Vertical electrical sounding (VES)

The method of vertical electrical sounding provides detailed information on the vertical succession of different conducting zones and their individual thickness and true resistivity. The measurements are made with a four-electrode array, consisting of two current and two potential electrodes  (Schlumberger array). To reach  investigation depth down to 100m, it is nessessary to spread out the current electrodes at minimum up to 600m (AB-distance).