Application of the Electromagnetic VLF Method for the Detection of Fracture Areas in Cause of El Hajeb (Morocco)

Hmad Bouikbane, Mustapha Boualoul, Ahmed Benamara

Abstract: The renowned Causse d'El Hajeb study area is located in northern Morocco, it is bounded to the north by the Saiss basin, to the south by means of the pleated atlas, to the west by the Causse of Agouray and the East by the Bsabis's Causse. The results obtained from these profiles have revealed at the anomalies corresponding to faults and / or fractures, which serve the flow of groundwater at the Causse to the plain of Saiss, using the electromagnetic VLF Low Frequency). This study consisted of four (04) profiles in the N-S directions for the VLF1 profil and E-O for the VLF 2, VLF 3 and VLF4 profiles, with a length distance of 300 to 470m with 10m steps.

Keywords: Middle Atlas Causse, faults, underground waters, VLF electromagnetic