Browse Basin Petroleum Fluid Geochemistry Using Diamondoids and Semi-Volatile Aromatics

Geochemical data from whole oil and condensate samples in Australia's Browse Basin, analyzed using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOFMS). The dataset includes measurements of diamondoids, semi-volatile aromatic compounds, aromatic maturity ratios, and stable carbon isotopic compositions for selected compounds. It was published in the journal Marine and Petroleum Geology in 2020 and is hosted by the Australian Ocean Data Network.

Use Cases

• Correlating hydrocarbon fluids to specific source rocks based on diamondoid and semi-volatile aromatic compound signatures.
• Identifying mixed-source accumulations within a basin using compound-specific stable carbon isotopic data.
• Assessing the maturity level of petroleum fluids using concentrations of methyladamantanes and methyldiamantanes.
• Reconstructing complex hydrocarbon charge histories for fields like Cornea, Gwydion-1, Mimia-1, and Concerto-1.

Strengths

• Analysis utilizes compounds representing a significant proportion of the bulk fluid (semi-volatile aromatics and diamondoids), unlike minor biomarker fractions.
• Data provides evidence for multiple hydrocarbon sources in several Browse Basin accumulations, including the Yampi Shelf.
• Specific source rock formations are identified, such as the Lower–Middle Jurassic Plover Formation and Upper Jurassic Vulcan Formation.

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 the specific study area of the Browse Basin, North West Shelf, Australia.

Provenance

Source

Australian Ocean Data Network, based on research published in Marine and Petroleum Geology, 2020.

Collection Method

Laboratory analysis of whole oil/condensate samples using GC × GC-TOFMS.

Time Range

Study published in 2020; sample collection timeframe is not specified.

Freshness

Last updated 2026-04-10 18:05:04.626433; freshness should be verified.

Geography

Browse Basin, North West Shelf, Australia, including specific fields like Cornea, Gwydion-1, Mimia-1, Concerto-1, Kronos-1, Dinichthys North-1, and Gorgonichthys-1.