Paleo-channel delineation using High Resolution Resistivity


plume mapping - Line 1
Objective:

To identify and differentiate between predominantly sandy areas and clay-rich soils at a maximum depth of 50 feet. The survey aimed to cost effectively locate a suitable recharge site for the Central Avra Valley Recovery and Recharge Project.

Logistics:

Pole-Pole electrode array. Flat topography therefore no topographic correction was needed.
      - Data acquisition time: three days
      - Lineal coverage: 2000 feet
      - Data reduction & plotting: one day

Results:

This survey showed excellent discrimination between clay-rich and sandy soil horizons. Two paleo-channels were identified by the survey wich helped to identify suitable and problematic recharge sites

Other
Applications:

Buried solid waste detection, plume mapping, clay horizon identification, leak detection and alluvial characterization.


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