Eastern Australia 3D Geological and Hydrogeological Surfaces Update, Version 2.0

Eastern Australian basins, from the Gulf of Carpentaria to the Bight, Otway, and Gippsland basins, are covered by this second iteration of 3D geological and hydrogeological surfaces. The dataset, produced by Geoscience Australia's Exploring for the Future Program, updates surface extents and thicknesses for 18 region-wide hydrogeological units. It incorporates new borehole data and aims to unify geology across borders for a consistent basin-wide hydrogeological framework.

Use Cases

• Model groundwater flow and storage based on updated 3D hydrogeological unit surfaces.
• Reconcile regional geological studies based on the common stratigraphic framework described.
• Support resource assessment and management decisions based on the integrated basin-wide geological context.
• Fill data and knowledge gaps in basin analysis based on the incorporation of new borehole and seismic data.

Strengths

• Covers a large study area extending across onshore and offshore eastern Australian basins.
• Updates 18 specific hydrogeological units, providing a detailed regional framework.
• Incorporates multiple data types, including legacy borehole data, 2D seismic, and airborne electromagnetic (AEM) data.

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.
• Data may reflect geographic bias inherent to the specific eastern Australian basins covered.

Provenance

Source

Geoscience Australia's Exploring for the Future Program, National Groundwater Systems Project.

Collection Method

Constructed using compiled legacy borehole data, 2D seismic, AEM data, and new QC'd borehole data.

Time Range

Covers geological units from the Permian to the Cenozoic, though specific temporal coverage is not detailed.

Freshness

Last updated 2026-04-10 18:16:55.758292; freshness should be verified.

Geography

Eastern Australia, from the offshore Gulf of Carpentaria in the north to the offshore Bight, Otway, and Gippsland basins in the south, and from the western edge of the Great Artesian Basin to the eastern coastline.