Groundwater Salinity Evolution Near Tresco Since Early Pleistocene

Core samples and groundwater from bores near Tresco, Victoria, reveal an aquifer's chemical history shifted from fresh to saline by pulses of concentrated NaCl water between 400,000 and 18,000 years B.P. The data includes analyses for palynology and chemistry, challenging marine explanations for salinity patterns. This work was contributed by the Australian Ocean Data Network.

Use Cases

• Analyze palynology data to reconstruct past vegetation and climate conditions in the Murray Basin.
• Model groundwater chemical evolution using chemistry data from core samples to trace salinity sources.
• Correlate the timing of NaCl water pulses (400,000 to 18,000 years B.P.) with regional paleo-hydrological events.
• Investigate the role of brine pools below salt playa lakes as a salinity source using geospatial bore data.

Strengths

• Data includes multi-proxy analysis combining palynology and chemistry.
• Temporal coverage spans from the early Pleistocene to 18,000 years B.P., offering long-term perspective.

Limitations

• Sample size and specific row/column counts are unknown.
• Data formats are PDF and HTML, which are not machine-readable without extraction.
• Geographic coverage is limited to a specific area near Tresco, northwest Victoria.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Early Pleistocene to 18,000 years B.P.

Freshness

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Geography

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