Palaeogeographic reconstructions: Revealing the lithological variability of the Gage Sands

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 is hosted by the Australian Ocean Data Network and was last updated in June 2026.

Use Cases

• Model reservoir geometry and connectivity based on mapped seismic facies and submarine fan deposits.
• Assess seal integrity for hydrocarbon plays based on the stratigraphic analysis of the South Perth Shale.
• Reconstruct sediment transport pathways based on documented northern and southern canyon contributions.
• Analyze sequence stratigraphy and depositional history based on mapped regressions and transgressions.

Strengths

• Core porosity and permeability ranges for the Gage Sandstone are provided (9.5-23.9% and 52-1340 mD).
• Analysis integrates multiple data sources: 2D seismic, well logs, and new biostratigraphic data.
• Reconstructions are high-resolution, based on seismic facies mapping and higher-order prograding packages.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Early Cretaceous

Freshness

Last updated 2026-06-05 06:43:47.475598; freshness should be verified.

Geography

Offshore Vlaming Sub-basin