaporite precipitation, and shifting environments like algal bioherms and ooid shoals. The dataset was last updated on March 25, 2026.

Use Cases

• Modeling ancient shallow-marine carbonate deposition based on described lithologies and facies.
• Studying paleoenvironmental controls on algal bioherm development as described in the sequence.
• Analyzing the impact of hypersaline conditions and evaporite formation on sedimentology.
• Reconstructing sea-level changes and prograding shoal sequences from the described stratigraphy.

Strengths

• Detailed geological description of a specific Upper Cambrian formation.
• Spatial coverage is clearly defined as the Georgina Basin in central Australia.
• Last update timestamp is precisely recorded as 2026-03-25 17:29:01.121103.

Limitations

• Row count and dataset scale are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to data_gov_au.

Provenance

Source

Geoscience Australia Data

Time Range

Upper Cambrian period

Freshness

Last updated 2026-03-25 17:29:01.121103; freshness should be verified.

Geography

Georgina Basin, central Australia