Stable carbon and hydrogen isotopic compositions of Paleozoic marine crude oils from the C

17 Paleozoic marine crude oil samples from the Canning Basin, Western Australia, analyzed for stable carbon and hydrogen isotopic compositions. The dataset, from Geoscience Australia, includes bulk, saturated, and aromatic hydrocarbon fractions, with comparisons to other Australian and global marine oils. The isotopic data is used to characterize oil families and petroleum systems, with a last update recorded on 2026-04-30.

Use Cases

• Characterizing oil families and petroleum systems based on bulk stable carbon isotopic composition trends.
• Investigating source rock facies variations and thermal maturation levels using carbon and hydrogen isotopic profiles of individual n-alkanes.
• Correlating oils across different basins and geological periods by comparing isotopic signatures, such as Ordovician-sourced oils with Early Triassic-sourced oils.

Strengths

• Includes isotopic data for 17 distinct Paleozoic marine crude oil samples.
• Provides measurements for multiple hydrocarbon fractions: bulk, saturated, and aromatic.
• Contains specific isotopic values, such as a Cambrian oil-stain with a 13Csat value of -32.0‰ and mean values for Late Devonian (-29.2‰) and Mississippian (-28‰) oils.

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 data_gov_au, focusing on Western Australian basins.

Provenance

Source

Geoscience Australia Data

Collection Method

Laboratory analysis of crude oil samples for stable carbon and hydrogen isotopic compositions.

Time Range

Paleozoic era (specifically Cambrian, Ordovician, Devonian, Mississippian periods)

Freshness

Last updated 2026-04-30 15:18:27.945433; freshness should be verified.

Geography

Canning Basin, Western Australia; with comparisons to the Arafura, Bonaparte, and Perth Basins.