Late Devonian Photic Zone Euxinia Geochemistry in the Canning Basin

Geochemical evidence from the Givetian–Frasnian stages indicates photic zone euxinia persisted on both the Lennard Shelf and Barbwire Terrace margins of the Fitzroy Trough. This research dataset, published in Marine and Petroleum Geology in 2018, analyzes biomarker assemblages like hopanes, steranes, and carotenoids to correlate oils with potential source rocks. It provides insights into the conditions for organic-rich shale deposition and petroleum generation in a confined Late Devonian basin.

Use Cases

• Correlate extracted oils from fields like Blina-1 with rock extracts using specific biomarker abundances of hopanes and steranes.
• Assess the persistence of photic zone euxinia by analyzing geochemical evidence from different basin margins (Lennard Shelf vs. Barbwire Terrace).
• Model nutrient supply and primary production drivers for episodic vs. persistent euxinia based on shale records and algal activity indicators.
• Evaluate source rock potential in the Gogo Formation by comparing its molecular composition with produced oils from Lennard Shelf fields.

Strengths

• Data is peer-reviewed and published in a 2018 journal article (Marine and Petroleum Geology, Volume 93).
• Analysis covers two distinct geographical margins within the Canning Basin: Lennard Shelf and Barbwire Terrace.
• Research establishes specific biomarker-based correlations between oils and rock extracts.

Limitations

• The specific number of data rows, columns, and sample size is not provided.
• Geographic scope is limited to the Canning Basin in Western Australia.
• Data format is listed as HTML, suggesting the primary data may be embedded within the publication text rather than a standalone structured table.

Provenance

Source

Australian Ocean Data Network (AODN) via data.gov.au.

Collection Method

Geochemical analysis of rock extracts and oils, including biomarker (hopane, sterane, carotenoid) assessment.

Time Range

Givetian to Frasnian stages of the Middle–Late Devonian period.

Freshness

null

Geography

Canning Basin, Western Australia, specifically the Fitzroy Trough, Lennard Shelf, and Barbwire Terrace.