Hydrocarbon Source Analysis in Browse Basin Using GCxGC and Diamondoids

A geochemical study combines GCxGC-TOFMS and compound-specific isotope analysis to identify multiple hydrocarbon sources in Australia's Browse Basin. The dataset likely contains quantitative measurements of diamondoids, n-alkanes, and aromatic hydrocarbons from non-biodegraded and biodegraded oil fields. It was published by the Australian Ocean Data Network and last updated in June 2026.

Use Cases

• Identify mixed hydrocarbon sources based on diamondoid concentrations and isotopic signatures.
• Assess thermal maturity and biodegradation levels of oil accumulations using biomarker and diamondoid parameters.
• Reconstruct basin charge history by correlating fluid properties with geological sequences.

Strengths

• Analysis uses GCxGC-TOFMS, which minimizes interference from co-eluting compounds.
• Diamondoid parameters are described as source-specific and resistant to thermal maturity and biodegradation.
• Study compares data from both non-biodegraded (Caswell) and biodegraded (Cornea, Gwydion) oil fields.

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

Comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GCxGC-TOFMS) and compound-specific isotope analyses (CSIA).

Freshness

Last updated 2026-06-16 20:25:55.556651; freshness should be verified.

Geography

Browse Basin, offshore Northwest region of Australia.