Browse Basin Hydrocarbon Sources via GCxGC-TOFMS and Diamondoid CSIA

Australian Ocean Data Network hosts a dataset analyzing hydrocarbon sources in the Browse Basin using comprehensive two-dimensional gas chromatography and compound-specific isotope analysis. The data likely contains measurements of diamondoid concentrations, ratios, and isotopic compositions from non-biodegraded and biodegraded oil fields. The dataset was last updated on June 5, 2026.

Use Cases

• Identify mixed hydrocarbon contributions to oil accumulations based on diamondoid concentrations and isotopic signatures.
• Distinguish between biodegraded and non-biodegraded oil sources using quantitative diamondoid analysis.
• Investigate gas escape from hydrocarbon structures based on discrepancies between diamondoid concentrations and recovered gas.
• Correlate biomarker parameters with diamondoid data to understand thermal maturity and source rock type.

Strengths

• Data is derived from advanced analytical techniques (GCxGC-TOFMS and CSIA) that minimize compound interference.
• Analysis includes diamondoids, which are described as source-specific and resistant to thermal maturity and biodegradation.
• Study compares specific oil fields (Caswell, Cornea, Gwydion) with different biodegradation states.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is provided in PDF format, which may complicate automated extraction and analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Chemical analysis via GCxGC-TOFMS and compound-specific isotope analysis (CSIA) of hydrocarbons and diamondoids from oil samples.

Freshness

Last updated 2026-06-05 07:24:35.399580; freshness should be verified.

Geography

Browse Basin, offshore Northwest Australia.