Late Devonian Photic Zone Euxinia Geochemical Data from the Canning Basin

Geochemical data from the Canning Basin in Western Australia provides insights into photic zone euxinia during the Givetian–Frasnian stages of the Late Devonian period. The dataset, published by researchers including Gemma Spaak et al. in 2018, examines biomarker assemblages such as hopane, sterane, and carotenoid abundances from rock extracts and oils. It links episodic and persistent euxinia events to algal activity, nutrient supply, and restricted marine settings on the Lennard Shelf and Barbwire Terrace.

Use Cases

• Correlating oil samples from Lennard Shelf fields (e.g., Blina-1) with rock extracts from the Gogo Formation using hopane, sterane, and carotenoid abundances.
• Analyzing the persistence of photic zone euxinia on the Barbwire Terrace by examining biomarker evidence for bacterial predominance in a restricted marine setting.
• Investigating episodic pulses of euxinia on the Lennard Shelf by linking geochemical signals to periods of high algal activity and nutrient supply.
• Assessing the genetic affinity of the Mirbelia-1 oil to Givetian–Frasnian rock extracts from the Barbwire Terrace to identify local source rocks.

Strengths

• Data is peer-reviewed and published in Marine and Petroleum Geology (Volume 93, 2018).
• Analysis covers two distinct geographic margins within the Canning Basin: the Lennard Shelf and Barbwire Terrace.
• Research establishes correlations between specific oil fields and geological formations based on multiple biomarker classes.

Limitations

• The exact number of data rows, columns, and sample size is unknown.
• Data is specific to the Late Devonian period and the Canning Basin, limiting broader geographic or temporal applications.
• Source data format and accessibility details (e.g., raw measurements) are not provided in the description.

Provenance

Source

Australian Ocean Data Network, from research published in Marine and Petroleum Geology.

Collection Method

Geochemical analysis of rock extracts and oil samples for biomarker assemblages.

Time Range

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

Freshness

null

Geography

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