Geochemical Characteristics of Early Carboniferous Petroleum Systems in Western Australia

Geoscience Australia Data provides a geochemical study of petroleum systems in the onshore Canning Basin, Western Australia. The research establishes oil-oil correlations and evaluates potential source rocks within the latest Devonian–earliest Carboniferous succession. The dataset, last updated in 2026, compares the Ungani oilfield with the Larapintine 4 oil family using aromatic hydrocarbons, biomarker ratios, and stable carbon isotopes.

Use Cases

• Correlating oil families based on aromatic hydrocarbon concentrations and biomarker ratios described in the study.
• Evaluating potential source rock maturity and variations using hopane isomerisation ratios mentioned in the description.
• Distinguishing oil origins based on stable carbon isotope (δ13C) values for n-alkanes, pristane, and phytane as detailed in the research.
• Investigating unknown source rocks for oils with geochemical signatures not matching known formations like the Laurel or Gogo Formations.

Strengths

• Study is based on a specific geochemical analysis of the latest Devonian–earliest Carboniferous succession in the Canning Basin.
• Research compares multiple oil families (Ungani, Larapintine 4, Wattle-1 ST1) using distinct molecular and isotopic features.
• Dataset is associated with a peer-reviewed publication in Marine and Petroleum Geology, Volume 113, 2020.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical modeling.
• Description metadata is limited; actual data quality and completeness require manual inspection after download.

Provenance

Source

Geoscience Australia Data

Collection Method

A geochemical study involving analysis of aromatic hydrocarbons, saturated biomarker ratios, and stable carbon isotopes.

Time Range

Focuses on the latest Devonian–earliest Carboniferous geological succession.

Freshness

Last updated 2026-04-20 02:20:45.445326; freshness should be verified.

Geography

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