Geoscience Australia's evaluation covers the Georgina Basin, an area of approximately 325,000 square kilometers. The assessment focuses on Middle Cambrian source rocks, including the Thorntonia Limestone and Arthur Creek Formation, and uses methodology developed by the United States Geological Survey. It relies on updated stratigraphy, tectonic history, petrography, geochemistry, and petroleum systems modelling.
Use Cases
- Estimating shale gas/oil resource potential based on basin-wide oil staining and proven petroleum systems.
- Modeling hydrocarbon migration distances based on descriptions of short migration and hybrid unconventional systems.
- Analyzing source rock maturity and richness based on Rock Eval, FAMM, and isotopic data mentioned in the description.
- Identifying geochemical signatures of biodegradation based on described isotopic depletion and biomarker abundances.
Strengths
- Assessment covers a basin area of approximately 325,000 square kilometers.
- Description includes specific geochemical metrics, such as TOC up to 15.5% and HI up to 500 mg hydrocarbons/g TOC for a 'hot shale' unit.
- Methodology is based on United States Geological Survey practices and uses basin analogues.
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 basin study.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Systematic evaluation using stratigraphy, tectonic history, petrography, geochemistry, and petroleum systems modelling.
- Freshness
- Last updated 2026-05-05 03:09:05.998004; freshness should be verified.
- Geography
- Georgina Basin in south-central Australia