Victorian Otway Basin Structural Elements for Geological Mapping

Victoria's Otway Basin is the focus of this geospatial dataset defining major geological structural elements. The Geological Survey of Victoria created it as part of the Victorian Gas Program, using new airborne gravity data and a 3D geological framework model to define boundaries. The dataset provides a consistent reference for future mapping and modelling studies of the basin's petroleum systems.

Use Cases

• Map the spatial distribution of Early and Late Cretaceous depocentres based on the defined structural elements.
• Model petroleum prospectivity by integrating defined platforms and basement highs with other geological data.
• Establish a consistent naming and boundary reference for geological features like the Penola Trough or Port Campbell Embayment.
• Refine geological interpretations in areas of limited data by using the provided structural framework as a baseline.

Strengths

• Data is based on new interpretations from the Victorian Gas Program, including airborne gravity data and a 3D geological framework model.
• Provides a standardized set of names and georeferenced boundaries for structural elements where previous definitions were inconsistent.
• Released under a permissive CC-BY-4.0 license, allowing for broad reuse and adaptation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• The authors note the structural elements are not a definitive list and may require refinement with new data.

Provenance

Source

Geological Survey of Victoria, Department of Jobs, Precincts and Regions.

Collection Method

Interpretation of airborne gravity data, 3D geological models, and existing literature to define georeferenced polygons.

Freshness

Last updated 2026-04-09 02:03:14.365456; freshness should be verified.

Geography

Victorian Otway Basin, onshore and offshore within Victoria's jurisdiction, Australia.