Hydrogeophysical assessment of some parts of Anambra basin, Nigeria

  • Authors

    • Augustine Chinwuko Nnamdi Azikwe University, Awka
    • Emmanuel Anakwuba Nnamdi Azikwe University, Awka
    • Nkechi Nwokeabia Nnamdi Azikwe University, Awka
    • Clement Onyekwelu SunLink Petroleum Limited Lagos, Nigeria
    2014-06-10
    https://doi.org/10.14419/ijag.v2i2.2304

  • Abstract

    An electrical resistivity investigation has been carried out in thirteen communities within the Anambra Basin in order to determine the depth to the water table and groundwater flow in the area. Vertical electrical sounding (VES) curves were obtained across the area using the Schlumberger configuration. Both manual and computer interpretations of the resistivity data show basically three to five geo-electric units within the study area. The lowermost layer with the resistivity range of 144 - 1500 Ohm-m and depth of 14.9 – 166.41 m represents the aquifer. The water table map indicates multi flow direction and correlates favourably with the topography of the area. It was observed that the hydraulic conductivity obtained ranges from 6.67 x 10-4 to 6.944 x 10-3 m/day while the transmissivity ranges from 0.048 to 0.590 m2/day within the study area.

    Keywords: Groundwater, Resistivity Survey, Aquifer, Exploration, Schlumberger, Sounding.

  • References

    1. Aboh, H. O. and Osazuwa, I. B. 2000. Lithological deductions from Regional Geoelectric Investigation in Kaduna, Kaduna State Nigeria. Nigerian Journal of Physics 12:1-7.
    2. Adiat, K. A. N; Olayanju, G. M; Omosuyi G.O. and Ako B.D. 2009. Electromagnetic profiling and electrical resistivity soundings in groundwater investigation of a typical Basement Complex – A case study of Oda town Southwestern Nigeria; Ozean Journal of Applied Sciences, 2 (4):333-359.
    3. Akpoborie, I. A., Nfor, B., Etobro, A.A.I. and Odagwe, S. 2011. Aspects of the geology and groundwater conditions of Asaba, Nigeria; Archives of Applied Science Research, 3(2): 537-550.
    4. Amaresh, K.S.; Raviprakash, S.; Mishra, D.; and Singh, S. 2006. Groundwater potential modeling in Chandraprabha subwater shed, using remote sensing, geoelectrical and GIS. Www.gisdevelopment.net. Retrieved Aug. 2007.
    5. Anudu, G. K., Onwuemesi, A. G., Ajaegwu, N.E., Onuba, L. N. and Omali, A.O. 2008. Electrical resistivity investigation for groundwater in the basement complex terrain: a case study of Idi-Ayunre and its environs, Oyo State, Southwestern Nigeria. Natural and Applied Sciences Journal, 9(2): 1-12
    6. Cratchley, C. R. and Jones, G. P. 1965. An interpretation of the Geology and gravity anomalies of the Benue Valley, Nigeria. Oversea Geol. Surv. Geophys. Paper, No.1.
    7. Edet, A. E and Okereke, C. 2002. “Delineation of shallow groundwater aquifers in the coastal plain sands of Calabar area (Southern Nigeria) using surface resistivity and hydrogeological data”. Journal of African Earth Sciences. 35:433-443.
    8. Ekwe, A. C., Onu, N. N. and Onuorah, K. M. 2006. Estimation of aquifer hydraulic characteristics from electrical sounding data: The case of middle Imo River Basin aquifer, Southeastern Nigeria Journal of spatial hydrology, 6( 2):28-35.
    9. Emenike, E. A. 2000. “Geophysical Exploration for Groundwater in a Sedimentary Environment”: A case study from Nanka over Nanka Formation in Anambra Basin, Southeastern Nigeria. Global Jour. Pure and Applied. Sciences. 7(1):97-110.
    10. Ezeh , C. C. 2011. Geoelectrical studies for estimating aquifer hydraulic properties in Enugu State, Nigeria. International Journal of the Physical Sciences, 6(14): 3319-3329.
    11. Grant, N. K. 1971. South Atlantic, Benue Trough and Gulf of Guinea triple junction. Bull. Geol.Soc. Amer, 82:.2295-2298.
    12. Lucas F. A. and Ishiekwene, E. 2010. Miospore (Pollen and Spore) Biozonation Model for Late Cretaceous –Tertiary Succession of Gbekebo-LWell, Benin Flank, Anambra Basin Nigeria. World Journal of Applied Science and Technology, 2(2), p303 – 308.
    13. Mohammed, I. N, Aboh, H. O. and Emenike, E. A. 2008. Hydrogeophysical investigation for groundwater potential in central Minna, Nigeria. Science World Journal, 3(4):49-54.
    14. Montgomery, D. 2000. The present state of industrial statistics. Quality and Reliability Engineering International, 16(4): 253–254.
    15. Murat, R. C., 1970. Stratigraphy and Paloegeography of the Cretaceous and Lower Tertiary Sediments in Southern Nigeria. In: Dessuvagie, T. F J and Whiteman, A. J(ed) Ibid. 251: 105-113.
    16. Niwas, S., and Singhal, D.C. 1981. Estimation of aquifer transmissivity from Dar Zarrouk parameters in porous media. Hydrology, 50:393-399.
    17. Okoro, E. I.; Egboka, B. C. E. And Onwuemesi, A.G. 2010. Evaluation of the aquifer characteristics of Nanka Sands using hydrogeological method in combination withvertical electrical sounding (VES), Jour. Appl. Sci. Environ. Manage. 14 (2):5 – 9.
    18. Onwuemesi, A. G. And Egboka, B. C. E. 2006. 2-D polynomial curve fitting techniques on water table and hydraulic gradients estimations in parts of Anambra Basin, Southern Nigeria. Natural and Applied sci. jour. 8, (1):6-13.
    19. Oseji, J. O. And Ujuanbi, O. 2009. Hydrogeophysical investigation of groundwater potential in Emu kingdom, Ndokwa land of Delta State,Nigeria. International Journal of Physical Sciences, 4, (5):275-284.
    20. Van Overmeeren, R.A. 1989. Aquifer boundaries explored by geoelecrtrical measurements in the coastal plain of Yemen: A Case of Equivalence. Geophysics. 54(1):38-48.

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  • How to Cite

    Chinwuko, A., Anakwuba, E., Nwokeabia, N., & Onyekwelu, C. (2014). Hydrogeophysical assessment of some parts of Anambra basin, Nigeria. International Journal of Advanced Geosciences, 2(2), 72-81. https://doi.org/10.14419/ijag.v2i2.2304

    Received date: 2014-03-27

    Accepted date: 2014-04-26

    Published date: 2014-06-10