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

Seventeen Paleozoic marine crude oils from the Canning Basin, Western Australia, are analyzed for stable carbon and hydrogen isotopic compositions of bulk, saturated, and aromatic hydrocarbons. The data, from Geoscience Australia, reveals a systematic enrichment in 13C from the Early to Late Paleozoic, with Cambrian oil stains showing the most depleted values. This isotopic data is used to refine the characterization of oil families and petroleum systems in the region.

Use Cases

• Correlating oil families based on bulk stable carbon isotopic composition trends described in the study.
• Assessing source rock facies variations and thermal maturity levels using carbon and hydrogen isotopic profiles of individual n-alkanes.
• Comparing isotopic signatures of Paleozoic marine oils across different Australian basins, such as the Canning, Bonaparte, Arafura, and Perth Basins.
• Refining petroleum system models for the Canning Basin by integrating biomarker analyses with isotopic data.

Strengths

• Focuses on 17 specific Paleozoic marine crude oil samples from the Canning Basin.
• Includes isotopic data for bulk, saturated, and aromatic hydrocarbon fractions, as well as individual C7+ n-alkanes.
• Provides comparative analysis with other Australian and global marine oils and source rocks.

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 its focus on west 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 2026-04-20 03:36:02.949346; freshness should be verified.

Geography

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