Electro-resistance study of the subsoil structure: Electrical tomography, vertical electrical soundings, electromagnetic profiles, magnetotelluric prospecting (from 1 m to 100 km deep: applications in geological engineering, hydrogeology and geological risks).

Gravimetric prospecting: Surface studies for location of holes for geological engineering, intermediate studies for thickness of fills and sedimentary basins for hydrogeology and mining, and of the crust for geological risks.

Magnetic prospecting: Location of metal deposits and crust structure.

Interpretation of seismic data: Surface records of Topas, conventional and deep seismic reflection.