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Geoelectrical Tomography Investigating andModeling of Fractures Network around Bittit Spring (Middle Atlas,Morocco)

Abstract : Direct current Resistivity (DCR) method was carried out to characterize the hydrogeological connection between the Tabular Middle Atlas (TMA) and the Sa¨ıs Basin. The TMA is one of the most important aquifers in northern Morocco that supplies the deep aquifer of the Sa¨ıs Basin. Electrical resistivity tomography (ERT) survey was focused on the Bittit area that is one of the most important outlet discharges, and it is representative of the relations between the TMA and the Sa¨ıs Basin. The high resolution capabilities of the electrical tomography were used to define the geological draining features in the framework of water paths from the TMA to the karstic springs. The synthetic data were calculated for the similar model expected in field data inversion and inversion result of these synthetic data used as a guide for the interpretation of the inverse data resistivity sections. Joint interpretation of geophysical, geological, structural, and synthetic simulation data allowed identifying a conductive horizontal shallow layer overlying two subvertical families of fractures of NE-SW and NW-SE directions. This result leads to propose hydrological behaviour of water from the Tabular Middle Atlas and the Sa¨ıs Basin at the Bittit Spring, which takes into account for both horizontal flows through stratification joints or karst and through subvertical fractures.
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https://hal-insu.archives-ouvertes.fr/insu-00668297
Contributor : Isabelle Dubigeon <>
Submitted on : Thursday, February 9, 2012 - 3:20:22 PM
Last modification on : Wednesday, October 14, 2020 - 3:46:56 AM
Long-term archiving on: : Thursday, November 22, 2012 - 11:50:43 AM

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K. Qarqori, M. Rouai, Frédérique Moreau, Ginette Saracco, Olivier Dauteuil, et al.. Geoelectrical Tomography Investigating andModeling of Fractures Network around Bittit Spring (Middle Atlas,Morocco). International Journal of Geophysics, Hindawi Publishing Corporation, 2012, ID 489634, 13 p. ⟨10.1155/2012/489634⟩. ⟨insu-00668297⟩

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