Figure 2

Electrical conductivity maps, at different depths, derived from electro-magnetic data inversion. Conductivity values are shown for the 5038 measurement points without interpolation (water channels and deep ponds could not be investigated). The 4 panels show the following layers: i) surface 0.0 m, ii) 0.36 m depth, iii) 0.60 m depth and iv) 1.0 m depth. Coordinates are expressed as meter in UTM zone 33T. A-E represent the locations of the boreholes. The maps are obtained from inverted field data using Surfer v.10.3.705 by Golden Software Inc.