Palaeogeographic maps for South Perth Shale Supersequence in the Vlaming Sub-basin (Perth

Geoscience Australia produced palaeogeographic maps for the South Perth Shale Supersequence as part of a 2011 National CO2 Infrastructure Plan project. The maps depict the distribution and thickness of mudstone facies, which act as an effective sub-regional seal, to characterize CO2 containment potential in the Vlaming Sub-basin. The analysis is based on a sequence-stratigraphic approach and builds on prior assessments estimating the shale's capacity to hold a column of CO2 up to 663 meters.

Use Cases

• Assessing CO2 containment potential based on mapped mudstone facies distribution and thickness.
• Evaluating spatial variability in seal capacity for the South Perth Shale Supersequence across the basin.
• Supporting sequence-stratigraphic interpretations for deltaic successions with highly variable lithologies.
• Informing site selection for long-term CO2 storage based on the mapped effective sub-regional seal.

Strengths

• Produced by Geoscience Australia, a national geological survey, as part of a multi-year project.
• Analysis is based on a sequence-stratigraphic approach, providing a structured geological framework.
• Builds on prior quantitative estimates, such as a 663-meter CO2 column holding capacity.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Mapping via a sequence-stratigraphic approach as part of the National CO2 Infrastructure Plan.

Time Range

Project started in 2011; data reflects geological assessment of the South Perth Shale.

Freshness

Last updated 2026-04 20 01:26:49.082090; freshness should be verified.

Geography

Vlaming Sub-basin within the Perth Basin, Western Australia.