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Estimating the indices of inter-transmissibility magnitude of active surficial hydrogeologic units in Itu, Akwa Ibom State, southern Nigeria

  • N. J. George
  • J. C. Ibuot
  • A. M. Ekanem
  • A. M. George
Original Paper

Abstract

Itu Local Government Area is prone to groundwater contamination occasioned by saltwater due to the geographical location and the aquifer unit inter-transmissibility between the communicating/interconnected pores of the water-bearing units. This inter-transmissibility causes the continuous distribution of contamination among interconnected aquifer repositories. The study integrated the surface electric mapping and laboratory analysis of geologic samples and their corresponding water samples in estimating the transmissibility-dependent petrophysical parameters. The functional relationships between parameters have been determined. Maps of the spatial distribution of the estimated geohydraulic parameters have been drawn. Quantitative links of measured parameters to transmissibility have established. The resulting inferences based on the indices or magnitudes of the parameters measured helped in delineating the directions of water transmission within and across the hydrogeological units under study. The inferred result of permeability serves as a guide in identifying the southern zone of the area under study as having relatively reduced hydraulic pressure gradient differential, while the northern region has on the average, high hydraulic gradient differentials. The results of directions of inter-transmissibility of hydrodynamic properties in aquifer units are promising and capable of increasing the depth of knowledge on groundwater contamination and hence provide substantial input parameters that can enhance groundwater modelling within and near the study location.

Keywords

Permeability Communicating pores Transmissibility Pore properties Vertical electrical sounding (VES) Geologic samples 

Notes

Acknowledgments

The authors are thankful to the Millennium Development Goal Initiative for providing the wherewithal which enabled authors to undergo the analysis of water and cored geological samples that led to the realisation of the results. The comments by reviewers and editors, which improved the quality of this work, are acknowledged.

References

  1. Akpan AE, Ugbaja AN, George NJ (2013) Integrated geophysical, geochemical and hydrogeological investigation of shallow groundwater resources in parts of the Ikom-Mamfe embayment and the adjoining areas in Cross River State, Nigeria. Environ Earth Sci 70(3):1435–1456.  https://doi.org/10.1007/s12665-0132232-3. CrossRefGoogle Scholar
  2. Akpan AE, George NJ, George AM (2009) Geophysical investigation of some prominent gully erosion sites in Calabar, south-eastern Nigeria and its implications to hazard prevention. Disaster Adv 2(3):46–50Google Scholar
  3. Akpan FS, Etim ON, Akpan AE (2006) Geoelectrical investigation of groundwater potential in parts of Etim Ekpo local government area, Akwa Ibom State. Nigerian. J Phys 18:39–44Google Scholar
  4. American Petroleum Institute, API (1960) Recommended practice for core analysis procedure. Report 40:55Google Scholar
  5. Archie GE (1942) The electrical resistivity log as an aid in determining some reservoir characteristics. Trans Am Inst Min Metall Pet Eng 146:54–62Google Scholar
  6. Aristodemou EA, Thomas-Betts A (2000) DC resistivity and induced polarisation investigations at a waste disposal site and its environments. J Appl Geophys 44:275–302CrossRefGoogle Scholar
  7. Batayneh AT (2009) A hydroeophysical model of the relationship between geoelectric and hydraulic parameters, Central Jordan. J water Resour Prot 1:400–407CrossRefGoogle Scholar
  8. Bhattacharya PK, Patra HP (1968) Direct current geoelectric sounding principles and interpretation. Elsevier Co. Inc, Amsterdam, p 136Google Scholar
  9. Chakravarthi V, Shankar GBK, Murahidharan D, Harinarayana T, Sundararajan N (2007) An integrated geophysical approach for imaging sub basalt sedimentary basins: case study of Jam River Basin, India. Geophysics 72(6):B141–B147CrossRefGoogle Scholar
  10. Borner F, Schopper JR, Weller A (1996) Evaluation of transport and storage properties in the soil and groundwater zone from induced polarization measurements. Geophys Prospect 44:583–611CrossRefGoogle Scholar
  11. Christensen NB, Sorensen KI (1998) Surface and borehole electric and electromagnetic methods for hydrogeological investigations. Eur J Environ Eng Geophys 31:75–90Google Scholar
  12. Domenico PA, Schwartz FW (1990) Physical and chemical hydrogeology. Wiley Press, New York, pp 324Google Scholar
  13. Edet AE, Worden RH (2009) Monitoring of the physical parameters and evaluation of the chemical composition of river groundwater in Calabar (southern eastern Nigeria). Environ Monit Assess 157:243–258CrossRefGoogle Scholar
  14. Emerson DW (1969) Laboratory electrical resistivity measurements of rocks. Proc Australas Inst Min Metall 230:51–62Google Scholar
  15. Evans UF, George NJ, Akpan AE, Obot IB, Ikot AN (2010) A study of superficial sediments and aquifers in parts of Uyo local government area, Akwa Ibom State, Southern Nigeria, using electrical sounding method. E-J Chem 7(3):1018–1022CrossRefGoogle Scholar
  16. Farauta BK, Egbule CL, Agwu AE, Idrisa YL, Onyekuru NA (2012) Farmers’ adaptation initiatives to the impact of climate change on agriculture in northern Nigeria. J Agric Ext 16:132–144.  https://doi.org/10.4314/jae.v16i1.13 Google Scholar
  17. Fetters CW (1994) Applied hydrogeology, third edn. Prentice Hall Inc., New Jersey, p 600Google Scholar
  18. Galehouse JS (1971) Sedimentation analysis. In: Carver RF (ed) Procedures in sedimentary petrology. Wiley-interscience, New York, p 653Google Scholar
  19. George NJ, Akpan AO, Umoh A (2013) Preliminary geophysical investigation to delineate the groundwater conductive zones in the coastal region of Akwa Ibom State, Southern Nigeria, around the Gulf of Guinea. Int J Geosci 4:108–115.  https://doi.org/10.4236/ijg.2013.4101. CrossRefGoogle Scholar
  20. George NJ, Nathaniel EU, Etuk SE (2014a) Assessment of economically accessible groundwater reserve and its protective capacity in Eastern Obolo Local Government Area of Akwa Ibom State, Nigeria, using electrical resistivity method. Int J Geophys 2014:1–10.  https://doi.org/10.1155/2014/578981 Google Scholar
  21. George NJ, Ubom AI, Ibanga JI (2014b) Integrated approach to investigate the effect of leachate on groundwater around the Ikot Ekpene Dumpsite in Akwa Ibom State, South-eastern Nigeria. Int J Geophys 2014:1–10.  https://doi.org/10.1155/2014/174589 Google Scholar
  22. George NJ, Emah JB, Ekong UN (2015a) Geohydrodynamic properties of hydrogeological units in parts of Niger Delta, southern Nigeria. J Afr Earth Sci 105:55–63.  https://doi.org/10.1016/j.jafrearsci.2015.02.009 CrossRefGoogle Scholar
  23. George NJ, Ibanga JI, Ubom AI (2015b) Geoelectrohydrogeological indices of evidence of ingress of saline water into freshwater in parts of coastal aquifers of Ikot Abasi, southern Nigeria. J Afri Earth Sci 109:37–46.  https://doi.org/10.1016/j.jafrearsci.2015.05.001 CrossRefGoogle Scholar
  24. George NJ, Ibuot JC, Obiora DN (2015c) Geoelectrohydraulic parameters of shallow sandy aquifer in Itu, Akwa Ibom State (Nigeria) using geoelectric and hydrogeological measurements. J Afr Earth Sci 110:52–63.  https://doi.org/10.1016/j.jafrearsci.2015.06.006 CrossRefGoogle Scholar
  25. George NJ, Akpan AE, Obot IB (2010) Resistivity study of shallow aquifer in parts of southern Ukanafun Local government area, Akwa Ibom State. J Chem 7(3):693–700Google Scholar
  26. George NJ, Akpan AE, Ekanem AM (2016a) Assessment of textural Variational pattern and electrical conduction of economic and accessible quaternary Hydrolithofacies via Geoelectric and laboratory methods in SE Nigeria: a case study of select locations in Akwa Ibom state. J Geol Soc India 88(4):517–528CrossRefGoogle Scholar
  27. George NJ, Obiora DN, Ekanem AM, Akpan AE (2016b) Approximate relationship between frequency-dependent skin depth resolved from geoelectromagnetic pedotransfer function and depth of investigation resolved from geoelectrical measurements: a case study of coastal formation, southern Nigeria. J Earth Syst Sci 125(7):1379–1390.  https://doi.org/10.1007/s12040-016-0744-4 CrossRefGoogle Scholar
  28. George NJ, Ekanem AM, Ibanga JI, Udosen NI (2017) Hydrodynamic implications of Aquifer Quality Index (AQI) and Flow Zone Indicator (FZI) in groundwater abstraction: a case study of coastal hydrolithofacies in South-eastern Nigeria. J Coast Conserv 21(4):759–776.  https://doi.org/10.1007/s11852-017-0535-3 CrossRefGoogle Scholar
  29. George NJ, Obianwu VI, Obot IB (2011a) Estimation of groundwater Reserve in Unconfined Frequently Exploited Depth of aquifer using a combined surficial geophysical and laboratory techniques in the Niger Delta, southern Nigeria. Advances in applied science research, Pelegia research. Library 2(1):163–177Google Scholar
  30. George NJ, Obianwu VI, Udofia KM (2011b) Estimation of distribution of aquifer parameters in the southern part of Akwa Ibom state, southern Nigeria using surficial geophysical measurements. Int Rev Physics 5(2):53–59Google Scholar
  31. Gowd SS (2004) Electrical resistivity surveys to delineate groundwater potential aquifers in Peddavanka watershed, Anantapur District, Andhra Pradesh, India. Environ Geol 46:118–131.  https://doi.org/10.1007/s00254-004-1023-2. Google Scholar
  32. Gurunadha Rao VVS, Tamma Rao G, Surinaidu L, Rajesh R, Mahesh J (2011) Geophysical and geochemical approach for seawater intrusion assessment in the Godavari Delta basin, a.P., India. Water Air Soil Pollut 217:503–514.  https://doi.org/10.1007/s11270-010-0604-9. CrossRefGoogle Scholar
  33. Ibanga JI, George NJ (2016) Estimating geohydraulic parameters, protective strength, and corrosivity of hydrogeological units: a case study of ALSCON, Ikot Abasi, southern Nigeria. Arab J Geosci 9(5):1–16.  https://doi.org/10.1007/s12517-016-2390-1 CrossRefGoogle Scholar
  34. Ibuot JC, Akpabio GT, George NJ (2013) A survey of the repository of groundwater potential and distribution using geoelectrical resistivity method in Itu local government area (L.G.A), Akwa Ibom State, southern Nigeria. Central Eur J Geosci 5(4):538–547.  https://doi.org/10.2478/s13533-012-0152-5. Google Scholar
  35. Keller GV, Frischknecht FC (1966) Electrical methods in geophysical prospecting. Pergamon, London, p 517Google Scholar
  36. Martínez AG, Takahashi K, Núñez E, Silva Y, Trasmonte G, Mosquera K, Lagos P (2008) A multi-institutional and interdisciplinary approach to the assessment of vulnerability and adaptation to climate change in the Peruvian Central Andes: problems and prospects. Advances in. Geosci J 14:257–260Google Scholar
  37. Obianwu VI, George NJ, Okiwelu AA (2011a) Preliminary geophysical deductions of lithological and hydrological conditions of the north-eastern sector of Akwa Ibom State, South eastern Nigeria. Res J Appl Sci Eng Technol 3(8):806–811Google Scholar
  38. Obianwu VI, George NJ, Udofia KM (2011b) Estimation of aquifer hydraulic conductivity and effective porosity distributions using laboratory measurements on Core samples in the Niger Delta, Southern Nigeria. Int Rev Phys 5(1):19–24Google Scholar
  39. Orellana E, Mooney AM (1966) Master curve and tables for vertical electrical sounding over layered structures. Interciencia, EscuelaGoogle Scholar
  40. Pipe H Riepe L Schopper JR (1981) Calculating permeability from surface area measurements. Transections 7th European Logging SymposiumGoogle Scholar
  41. Rapti-Caputo D (2010) Influence of climatic changes and human activities on the salinization process of coastal aquifer systems. Ital J Agron 3:67–79CrossRefGoogle Scholar
  42. Reijers TJA, Petters SW (1987) Depositional environment and diagenesis of Albian carbonates in Calabar Flank, S. E. Nigeria. J Pet Geol 10:283–294CrossRefGoogle Scholar
  43. Reijers TJA, Petters SW, Nwajide CS (1997) The Niger Delta Basin. In: Selley RC (ed) African Basins—Sedimentary Basin of the World 3. Elsevier Science, Amsterdam, pp 151–172CrossRefGoogle Scholar
  44. Riddell ES, Lorentz SA, Kotze DC (2010) A geophysical analysis of hydro-geomorphic controls within a headwater wetland in a granitic landscape, through ERI and IP. J Hydrol Earth Syst Sci 14:1697–1713.  https://doi.org/10.5194/hess-14-1697-2010. CrossRefGoogle Scholar
  45. Roy KK, Elliot HM (1981) Some observations regarding depth of exploration in DC electrical methods. Geoexploration 19:1–13CrossRefGoogle Scholar
  46. Sabet MA (1975) Vertical electrical resistivity sounding to locate groundwater resources: a feasibility study. Virginia Polytechnical institute. Water Resour Bull 73:63Google Scholar
  47. Singh KP (2005) Nonlinear estimation of aquifer parameters from surficial resistivity measurements. J Hydrol Earth Syst Sci Discuss 2:917–938 SRef-ID: 1812–2116/hessd/2005–2-917CrossRefGoogle Scholar
  48. Van Overmeeren R (1989) Aquifer boundaries explored by geoelectrical measurements in the coastal plain of Yemen: a case study of equivalence. Geophysics 54:38–48CrossRefGoogle Scholar
  49. Vender Velpen BPA (1988) A computer processing package for D.C. Resistivity interpretation for IBM compatibles. ITC Journal 4, The NetherlandsGoogle Scholar
  50. Waxman SH, Smits LJM (1968) Electrical conductivities in oil-bearing sands. J Soc Pet Eng 8:107–122CrossRefGoogle Scholar
  51. Zohdy AAR, Eaton GP, Mabey DR (1974) Application of surface geophysics to groundwater investigation. USGS Techniques of water resources investigations, Book 2, Chapter D1, pp 116Google Scholar
  52. Zohdy AAR (1965) The auxiliary point method of electrical sounding interpretation and its relationship to the Dar-Zarrouk parameters. Geophysics 30:644–660CrossRefGoogle Scholar

Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  • N. J. George
    • 1
  • J. C. Ibuot
    • 2
  • A. M. Ekanem
    • 1
  • A. M. George
    • 3
  1. 1.Department of Physics (Geophysics Research Group)Akwa Ibom State UniversityMkpat-EninNigeria
  2. 2.Department of Physics and AstronomyUniversity of NigeriaNsukkaNigeria
  3. 3.Department of PhysicsUniversity of CalabarCalabarNigeria

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