The hydrogeochemistry of groundwater in fractured bedrock aquifers beneath dryland salinit

Groundwater samples from fractured bedrock aquifers beneath dryland salinity occurrences in the Yass region of New South Wales. The data, provided by Geoscience Australia, likely contains measurements of major cations and anions, with salinity ranging from fresh to brackish (250 to 2250 mg/L). The chemical composition is described as resulting from water-rock interaction, ion exchange, and microbial processes.

Use Cases

• Modeling groundwater salinity evolution based on described water-rock interaction processes.
• Analyzing hydrochemical facies based on the described major cation and anion composition.
• Studying the impact of bedrock geology (slates, shales, sandstones, dacite) on groundwater chemistry.
• Investigating redox conditions and microbial activity in groundwater based on the described low redox potentials.

Strengths

• Specific salinity range provided (250 to 2250 mg/L).
• Detailed geological context for three named catchments (Dicks Creek, Williams Creek, Spring Creek).
• Clear description of three key geochemical processes governing water composition.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last update is listed as 2026-05-14.

Provenance

Source

Geoscience Australia Data

Collection Method

Likely field sampling and laboratory analysis of groundwater.

Freshness

Last updated 2026-05-14 03:59:01.899097

Geography

Yass region, Southern Tablelands of New South Wales, Australia, specifically Dicks Creek, Williams Creek, and Spring Creek catchments.