Hydrogeochemistry and Stable Isotopes (δ¹⁸O and δ²H) Assessment of Ikogosi Spring Waters

Abel O. Talabi^1,

¹Department of Geology, Ekiti State University, Ado-Ekiti, Nigeria

Cite this paper:
Abel O. Talabi. Hydrogeochemistry and Stable Isotopes (δ¹⁸O and δ²H) Assessment of Ikogosi Spring Waters. American Journal of Water Resources. 2013; 1(3):25-33. doi: 10.12691/ajwr-1-3-2

Abstract

Ikogosi warm spring is a unique tourist centre where warm and cold spring waters flow together. Consequently, understanding the hydrochemical processes and recharge source are critical to the sustainability and management of the warm spring. Hence, stable isotopes (δ¹⁸O and δ²H) and hydrochemical study of Ikogosi spring waters was carried out to conceptualize the recharge source and the extent of water-rock interaction on the hydrochemical evolution of the waters. The study approach involved field sampling and in-situ measurements of physico-chemical parameters followed by laboratory hydrochemical and stable isotope analyses of the spring water samples. The hydrochemical analysis revealed that Ikogosi spring water is alkaline in nature with values ranging between 7.4 and 9.0. The TDS ranges from 14.3 to 66.8 mg/L with mean value of 49.2mg/L while the TH is from 6.3 to 39.0mg/L with mean value of 27.61mg/L. All EC values for the sampled spring waters were below 1000µS/cm indicating fresh water. Ca²⁺ was the dominant cation with value ranging from 2.2-9.6mg/L while Cl- was the dominant anion with value ranging from 88.6-144.0mg/L. The spring water is low mineralized and hydrochemically potable. Rock-water interactions were the dominant processes controlling the major ion composition of the spring while the dominant water was Ca (Mg)-Cl type. Stable isotopes analysis revealed recharge from recent precipitation. Conclusively, Ikogosi spring waters have low EC and TDS along with low total hardness (TH) values suggesting a low mineralized soft fresh water system recharged from recent precipitation with limited residence time.

Keywords:
hydrochemical processes recharge source stable isotopes potable low mineralized

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References:

[1]	Lamoreaux, P.E. and Tanner, J.T, Springs and bottled waters of the World (eds.). Ancient History Source, Occurrence, Quality and Use. New York. Springer-Verlag, 2001.
[2]	Aniah, E.J., Eja, E.I., Out, J.E. and Ushie, M.A, Patronage of ecotourism potential as a strategy for sustainable tourism development in Cross River State, Nigeria. J. Geography and Geology, 2009, 1 (2): 20-27.
[3]	Garba, M.L., Kurowaska, E., Schoeneich, K. and A bdullahi, I, Rafin Rewa Warm Spring, A new geothermal discovery. American International Journal of Contemporary Research, 2012. Vol.2, No. 9
[4]	Hairul, N.B.I., Ojo, K.A., Kasimu,M.A., Garfar, O.Y., Okoloba, V. and Mohammed, S.A, Ikogosi warm water resorts: What you don’t know?. Interdisciplinary Journal of Contemporary Research in Business, 2013. Vol.4, No. 9.
[5]	Das, B.K., Kakar, Y.P., Moser, H. and Stichler, W, Deuterium and Oxygen-18 studies in groundwater of the Delhi area, India. J. Hydrol , 1998, 98:133-146.
[6]	Sklash, M.G, Environmental isotope studies of storm and snowmelt runoff generation. In: M.G. Anderson and T.P. Burt (Eds), Process Studies in Hillslope Hydrology, John Wiley and Sons, Chichester, U.K., 1990, pp. 401-435.
[7]	Rogers, A.S., Imevbore A.M.A. and Adegoke, O.S, Physical and chemical properties of the Ikogosi warm spring, Western Nigeria. J. Mining Geol., 1969 4: 69-81.
[8]	Adegbuyi, O., Ajayi, O.S. and Odeyemi, I.B, Prospects of Hot-Dry-Rock (HDR) geothermal energy resource around the Ikogosi warm spring in Ekiti state, Nigeria. J. Renew. Energy, 1996 4: 58-64.
[9]	Oladipo, A.A., Oluyemi, E.A., Tubosun, I.A., Fasisi, M.K. and Ibitoye, F.I, Chemical Examination of Ikogosi Warm Spring in South Western Nigeria. Journal of Applied Sciences, 2005, 5 (1): 75-79.
[10]	Ojo, J.S., Olorunfemi, M.O. and Falebita, D.E, An Appraisal of the Geologic Structure beneath the Ikogosi Warm Spring in South- Western Nigeria Using Integrated Surface Geophysical Methods. Earth Sciences Research Journal. 2011, 15(1):27-34.
[11]	Piper, A. M, A graphic procedure in the geochemical interpretationof water analyses. Trans. Am.Geophy. Union 1944, 25: 914-928.
[12]	Gibbs, R. J, Mechanisms controlling world water chemistry. Science 1970. 17: 1088-1090
[13]	Nigerian Standard for Drinking Water Quality, NSDWQ. Published by Nigerian Industrial Standard 2007, 554, 1-14.
[14]	W orld Health Organization (WHO), “Guidelines for Drinking Water Quality”, 2004, Vol.1: Recommendations (3rd edn). WHO, Geneva.
[15]	Ammar, Tiri and Abderrahmane, Boudoukha, Hydrochemical Analysis and Assessment of Surface Water Quality in Koudiat Medouar Reservoir, Algeria. Euro Journals Publishing, Inc. ISSN 1450-216X, 2010, Vol.41 No.2, pp.273-285.
[16]	Fetter, C. W, Applied Geology. CBS Publishers & Distributors, 1990, New Delhi, India.
[17]	McGowan, W, Water processing: residential, commercial, light-industrial, 3rd ed. Lisle, IL, 2000, Water Quality Association.
[18]	http://nevada-outback-gems.com/Prospecting_Basics/Rocks_4_prospector_p1.htm.
[19]	Aghazadeh , N and Mogaddam, A. A, Assessment of Groundwater Quality and its Suitability for Drinking and Agricultural Uses in the Oshnavieh Area, Northwest of Iran, Journal of Environmental Protection, 2010, 1, 30-40.
[20]	Hem, J. D, Study and interpretation of the chemical characteristics of natural water. US Geological Survey Water-supply Paper, 1985, 2254, 3rd ed., p263.
[21]	Back, W. and Hanshaw, B (eds), Chemical geohydrology advances in hydroscience; (Academic Press), 1965, pp. 49-109.
[22]	Schoeller, H, Geochemistry of groundwater. An international guide for research and practice. UNESCO, 1967, chap 15, pp 1-18.
[23]	McFarlane, M.J., Chilton, P.J and Lewis, M.A,, Geomorphological controls on borehole yields: a statistical study in an area of basement rocks in central Malawi. In: Wright, E.P. and Burgess, W.G. (eds.). Hydrogeology of crystalline Basement Aquifers in Africa. Geological Society Special Publication, 1992, No 66. Geological Society, London.
[24]	Nkotagu, H, Application of environmental isotopes to groundwater recharge studies in a semi – arid fractured crystalline basement area of Dodoma, Tanzania. Journal of African Earth Science, 1996, 22(4): 443-457.
[25]	Praamsma, T., Novakowski, K., Kyser, K. and Hall, K, Using stable isotopes and hydraulic head data to investigate groundwater recharge and discharge in a fractured rock aquifer. Journal of Hydrology, 2009, 366: 35-45.
[26]	Sukhija, B.S., Reddy, D.V., Nagabhushanam P., Bhattacharya, S.K., Jani, R.A. and Kumar, D, Characterisation of recharge processes and groundwater flow mechanisms in weathered-fractured granites of Hyderabad (India) using isotopes. Hydrogeol J, 2006, 14 (5):663-674
[27]	Horst, A., Mahlknecht, J., merkel, B.J., Aravena, R. and Ramos-Arroyo, Y.R, Evaluation of the recharge processes and impacts of irrigation on groundwater using CFCs and radiogenic isotopes in the Silao_Romita basin, Mexico. Hydrgeol. J., 2008, 16(8): 1601-1614.
[28]	Craig, H, Isotopic Variation in Meteoric Water, Science, 1961, Vol. 133, No. 3465, 1961, pp 1702-1703.
[29]	Rozanski, K., Araguás- Araguás, L. and Gonfitiantini, R, Isotopic patterns in modern global precipiotation. American Geophysical Union Monograph, 1993, 78, AGU, Washington, DC.
[30]	Murherjee, A,. Fryar, A. E.and Rowe, H. D, Regional-scale stable isotopic signatures of recharge and deep groundwater in the arsenic affected areas of West Bengal, India. Journal of Hydrology. 2007, Vol.334, pp.151-161.
[31]	Federal Institute of Geosciences and Natural Resources Hannover, Germany. Lake Chad Sustainable Water Management, Lake Chad Commission, 2010. Project Activities Report No. 3.