Jurassic-Cretaceous Sandstone Diagenesis and Porosity in the Eromanga Basin

A geological study of the Jurassic and Lower Cretaceous sandstones in the Eromanga Basin, New South Wales. The dataset, provided by the Australian Ocean Data Network, describes diagenetic processes and quantifies porosity and permeability for quartzose and volcanolithic petrofacies. It was last updated on 2026-06-05.

Use Cases

• Modeling aquifer properties based on described porosity and permeability values for quartzose and volcanolithic sandstones.
• Classifying sandstone petrofacies based on described mineralogical and depositional environment characteristics.
• Analyzing diagenetic sequences and their impact on reservoir quality using the described temporal order of authigenic minerals.
• Correlating porosity-permeability distribution patterns with the described depositional environments and lithofacies.

Strengths

• Includes specific quantitative measurements, such as mean core porosity of 29% and permeability of 676 md for quartzose sandstones.
• Provides detailed mineralogical sequences for two distinct petrofacies, describing authigenic minerals in temporal order.
• Links geological properties (porosity, diagenesis) to a functional outcome (excellent aquifer function) based on described early diagenetic overprints.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific basin study area.

Provenance

Source

Australian Ocean Data Network

Time Range

Jurassic and Lower Cretaceous periods

Freshness

Last updated 2026-06-05 06:58:45.108056; freshness should be verified.

Geography

Eromanga Basin, New South Wales, Australia