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Geophysical Surveying Technique Toolkit

Geophysical Surveying Technique

The ERT surveying is a geophysical technique, useful for characterizing the sub-surface geological formations in terms of their electrical properties. Variations in electrical resistivity (or conductivity) typically correlate with variations in lithology, water saturation, fluid conductivity, salinity, porosity and permeability. This information can be used to map various subsurface characteristics including the presence of the possible fractured zones and groundwater.

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MSF., Doctors Without Borders, Zimbabwe, Water and Sanitation Toolkit