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Contribution de la gravimétrie à l'étude de la structure du bassin de Tadla (Maroc) : Implications hydrogéologiques |
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| Authors: | Abdessamad Najine Mohammed Jaffal Kamal El Khammari Tahar Aïfa Driss Khattach Mahjoub Himi Albert Casas Said Badrane Hicham Aqil |
| Institution: | 1. Faculté des sciences et techniques, BP 523, Béni-Mellal 23000, Maroc;2. Laboratoire de géoressources (LGR), département de géologie, faculté des sciences et techniques, Marrakech, Maroc;3. Laboratoire L3G, département de géologie, faculté des sciences, Oujda, Maroc;4. Géosciences-Rennes, CNRS–UMR 6118, université Rennes-1, bât. 15, campus de Beaulieu, CS 74205, 35042 Rennes cedex, France;5. Universidad de Barcelona, Departament de Geoquímica, Petrologia i Prospecció Geològica, Facultat de Geologia, c/ Martí i Franquès, s/n 08028 Barcelona, Espagne;6. Laboratoire de géophysique, CNRST, Rabat, Maroc |
| Abstract: | This study is based on the analysis and the interpretation of the gravity data of the Tadla basin. Its purpose is to increase the knowledge of this basin structure. A residual anomaly map was first calculated from the Bouguer anomaly data witch are strongly affected by a regional gradient. The computed map provides information on the ground density variation but it does not bring enough of new elements. Data filtering allows us to emphasize the structures affecting the basin. We chose the horizontal gradient coupled to the upward continuation techniques that permit to highlight news structures and to give information on their dip. The elaborated structural map of the study area constitutes a useful document for rationalizing the future groundwater exploration in the Tadla basin. To cite this article: A. Najine et al., C. R. Geoscience 338 (2006). |
| Keywords: | Bassin de Tadla Gravimétrie Gradient horizontal Prolongement vers le haut Hydrogéologie Tadla basin Gravity Horizontal gradient Upward continuation Hydrogeology |
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