Geochemical Analysis of Australian Petroleum Systems from Ordovician to Cretaceous

Australian petroleum systems from the Ordovician to Early Cretaceous are analyzed for terrestrial geochemical signals. The study compares four systems with source rocks deposited in marine environments containing varying terrestrial organic matter contributions. The data is provided as a PDF document from the Australian Ocean Data Network, last updated in 2026.

Use Cases

• Classifying source rock composition based on terrestrial versus marine organic matter contributions described in the study.
• Modeling past atmospheric CO2 levels based on the fate of terrestrial organic carbon within the earth system.
• Predicting hydrocarbon generation potential (gas vs. oil) based on the geochemical characteristics of source rocks.

Strengths

• Analysis spans a significant geological time range, from the Ordovician to the Early Cretaceous.
• Compares four distinct Australian petroleum systems, providing a comparative framework.
• Discusses specific molecular compounds (e.g., perylene, methyltrimethyltridecylchromans) and petrological evidence for terrestrial inputs.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is presented in a PDF format, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains results from a comparative geochemical study of rock samples.

Time Range

Covers geological periods from Ordovician to Early Cretaceous.

Freshness

Last updated 2026-06-27 19:04:09.394653; freshness should be verified.

Geography

Focuses on Australian basins, including the Canning Basin (Western Australia) and the North West Shelf.