Early Cretaceous non-marine volcaniclastic sediments accumulated in the Otway Basin during the break-up of eastern Gondwana. The dataset, from the Australian Ocean Data Network, describes three major basin-wide lithostratigraphic units (Eumeralla I-III) and a fourth western unit (Eumeralla IV), interpreted as representing coal swamps, flood plains, and lake environments. The analysis is based on wireline-log data and sedimentary facies analysis of outcropping units.
Use Cases
- Modeling basin-wide drainage system evolution based on the described lithostratigraphic units.
- Correlating sedimentary facies and depositional environments with Aptian-Albian sea-level changes.
- Analyzing the influence of intrabasinal volcanism on sedimentation patterns and basin drainage.
- Stratigraphic correlation and mapping within the Otway Basin based on the defined Eumeralla I-IV units.
Strengths
- Describes three major basin-wide lithostratigraphic units with interpreted depositional environments.
- Analysis incorporates wireline-log data and sedimentary facies analysis from outcrops.
- Links lithological variations to Aptian-Albian sea-level changes.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data is presented in HTML and PDF formats, which may require extraction for computational analysis.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Wireline-log analysis and sedimentary facies analysis of outcropping units.
- Time Range
- Early Cretaceous (Aptian-Albian)
- Freshness
- Last updated 2026-04-16 09:04:36.882908; freshness should be verified.
- Geography
- Otway Basin, southern Australia