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Aquifers productivity in the Pan-African context

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Abstract

In this study, 50 Vertical Electrical Soundings (VES) were carried out in the region, including 14 near existing boreholes for comparison. Aquifer parameters of hydraulic conductivity and transmissivity were obtained by analyzing pumping test data from existing boreholes. An empirical relationship between hydraulic conductivity (K) obtained from pumping test and both resistivity and thickness of the Pan-African aquifer has been established for these boreholes in order to calculate the geophysical hydraulic conductivity. The geoelectrical interpretation shows that almost all aquifers are made of the fractured portion of the granitic bedrock located at a depth ranging between 7 and 84 m. The hydraulic conductivity varies between 0.012 and 1.677 m/day, the resistivity between 3 and 825 Ωm, the thickness between 1 and 101 m, the transmissivity between 0.46 and 46.02 m2/day, the product K σ between 2.1 × 10 −4 and 4.2 × 10 −4.

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Acknowledgements

The first author would like to thank Dr Atangana Kouna Basile, Cameroonian Minister of Water Resources and Energy, for the permission to access to the archives and records of all his national and regional services.

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Authors and Affiliations

  1. Postgraduate School of Science, Technology and Geosciences, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon

    Aretouyap Zakari, Nouayou Robert & Njandjocknouck Philippe

  2. Applied Geophysics Division, Head Atomic Energy Commission, P.O. Box 6091, Damascus, Syria

    Asfahani Jamal

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  1. Aretouyap Zakari
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  2. Nouayou Robert
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  3. Njandjocknouck Philippe
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  4. Asfahani Jamal
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Correspondence to Aretouyap Zakari.

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Zakari, A., Robert, N., Philippe, N. et al. Aquifers productivity in the Pan-African context. J Earth Syst Sci 124, 527–539 (2015). https://doi.org/10.1007/s12040-015-0561-1

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  • DOI: https://doi.org/10.1007/s12040-015-0561-1

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