A detailed lithostratigraphic analysis of the Early Cretaceous Eumeralla Formation, a non-marine volcaniclastic unit in southern Australia. The dataset, from Geoscience Australia, identifies four basin-wide informal units and interprets their depositional environments. The analysis links sedimentary facies to Aptian-Albian sea-level changes and the influence of intrabasinal volcanism.
Use Cases
- Modeling rift basin drainage evolution based on the basin-wide extent of lithostratigraphic units.
- Reconstructing paleoenvironments based on described facies like coal swamps, flood plains, and freshwater lakes.
- Correlating sedimentary sequences with global sea-level changes based on the Aptian-Albian correlation mentioned.
- Analyzing the influence of volcanism on sedimentation patterns in a non-marine rift setting.
Strengths
- Analysis is based on wireline-log data and sedimentary facies analysis from outcrops.
- Discriminates three major basin-wide lithostratigraphic units with a fourth in the western basin.
- Provides environmental interpretations for each unit, from low-energy streams to high-energy channel tracts.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data files are in PDF and HTML formats, which may require extraction for computational analysis.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Wireline-log analysis and sedimentary facies analysis of outcrops.
- Time Range
- Early Cretaceous (Aptian-Albian)
- Freshness
- Last updated 2026-04-20 03:07:57.895841; freshness should be verified.
- Geography
- Otway Basin, southern Australia