Groundwater Salinity Origins Near Tresco, Northwest Victoria

Core samples and groundwater from bores at Tresco in northern Victoria have been analysed for palynology and chemistry. The dataset, sourced from the Australian Ocean Data Network, describes the chemical evolution of an aquifer from fresh water to saline invasion between 400,000 and 18,000 years B.P. A marine explanation for the observed salinity patterns is reported as not possible.

Use Cases

• Modeling historical groundwater chemistry evolution based on described chemical changes from fresh to reducing, acidic, and saline.
• Analyzing the impact of surface brine pools on aquifer salinity based on the described invasion mechanism.
• Investigating paleo-environmental conditions in the Murray Basin based on palynology and geochemical data mentioned in the description.
• Testing hypotheses for non-marine salinity sources in groundwater systems as described in the dataset.

Strengths

• Provides a specific temporal range for a key geological event: saline invasion occurred between 400,000 and —18,000 years B.P.
• Focuses on a defined geographical area: the southern margin of the Murray Basin near Tresco, northwest Victoria.
• Includes multiple analytical methods as mentioned: palynology and chemistry.

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 PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of core samples and groundwater from bores.

Time Range

Early Pleistocene to 18,000 years B.P.

Freshness

Last updated 2026-04-28 15:06:51.465618; freshness should be verified.

Geography

Tresco, northwest Victoria, in the southern margin of the Murray Basin, Australia.