Assessment of the Geoelectrical Anomalies of the Disturbances of Phosphate Series Using the Triangular Prism Surface Area Method (Sidi Chennane -Morocco)

Summary Morocco owns more than three-quarters of all phosphate-rock reserves in the world (50 000 billion metric tons). These appreciable reserves of phosphate known since 1908 were deposited in several basins, from northeast to southwest of Morocco and has been exploited since the 1920s by l’Office Chérifien des Phosphates (OCP) ( Northolt et al., 1989 ). In this study we focus on Sidi Chennane area that it is one of the most important phosphate deposits and considered to be of world-class significance. Although the phosphate series of this deposit is present at a grade sufficient, it is frequently affected by many sterile bodies called disturbances or derangements ( Kchikach et al., 2002 ).