Waxy Bitumen Stranding Geochemistry from Southern Australia, 96 Specimens

96 individual waxy bitumen specimens were collected from beaches in South Australia and western Victoria, primarily during 1991–1992 surveys. Geoscience Australia Data conducted elemental, isotopic, and biomarker analyses, assigning samples to at least five distinct oil families. The data was last updated on 2026-03-25.

Use Cases

• Classify stranded oil families based on elemental, isotopic, and biomarker differences described in the study.
• Model the oceanic transport of non-indigenous crude oils to southern Australia based on inferred Southeast Asian origins.
• Correlate biomarker assemblages (e.g., from Botryococcus sp.) with specific source facies like freshwater lacustrine or marine environments.
• Assess the contribution of natural seepage versus anthropogenic tanker cleaning to coastal pollution using geochemical signatures.

Strengths

• Analysis of 96 individual specimens provides a substantive sample size for geochemical comparison.
• Data distinguishes at least five oil families with inferred source facies ranging from lacustrine to marine.
• Specimens were collected from repeated surveys on six South Australian beaches, offering temporal and spatial context.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Data may reflect geographic and temporal bias inherent to the specific survey periods and locations.

Provenance

Source

Geoscience Australia Data

Collection Method

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

Time Range

Primary collection during 1991–1992 surveys.

Freshness

Last updated 2026-03-25 17:39:48.248083; freshness should be verified.

Geography

Beaches in South Australia and western Victoria, southern Australia.