Author(s)

Simon Pierre Djroh^1*, Kouamelan Serge Kouamelan¹, Yacouba Ouattara¹, Serge Pacome Dégine Gnoleba²

¹Applied Geophysics Research Team Laboratory, Mineral and Energy Resources (LGRME), Faculty of Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire.
²Ministry of Mines and Geology, Yamoussoukro, Côte d’Ivoire.

This study proposes an alternative approach to the investigation of high flow hydrogeological fractures within the basement in the Dabakala region of north-central Côte d’Ivoire. The used approach consists of exploring the subsurface by measuring electrical resistivity contrasts along the main shear direction within crystallophyllian rocks. Electrical resistivity profiling and vertical electrical sounding techniques, coupled with boreholes monitoring, have identified fractured aquifers whose best flow rates are around 96 and 116 m³/h. These aquifers mostly hosted in granodiorite have an average strength of 10 meters and are located at depth of around 100 meters. They are associated with open fractures created by tangential shear stresses that have affected the Dabakala volcano-sedimentary trench formations. The search for fractured aquifers along the main shear direction offers great perspective for obtaining high flow rates.

Shear, Fractured Aquifer, High Flow Rate, Côte d’Ivoire

Djroh, S. , Kouamelan, K. , Ouattara, Y. and Gnoleba, S. (2022) Electrical Resistivity Contrasts and High Flow Rates Discontinuous Aquifers Identification in a Sheared Crystallophyllian Basement Zone at Boniérédougou (North-Central Côte d’Ivoire). Journal of Geoscience and Environment Protection, 10, 35-49. doi: 10.4236/gep.2022.1011003.