Upper Cambrian Carbonate Sequence Geology of the Georgina Basin

A geological bulletin from Geoscience Australia describes the Arrinthrunga Formation, an Upper Cambrian carbonate and mixed carbonate-siliciclastic sequence. The publication details its deposition in a shallow, hypersaline epeiric sea in central Australia, with specific facies like algal bioherms, peloid shoals, and evaporite pans.

Use Cases

• Analyze the distribution of algal bioherms and peloid-ooid sands to model ancient shallow marine environments.
• Study the sequence of evaporite pans and algal mats to interpret paleoclimate conditions of warm aridity.
• Map the progradation of quartz-ooid shoals and terrigenous sands to reconstruct lateral nearshore environment migration.
• Correlate transgression and regression events with the establishment of specific lithologies like gypsiferous algal mats.

Strengths

• Publication provides a detailed facies analysis of a complex carbonate sequence.
• Description includes specific paleoenvironmental controls like restricted tidal movement and hypersaline conditions.

Limitations

• Data is presented as a descriptive geological bulletin in HTML/PDF format, not as a structured, queryable dataset.
• No quantitative tabular data (rows, columns) or sample data is available for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

null

Time Range

Upper Cambrian period

Freshness

null

Geography

Georgina Basin, central Australia