The hydrogeochemistry of groundwater in fractured bedrock aquifers beneath dryland salinit

Fresh to brackish groundwaters ranging from 250 to 2250 mg/L occur in fractured bedrock aquifers beneath dryland salinity sites in the Southern Tablelands of New South Wales. The dataset, provided by the Australian Ocean Data Network, describes the chemical composition of these waters, which originate from recent meteoric sources and are shaped by water-rock interaction, ion exchange, and microbial processes. The data was last updated on 2026-06-04.

Use Cases

• Modeling groundwater flow paths based on hydrochemical facies mentioned in the description
• Assessing the impact of water-rock interaction on groundwater salinity in fractured bedrock
• Studying ion-exchange processes in clay-filled fractures on groundwater chemistry
• Investigating the role of microbial activity in creating low redox potentials in groundwater

Strengths

• Specific salinity range provided (250 to 2250 mg/L)
• Clear description of three distinct geological catchments (Dicks Creek, Williams Creek, Spring Creek)
• Identifies three key chemical processes shaping water composition

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 data_gov_au

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains field measurements and laboratory analysis of groundwater samples.

Freshness

Last updated 2026-06-04 06:57:03.840015

Geography

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