Jurassic-Cretaceous Sandstone Diagenesis and Porosity in the Eromanga Basin

Diagenetic overprints in quartzose and volcanolithic sandstones from the Eromanga Basin include physical compaction, clay infiltration, and cementation. The dataset, hosted by the Australian Ocean Data Network, details authigenic mineral sequences and quantifies porosity and permeability, with volcanolithic sandstones averaging 35% porosity and quartzose sandstones averaging 29% porosity. This analysis correlates porosity-permeability patterns with the depositional environments of the Cadna-owie, Wallumbilla, Hooray, and Mooga Formations.

Use Cases

• Predicting aquifer function based on described porosity and permeability measurements
• Modeling diagenetic sequences from the listed authigenic mineral timelines
• Correlating depositional environments with porosity-permeability distribution patterns mentioned in the description
• Analyzing the impact of early clay infiltration on preventing quartz cementation in quartzose sandstones

Strengths

• Provides specific porosity and permeability averages (35% and 125 md for volcanolithic, 29% and 676 md for quartzose)
• Describes detailed diagenetic sequences and authigenic minerals for two distinct petrofacies
• Correlates physical properties with depositional environments and lithofacies characteristics

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 PDF/HTML formats, which may require extraction for computational analysis

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains geological analysis and core measurements from the Eromanga Basin.

Time Range

Jurassic and Lower Cretaceous periods.

Freshness

Last updated 2026-05-04 23:50:14.467821; freshness should be verified

Geography

Eromanga Basin in New South Wales, Australia.