Geochemical comparisons between asphaltites on the southern Australian margin and source rock analogues of Early Cretaceous age are presented. The dataset likely contains geochemical and isotopic measurements used to argue for a mid-Cretaceous source for the asphaltites. The article was prepared for the Eastern Australian Basins Symposium in 2001.
Use Cases
- Identify hydrocarbon source rock age based on biomarker signatures like C30 methylsteranes and C26 norsteranes.
- Compare depositional environments using metalloporphyrin presence as an indicator of anoxic bottom waters.
- Establish genetic links between asphaltites and source rocks through pyrolysis of polar fractions.
- Analyze marine vs. terrestrial organic matter inputs using carbon isotope and biomarker distributions.
Strengths
- Focuses on a specific geological comparison between asphaltites and Cretaceous source rocks.
- Uses diverse geochemical signatures including carbon isotopes and age-diagnostic biomarkers.
- Article was prepared for a professional symposium, suggesting peer-reviewed context.
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 data_gov_au, focusing on Australian basins.
Provenance
- Source
- Australian Ocean Data Network
- Freshness
- Last updated 2026-05-05 00:29:57.015969; freshness should be verified.
- Geography
- Southern Australian margin, Bight Basin, Eromanga Basin