Hydrogeochemistry Analysis of Upper Hunter River Valley Groundwater

Groundwater chemistry data from the upper Hunter River Valley in New South Wales, Australia, analyzes mineral dissolution and precipitation processes. The dataset, published by the Australian Ocean Data Network, examines aquifers within Triassic, Carboniferous, and Permian rock formations. It was last updated in April 2026.

Use Cases

• Model silicate and carbonate dissolution/precipitation reactions using disequilibrium indices for calcite, dolomite, and dawsonite.
• Analyze oxidation processes in coal-bearing aquifers using data from the Wollombi and Wittingham Coal Measures.
• Investigate sources of saline groundwater by examining concentrations of Cl-, Na+, SO4-, and Mg2+ ions in Permian rocks.
• Study ion exchange and molecular diffusion processes using Ca2+, SiO2, and HCO3- ion concentration distributions.
• Map regional groundwater flow and quality by correlating chemistry data with confined and unconfined aquifers like the Greta Coal Measures and Hunter River floodplain sands.

Strengths

• Analysis covers multiple distinct geological formations and aquifer types, including Triassic, Carboniferous, and Permian rocks.
• Provides specific disequilibrium indices for key carbonate and sulphate minerals to assess modern precipitation/dissolution.

Limitations

• Specific row counts, sample sizes, and measurement dates for the groundwater samples are not provided.
• Data is presented in report formats (HTML, PDF), limiting direct machine-readability and structured analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

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Time Range

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Freshness

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Geography

Upper Hunter River Valley, New South Wales, Australia