Permian Yessabah Limestone Sequence Analysis and Depositional Models

Geoscience Australia Data provides a geological analysis of the Permian Yessabah Limestone formation in the Manning-Macleay Basin. The description details a thick crinoidal limestone unit deposited in a shallow-marine high-energy environment as part of a transgressive systems tract. This dataset was last updated on 2026-04-30.

Use Cases

• Modeling sea-level change and depositional sequences based on described systems tracts (lowstand, transgressive, highstand).
• Analyzing faunal assemblage shifts based on the described alternation between crinoid-rich and bryozoan-rich units.
• Studying the transition from clastic to carbonate depositional environments described for the Hastings Block.

Strengths

• Detailed geological process description for a specific formation.
• Sourced from Geoscience Australia Data, a national geological authority.
• Last updated date is provided (2026-04-30).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data files are in PDF/HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Time Range

Permian period

Freshness

Last updated 2026-04-30 13:05:11.368026

Geography

Manning-Macleay Basin, Hastings Block, northeastern New South Wales, eastern Australia