Australian Ocean Data Network hosts data on the Lower Cretaceous Eumeralla Formation in the Otway Basin. The dataset describes three distinct fluvial depositional systems (A-C) with measurements of thickness, palaeocurrent direction, and sedimentary facies. The data was last updated on 2026-05-05.
Use Cases
- Modeling fluvial depositional environments based on described facies associations and channel tract characteristics.
- Analyzing sediment provenance and mixing based on the proportions of basement-derived quartzose gravel and volcaniclastic sand.
- Reconstructing palaeogeography and drainage patterns based on the southerly, north-easterly, and northwest palaeocurrent vectors.
- Studying the impact of Aptian-Albian axial volcanism on basin sedimentation patterns as described in the accommodation model.
Strengths
- Distinguishes three discrete depositional systems (A-C) with specific geographic ranges.
- Provides concrete thickness measurements, such as sandstone bodies up to 70 m thick in system A.
- Includes detailed sedimentary data like palaeocurrent trends and the presence of coal beds, rooted horizons, and soil profiles.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to data_gov_au, focusing solely on the Otway Basin.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Data derived from outcrop studies in the eastern Otway Basin.
- Time Range
- Aptian-Albian (Lower Cretaceous)
- Freshness
- 2026-05-05 04:43:07.544745
- Geography
- Otway Basin, southern Australia, specifically areas between Cape Otway, Apollo Bay, Moonlight Head, Rotten Point, and north of Skenes Creek.