Electric Resistivity Surveys Foundation Mapping

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  Electrical resistivity tomography (ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub-surface structures from electrical resistivity measurements made at the surface. Where high conductivity soils, like clay or salinity are present and GPR penetration is limited, then ERT is the solution 

 Vertical slice with clear findings at position 7 – 15 m and 0.8 – 4.5 m depth presence of archaeological object made of solid material, probably stone, is confirmed