Hydrogeochemistry of Groundwater in the Upper Hunter River Valley, New South Wales

Groundwater chemistry data from the upper Hunter River valley in New South Wales, Australia, describing processes like silicate dissolution and ion exchange. The dataset, sourced from the Australian Ocean Data Network, was last updated on 2026-06-27. It focuses on regional recharge zones within Triassic, Carboniferous, and Permian rock formations.

Use Cases

• Modeling groundwater solute transport based on described ion concentrations (Ca2+, SiO2, HCO3-, Cl-, Na+, SO4^2-, Mg2+).
• Analyzing mineral precipitation/dissolution reactions based on disequilibrium indices for calcite, dolomite, and dawsonite.
• Studying the influence of geological formations (e.g., Wittingham Coal Measures, Greta Coal Measures) on groundwater salinity.
• Investigating the hydrochemical legacy of past marine immersion in Permian rocks based on the description of connate marine salts.

Strengths

• Detailed geochemical description covering multiple rock formations and aquifers.
• Specific mention of ion concentration distributions (e.g., Ca2+, SiO2, HCO3- approach log-normal).
• Processes like silicate dissolution, ion exchange, and sulphide oxidation are explicitly detailed.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in HTML and PDF formats, which may require extraction for analysis.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Freshness

Last updated 2026-06-27 19:31:33.486631; freshness should be verified.

Geography

Upper Hunter River valley, New South Wales, Australia.