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Vertical Electrical Soundings for Subsurface Layers and Groundwater Investigations in the Mayo Kani Area in Cameroon

Journal: International Journal of Science and Research (IJSR) (Vol.4, No. 2)

Publication Date:

Authors : ; ; ; ;

Page : 396-401

Keywords : Vertical Electrical Sounding; Schlumberger array; subsurface layers; Resistivity; Ground water investigation;

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This paper presents an investigation of sub-surface layered and ground water characteristics using Vertical Electrical Sounding (VES). The study was conducted in the Mayo Kani area in Cameroon. One hundred VES were carried out using the Schlumberger array in order to determine the nature, characteristics and spatial extend of the components of subsurface layers. The data were analyzed by the software IP2WIN while the isoapparent resistivity maps were plot by the help of the software SURFER. The results gave H, K, A, HK, HA, QH, KH, HKH, HAA, and HKHK types associated to three, four, five and six layers. The geological sequence beneath the study area is composed of topsoil (clayey sandy, sandy-lateritic, gravel, and dry alluvium), weathered layer, unsaturated layer, saturated formation and bedrock. Aquifer is located either in the alterations, sand, or fractured rocks. The resistivity value for the topsoil layer varies from 4.32. m to 9756. m with thickness ranging from 0.5 to 13.1 m, while the fresh basement (bedrock) has resistivity values ranging from 1058. m to 46961. m with infinite depth. However, the depth from the earths surface to the bedrock surface varies between 9 to 80 m.

Last modified: 2021-06-30 21:22:46