Palaeogeographic reconstructions: Revealing the lithological variability of the Gage Sands

Offshore Vlaming Sub-basin features palaeogeographic reconstructions for the Early Cretaceous Gage Sandstone and South Perth Shale reservoir-seal pair. The dataset was created by Geoscience Australia Data, integrating 2D seismic interpretation, well log analysis, and biostratigraphic data. It was last updated on 2026 05 14.

Use Cases

• Model reservoir properties based on described core porosities of 9.5-23.9% and permeabilities from 52-1340 mD.
• Analyze sediment transport pathways based on described complex directions from northern and southern canyons.
• Reconstruct sequence stratigraphy based on mapped prograding packages and changes in relative sea level.
• Characterize submarine fan systems based on described canyon-confined inner fan to basin plain middle fan deposits.

Strengths

• Integrates multiple data sources including 2D seismic, well logs, and new biostratigraphic data.
• Provides specific reservoir property ranges: porosity 9.5-23.9% and permeability 52-1340 mD.
• Offers high-resolution reconstructions based on seismic facies mapping.

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 the specific offshore sub-basin study area.

Provenance

Source

Geoscience Australia Data

Collection Method

Sequence stratigraphic analysis integrating 2D seismic interpretation, well log analysis, and new biostratigraphic data.

Time Range

Early Cretaceous

Freshness

Last updated 2026-05-14 09:28:17.121201; freshness should be verified.

Geography

Offshore Vlaming Sub-basin