International Journal of Scientific & Technology Research

IJSTR@Facebook IJSTR@Twitter IJSTR@Linkedin
Home About Us Scope Editorial Board Blog/Latest News Contact Us

IJSTR >> Volume 3- Issue 8, August 2014 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Compositional Characteristics And Industrial Potential Of The Lateritic Clay Deposit In Ara-Ijero Ekiti Areas, Southwestern Nigeria.

[Full Text]



Akinola, Oluwatoyin O, Obasi, Romanus A



Index Terms: Residual, Granulometric, Kaolinite, illite, Pottery, Ara-Ijero Ekiti



Abstract : Compositional features and industrial application of the residual clay deposit overlying the Precambrian basement complex in Ara-Ijero Ekiti; Southwestern Nigeria was investigated and it is hereby reported. Granulometric analysis indicates that the mean clay fraction in the deposit is 42.3%, the silt 14.0%, and sand fraction 42.2%. The mean liquid limit, plastic limit and the plasticity index are 47.8%, 26.4% and 21.5% respectively. Mineralogical analysis using X-ray diffraction method indicates the dominance of kaolinite, with illite occuring in subordinate amount while the non-clay impurity is mainly quartz. Assessment of the industrial potentials of the clay based on physical properties, consistency limits and plots of plasticity indices against liquid limits indicate that the clay is inorganic and plastic. It has a mean firing shrinkage value of 9.08%, water absorption capacity 6.1%, specific gravity 2.78, unconfined compressive strength of 3.87KN/m2 and pH value of 5.8. Analytical result on twenty representative samples using Fussion method (FUS-XRF) from Activations laboratory indicates mean SiO2 (48.50%), Al2O3 (28.82%) and Fe2O3 (9.84%) while other oxides (MnO, MgO, CaO, Na2O and K2O) altogether, constitute less than 5% of the bulk composition. The chemical compositions of the clay compares well with other notable clay deposits in Southwestern Nigeria. The geochemistry, thermal characteristics and water absorption capacities are within the ranges recommended for some industrial specifications. With appropriate treatment, the clay could serve as raw material for the manufacture of quality bricks, pottery, ceramics and structural wares.



[1] Okunlola, O. A. Compositional characteristics and functional Industrial Application of Itakpe clay occurrence, Central Nigeria. Eurp.Jour. of Sc. Research, 2008; 19, No. 3 , 453-461.

[2] Okunlola, O. A. and Oluyide, P. O. Physico-chemical features and industrial appraisal of Nahuta clay Deposits, Northwestern Nigeria 2009;

[3] Grant,N.K .Structural distinction between metasedimentary cover and underlying basement in thex600 M.Y,Old Pan-African domain of Northwestern Nigeria, West African Bulletin of Geological Society,America.1978; 89,9, 50-58

[4] Oyawoye, M. O. The geology of the Nigerian basement complex, J. Nigerian Min. Geol. 1964 1 ,87-102

[5] McCurry, P. The Geology of the Precambian to lower paleozoic rocks of northern Nigeria - a review of Geology of Nigeria, C.A. Kogbe (ed) Eliz. Pub.Co, Lagos 1976.15-39.

[6] Oyinloye, A.O. Geological evaluation of clay deposits around Ifon, Ondo State Nigeria. M. Sc. Thesis (Unpub.) Univ. of Ibadan, Nigeria
[7] Turner D. G. Upper Proterozoic Schist Belts in The Nigerian Sector of The Pan- African Province of West Africa, Precambrian Res; 1983;21, 55-79.

[8] Rahaman, M.A., Ajayi, T.R., Oshin, I.O., and Asubiojo, F.O.(1988). Trace element geochemistry and geotechtonic setting of Ile-Ife schist belts. PreC. Geol. of Nigeria, GSN pub. Kaduna.1988; 241-256.

[9] Elueze, A. A. and Bolarinwa, A.T. Assessment of functional Applications of lateritic clay bodies in Ekiti Environ, Southwestern Nigeria. Jour. of Min Geol. 1994; 31,79-87.

[10] Okunlola, O. A and Jimba, S. Compositional trends in relation to Ta-Nb mineralization in Precambrian pegmatitesof Aramoko-Ara-Ijero area, southwestern Nigeria. Jour. of Min. Geol.2006; 42, 2

[11] Okunlola, O.A and Akinola, O. O . Physicochemical Characteristics and Industrial potentials of In-Situ Clay Occurrences Around Ijero-Ekiti, Soutwestern Nigeria, Journal of the Faculty of Science, University of Ibadan. 2011; 8, 2, 114-127.

[12] Cassagrande, A. Classification and identification of soils, Am, Soc. Civil Engr.1948; 113-901.

[13] Carrol, D. Clay minerals:A guide to their identification,Geological Society of America Special Paper , Colorado, U.S.A.1971; 126.

[14] Emofurieta, W.O. and Salami, A.O. A comparative study of two Kaolin Deposits in Southwestern Nigeria. Journ. Min. and Geol.1986; 24.15-20

[15] Huber, J. M. Kaolin Clays, Huber Corporation (Clay Division) Georgia. U.S.A. 1986;65.

[16] Singer, F and Sonja, S.S. Industrial Ceramics publ. Chapman and Hall, London, 1991; 18-56.

[17] Todd, R. G . British Pharmaceutical Codex Publication. R. G. Todd (ed). Pp 234-236 The Pharmaceutical Press, London, UK. 1975.

[18] Keller, W.D (1964) Clays in Kirk-Othmer Encyclopedia of chemical Technology Vol. 5, pp. 541-585, 2nd edition, John Wiley and Son Inc., New York, USA.

[19] National Fertilizer Company of Nigeria (NAFCON), Tender document for supply of kaolin from Nigeria sources. ),(1985).