Sequence analysis and depositional models for the Permian Yessabah Limestone, a thick crinoidal limestone unit in the Manning-Macleay Basin of eastern Australia. The dataset is provided by the Australian Ocean Data Network and was last updated in April 2026. It describes the formation's deposition within a transgressive systems tract in a shallow-marine high-energy environment, following a major sea-level fall.
Use Cases
- Modeling sequence stratigraphy based on described lowstand, transgressive, and highstand systems tracts.
- Analyzing paleoenvironmental changes based on the shift from crinoid-rich to bryozoan-rich limestone units.
- Studying basin evolution based on the described transition from clastic rocks to limestone and back to distal turbidites.
Strengths
- Detailed geological description of a specific Permian limestone formation.
- Explicitly describes the formation's position within a major sea-level cycle and depositional sequence.
- Associated with the Australian Ocean Data Network, suggesting an authoritative source.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data is delivered as HTML and PDF files, which may require extraction for computational analysis.
Provenance
- Source
- Australian Ocean Data Network
- Time Range
- Permian period
- Freshness
- Last updated 2026-04-16 08:34:30.407433; freshness should be verified.
- Geography
- Manning-Macleay Basin, Hastings Block, northeastern New South Wales, eastern Australia