Early Carboniferous Petroleum Geochemistry in Western Australia

Geoscience Australia Data provides a geochemical study of petroleum systems in the onshore Canning Basin. The research establishes oil-oil correlations and evaluates potential source rocks within the latest Devonian–earliest Carboniferous succession. It distinguishes oil families using aromatic hydrocarbons, biomarker ratios, and stable carbon isotopes.

Use Cases

• Correlate oil families like Larapintine 4 (L4) and Ungani using aromatic hydrocarbons and biomarker ratios.
• Evaluate source rock potential by analyzing stable carbon isotope (δ13C) values for n-alkanes, pristane, and phytane.
• Assess oil maturity and source variations through hopane isomerisation ratios.
• Distinguish geochemical signatures between oil families based on concentrations of paleorenieratane and isorenieratane.

Strengths

• Data originates from a peer-reviewed study published in Marine and Petroleum Geology (Volume 113, 2020).
• Analysis covers multiple geochemical proxies including aromatic hydrocarbons, biomarker ratios, and stable carbon isotopes.
• Study focuses on a defined geological timeframe (latest Devonian–earliest Carboniferous) and location (Canning Basin, Western Australia).

Limitations

• The dataset's underlying tabular structure, row count, and specific columns are not provided in the input.
• Sample data is unavailable, limiting immediate analytical utility without accessing the original publication.
• Source rocks for the Ungani and Wattle-1 ST1 oils remain unidentified according to the study.

Provenance

Source

Geoscience Australia Data, based on research published in Marine and Petroleum Geology.

Collection Method

Geochemical study analyzing oil and source rock samples.

Time Range

Latest Devonian–earliest Carboniferous (Famennian–Tournaisian) succession.

Freshness

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Geography

Onshore Canning Basin, Western Australia, specifically the Fitzroy Trough and Lennard Shelf.