Geochemical Analysis of 96 Waxy Bitumen Strandings on Southern Australian Beaches

96 individual specimens of waxy bitumen were collected from beaches in South Australia and western Victoria and analyzed geochemically. The study, published via the Australian Ocean Data Network, identifies at least five distinct oil families with inferred origins in Southeast Asian sedimentary basins. The data was last updated on 2026-06-04.

Use Cases

• Classifying stranded petroleum into distinct oil families based on elemental, isotopic, and biomarker differences described in the study.
• Modeling the oceanic transport and influx of non-indigenous crude oils to Australian waters based on the inferred Southeast Asian origins.
• Correlating biomarker assemblages (e.g., from Botryococcus sp., dipterocarps, dinosterane) to specific source facies like lacustrine, deltaic, or marine environments.
• Assessing the potential contribution of natural seepage versus anthropogenic sources like tanker cleaning operations to coastal pollution.

Strengths

• Analysis of 96 individual specimens provides a substantial sample for statistical geochemical comparison.
• Data distinguishes at least five oil families with detailed inferred source facies (e.g., deep freshwater lacustrine, euxinic marine).
• Study focuses on the most common variety, waxy bitumen, which accounted for 90% of strandings on six repeatedly surveyed beaches in 1991–1992.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analytical methods.
• Data may reflect geographic and temporal bias inherent to the specific survey beaches and collection period.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Specimens collected during surveys including 1991–1992.

Freshness

Last updated 2026-06-04 07:06:32.851689; freshness should be verified

Geography

Beaches in South Australia and western Victoria, southern Australia.