Palaeogeographic reconstructions: Revealing the lithological variability of the Gage Sands

Geoscience Australia Data provides palaeogeographic reconstructions for the Early Cretaceous Gage Sandstone and South Perth Shale in the Vlaming Sub-basin. The dataset was created by integrating 2D seismic interpretation, well log analysis, and biostratigraphic data to map sediment supply and sea-level changes. It was last updated on 2026-04-30.

Use Cases

• Model reservoir properties based on reported 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 depositional environments based on seismic facies mapping of sand-rich submarine fan systems.
• Characterize sequence stratigraphy based on mapped higher-order prograding packages and relative sea-level changes.

Strengths

• Includes specific, measured reservoir properties: core porosities of 9.5-23.9% and permeabilities from 52-1340 mD.
• Derived from integrated analysis of 2D seismic, well logs, and new biostratigraphic data.
• Provides 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 is provided in PDF and HTML formats, which may require extraction for computational analysis.

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 2026-04-30 15:21:25.925934; freshness should be verified.

Geography

Offshore Vlaming Sub-basin