Groundwater Salinity Origins in the Murray Basin, Northwest Victoria

Core samples and groundwater from bores at Tresco in northern Victoria have been analyzed for palynology and chemistry. The data originates from Geoscience Australia and was last updated on 2026-04-30. It describes the chemical evolution of an aquifer from fresh water to saline due to brine pulses between 400,000 and 18,000 years B.P.

Use Cases

• Modeling groundwater chemical evolution based on described salinity pulses and aquifer conditions.
• Analyzing paleoenvironmental changes based on palynology and geochemistry data from core samples.
• Investigating the source of salinity in aquifers based on the described mechanism of brine pool invasion.

Strengths

• Data includes analysis of both palynology and chemistry, providing multi-faceted evidence.
• The description provides a specific temporal model for salinity invasion (400,000 to 18,000 years B.P.).
• The geographic focus is clearly defined as the Tresco area in the Murray Basin, northwest Victoria.

Limitations

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

Provenance

Source

Geoscience Australia Data

Collection Method

Analysis of core samples and groundwater from bores for palynology and chemistry.

Time Range

Covers geological history, specifically the early Pleistocene and the period between 400,000 and 18,000 years B.P.

Freshness

Last updated 2026-04-30 12:45:19.155566; freshness should be verified.

Geography

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