Groundwater Chemistry in the Upper Hunter River Valley, New South Wales

Hydrogeochemical data for groundwater in the upper Hunter River valley of New South Wales. The dataset describes the chemistry influenced by silicate and carbonate reactions, ion exchange, and oxidation processes within Triassic, Carboniferous, and Permian rock formations. It was published via the Australian Ocean Data Network and last updated on 2026-04-10.

Use Cases

• Modeling silicate and carbonate dissolution/precipitation reactions based on mineral disequilibrium indices mentioned in the description
• Analyzing groundwater salinity sources based on the described legacy of connate marine salts in Permian rocks
• Classifying groundwater types based on the described log-normal distributions of Ca2+, SiO2, and HCO3 ions
• Investigating the influence of coal oxidation on water chemistry in the Wollombi and Wittingham Coal Measures as described

Strengths

• Description provides detailed geological context for the hydrochemical processes across multiple rock formations
• Last update timestamp is precisely recorded as 2026-04-10 18:58:09.388111

Limitations

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

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Likely contains measurements and analyses from field studies, as inferred from the detailed geochemical description.

Time Range

The description references both a 'palaeohydrochemical regime' and 'contemporary' processes, suggesting a mix of historical and modern data, but specific temporal coverage is not stated.

Freshness

Last updated 2026-04-10 18:58:09.388111; freshness should be verified

Geography

Upper Hunter River valley, New South Wales, Australia, with specific mention of the Central Lowlands, southern/western/northern recharge zones, and the Hunter River floodplain.