Geochemical Analysis of Four Australian Petroleum Systems from Ordovician to Cretaceous

A study compares the geochemical characteristics of four Australian petroleum systems ranging from the Ordovician to Early Cretaceous. The research, sourced from the Australian Ocean Data Network, analyzes source rocks deposited in marine environments with varying contributions of terrestrial organic matter. The dataset was last updated on 2026-06-23.

Use Cases

• Modeling petroleum source rock composition based on terrestrial versus marine organic matter contributions described in the study.
• Analyzing biomarker distributions for hydrocarbon maturity assessment based on the mention of hopane, sterane, and semi-volatile aromatics.
• Correlating geochemical signals with depositional environments like photic zone euxinia (PZE) as discussed for the Upper Devonian source rocks.
• Investigating the preservation and detection of terrestrial organic carbon signatures in generated hydrocarbon accumulations, a key challenge noted in the description.

Strengths

• Focuses on four distinct Australian petroleum systems, providing a comparative analysis.
• Discusses specific molecular compounds and biomarkers like hopanes, steranes, perylene, and methyltrimethyltridecylchromans.
• Examines source rocks from a wide geological time range, from the Ordovician to the Early Cretaceous.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Likely contains geochemical analyses and petrological studies of rock samples.

Time Range

Covers geological periods from Ordovician to Early Cretaceous.

Freshness

Last updated 2026-06-23 02:12:36.681829; freshness should be verified

Geography

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