We use electrical resistivity methods for imaging underground structures.
The technique allows to identify contrasts of resistivity and/or anomalies from electrical current injection from the surface.
Some applications of electrical resistivity and related techniques (induced polarization and spontaneous potentials) are : 

- Detection of alien materials : concrete blocks, iron reinforcements (geotechnical applications, foundations, etc…) ;
- Detection of groundwater and its depth, position of saline intrusions in coastal environment (hydrogeology, ressource management…) ;
- Detection of underground contaminations from leackages of hydrocarbons, fertilizers, dump materials, etc…;
- Detection of cavities in karstical limestone environment ;
- Detection of metal deposits among alteration profils, detection of dykes (mining) ;
- Detection of imminent land slope by water accumulation between bed rock and sediments,…