Arrinthrunga Formation: Upper Cambrian Carbonate Sequence in Central Australia

The Arrinthrunga Formation is an Upper Cambrian carbonate and mixed carbonate-siliciclastic sequence from the Georgina Basin in central Australia. It was deposited in a shallow, hypersaline epeiric sea, with sedimentation influenced by algal growth, shoaling, and intermittent emergence. The dataset is provided by Geoscience Australia Data and was last updated in April 2026.

Use Cases

• Modeling ancient shallow marine depositional environments based on described carbonate lithologies.
• Studying the influence of algal bioherms on carbonate platform development as described in the sequence.
• Analyzing the impact of climate and sea-level change on sedimentation patterns in epeiric seas.
• Reconstructing paleogeography and stratigraphic architecture of the Georgina Basin during the Cambrian.

Strengths

• Detailed geological description of a specific formation's depositional history and environmental controls.
• Sourced from the authoritative national geological survey, Geoscience Australia Data.
• Covers a specific and well-defined geological time period (Upper Cambrian).

Limitations

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

Provenance

Source

Geoscience Australia Data

Time Range

Upper Cambrian period

Freshness

Last updated 2026-04-20 02:30:42.287090; freshness should be verified.

Geography

Georgina Basin, central Australia