Figure 6

The methodology to acquire the apparent resistivity data (solid circles) are depicted for the WSP (A), the MC (B) and the WSG (C) arrays. The distribution of the flat-base electrodes (solid circles) conforming a square geometry is depicted. The AB are the current electrodes and MN are the potential electrodes. Arrows indicate the direction of the data acquisition process and the big solid circle indicates the resistivity value obtained with the electrode array ABMN displayed in the diagrams.