Geoscience Australia Data provides a study of the Early Cretaceous non-marine volcaniclastic Eumeralla Formation in the Otway Basin. The analysis identifies four basin-wide lithostratigraphic units and interprets their depositional environments, from coal swamps to high-energy stream channels. The dataset, last updated on 2026-03-25, includes interpretations linking sedimentation to Aptian-Albian sea-level changes and intrabasinal volcanism.
Use Cases
- Modeling rift basin depositional environments based on described lithostratigraphic units (Eumeralla I-IV).
- Correlating sedimentary facies with Aptian-Albian sea-level changes as mentioned in the description.
- Analyzing the influence of intrabasinal volcanism on basin drainage and sedimentation patterns.
- Stratigraphic correlation and mapping within the Otway Basin using the identified informal lithostratigraphic units.
Strengths
- Identifies four distinct lithostratigraphic units (Eumeralla I-IV) with interpreted depositional environments.
- Analysis is based on wireline-log analysis and a range of sedimentary data, including facies analysis of outcrops.
- The dataset has a specific last updated date of 2026-03-25 18:05:05.508696.
Limitations
- Row count and dataset size are unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- The primary file formats are PDF and HTML, which may require manual data extraction for computational analysis.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Wireline-log analysis and sedimentary facies analysis of outcropping units.
- Time Range
- Early Cretaceous (Aptian-Albian)
- Freshness
- Last updated 2026-03-25 18:05:05.508696; freshness should be verified.
- Geography
- Otway Basin, southern Australia