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Les sondages électromagnétiques temporels comme outil de reconnaissance du gisement phosphaté de Sidi Chennane (Maroc) : apport à la résolution d'un problème d'exploitation |
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| Authors: | Azzouz Kchikach Pierre Andrieux Mohammed Jaffal Mostafa Amrhar Mohammed Mchichi Baadi Boya Mbarek Amaghzaz Thierry Veyrieras Khadija Iqizou |
| Institution: | 1. Faculté des sciences et techniques, BP 549, Marrakech, Maroc;2. Laboratoire de géophysique appliquée, université Pierre-et-Marie-Curie (Paris-6), 4, place Jussieu, 75252 Paris cedex 05, France;3. Faculté des sciences Semlalia, BP 2390, Marrakech, Maroc;4. Groupe office chérifien des phosphates, Casablanca et Khouribga, Maroc |
| Abstract: | Exploitation of the phosphatic layers in Sidi Chennane deposit (Morocco) collides frequently with problems bound to the existence, in the phosphatic series, of sterile bodies qualified as derangements. Our study shows that these bodies, masked by the Quaternary cover can be mapped using the Time-Domain ElectroMagnetic Soundings method (TDEM). It is based on the acquisition and the interpretation of a series of tests carried out above a visible derangement in an old trench of exploitation and on 2500 TDEM soundings carried out in a virgin area of the deposit. The article concerns to the analysis of the results and of the proceeding for a possible large geophysics survey. To cite this article: A. Kchikach et al., C. R. Geoscience 338 (2006). |
| Keywords: | Maroc Sidi Chennane Série phosphatée Sondages électromagnétiques temporels Cartographie Morocco Sidi Chennane Phosphatic series Time-Domain ElectroMagnetic soundings Cartography |
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