Geochemical Analysis of Waxy Bitumen Strandings on Southern Australian Beaches

Southern Australian beaches have recorded bitumen strandings since European settlement. This dataset contains geochemical analysis results for 96 individual waxy bitumen specimens collected from survey sites in South Australia and western Victoria between 1991 and 1992. The data, sourced from the Australian Ocean Data Network, identifies at least five distinct oil families with inferred origins in Southeast Asia.

Use Cases

• Classify stranded petroleum into distinct geochemical families based on elemental, isotopic, and biomarker differences described in the study.
• Model the transport pathways of non-indigenous crude oils to Australian beaches using data on inferred source facies and the Leeuwin Current.
• Investigate the potential contribution of natural seepage versus anthropogenic tanker cleaning operations to coastal pollution, as discussed in the description.

Strengths

• Analysis is based on 96 individual bitumen specimens, providing a substantive sample size.
• Data distinguishes at least five oil families with specific inferred source environments (e.g., freshwater lacustrine, euxinic marine).
• Study focuses on the most common variety, waxy bitumen, which accounted for 90% of strandings on six repeatedly surveyed beaches.

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 and temporal bias inherent to the specific survey period (1991-1992) and locations.

Provenance

Source

Australian Ocean Data Network

Collection Method

Geochemical analysis (elemental, isotopic, biomarker) of physically collected specimens.

Time Range

Specimens collected during 1991-1992 surveys.

Freshness

Last updated 2026-06-16 17:41:45.153755; freshness should be verified.

Geography

Beaches in South Australia and western Victoria, southern Australia.