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Mineralogy and geochemical features of Foumban clay deposits (west Cameroon): genesis and potential applications

  • A. Nkalih Mefire (a1) (a2), R. Yongue Fouateu (a2), A. Njoya (a3), J.R. Mache (a4), P. Pilate (a5), F. Hatert (a6) and N. Fagel (a1)...


Five clay deposits in Foumban, west Cameroon, were studied for their morphological, mineralogical and geochemical properties to determine their suitability for ceramics. The clays were examined with X-ray diffraction, X-ray fluorescence, thermal gravimetric analysis and Fourier-transform infrared spectroscopy. Field studies showed that a homogeneous clayey layer occurs at the upper part of the laterite cover of the interfluves, while the valleys are occupied by a clayey heterogeneous hydromorphic material. The clays are composed of kaolinite, illite, smectite and chlorite, associated with quartz, K-feldspars, plagioclase, goethite, traces of rutile and hematite. Geochemical analyses of these samples show a relatively large amount of SiO2 (45–71%), Al2O3 (14–31%) and relatively little Fe2O3 (up to 11%), suggesting weathering of mainly granitic and rhyolitic parent rocks. The majority of these clays may be used in the production of structural ceramics such as bricks (refractory or not) and tiles. The relatively high proportion of the alkalis (K2O + Na2O; 6–8%) in some samples from Marom and Njindare areas might be responsible for the low firing temperatures. The abundance of smectite limits the application of some Koutaba and Marom clays for structural ceramics, while the high Fe2O3 contents (>8%) in some Bangourain clays indicate that some pre-treatment might be necessary prior to use.


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This paper was presented during the session ‘CZ-01: Clays for ceramics’ of the International Clay Conference 2017.

Guest Associate Editor: Lachen Daoudi



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Boski, T., Pessoa, J., Pedro, P., Thorez, J., Dias, J.M.A. & Hall, I.R. (1998) Factors governing abundance of hydrolysable amino acids in the sediments from the N.W. European Continental Margin (47–50°N). Progress in Oceanography, 42, 145164.
Cailleux, A. (1992) Notice sur le Code des Couleurs des Sols. Boubée, Paris, France.
Cases, J.M., Lietard, O., Yvon, J. & Delon, J.F. (1982) Etude des propriétés cristallographiques, morphologiques et superficielles de la kaolinite désordonnée. Bulletin Minéralogie, 105, 439457.
Christidis, G.E. (2011) Industrial clays. Pp. 341414 in: Advances in the Characterization of Industrial Minerals (Christidis, G.E., editor). EMU Notes in Mineralogy, 9. Mineralogical Society, London, UK.
Cook, H.E., Johnson, P.D., Matti, J.C. & Zemmels, I. (1975) Methods of sample preparation and X-ray diffraction analysis in X-ray mineralogy laboratory. Pp. 9971007 in: Initial Report DSDP XXVIII (Kaneps, A.G. et al. , editor). Printing Office, Washington, DC.
Daoudi, L., Elboudour Elidrissi, H., Saadi, L., Albizane, A., Bennazha, J., Waquif, M., Elouahabi, M. & Fagel, N. (2014) Characteristics and ceramic properties of clayey materials from Amezmiz region (Western High Atlas, Morocco). Applied Clay Science, 102, 139147.
Diko, M.L., Ekosse, G.E., Ayonghe, S.N. & Ntasin, E.B. (2011) Physical characterization of clayey materials from tertiary volcanic cones in Limbe (Cameroon) for ceramic applications. Applied Clay Science, 51(3), 380384.
Djangang, C.N., Elimbi, A., Lecomte, G.L., Nkoumbou, C., Soro, J., Blanchart, P., Bonnet, J.P. & Njopwouo, D. (2008a) Sintering of clay-chamotte ceramic composites for refractory bricks. Ceramic International, 34(5), 12071213.
Djangang, C.N., Elimbi, A., Lecomte, G.L., Soro, J., Nkoumbou, C., Yvon, J., Blanchart, P. & Njopwouo, D. (2008b) Refractory ceramics from clays of Mayouom and Mvan in Cameroon. Applied Clay Science, 39(1–2), 1018.
Djangang, C.N., Elimbi, A., Melo, U.C., Nkoumbou, C., Lecomte, G., Yvon, J., Bonnet, J.P. & Njopwouo, D. (2007) Characteristics and ceramic properties of clays from Mayouom deposit (west Cameroon). Industrial Ceramics, 27(2), 7988.
Dondi, M., Raimondo, M. & Zanelli, C. (2014) Clays and bodies for ceramic tiles: reappraisal and technological classification. Applied Clay Science, 96, 91109.
Ekosse, G. (2001) Provenance of the Kgwakgwa kaolin deposit in south eastern Botswana and its possible utilization. Applied Clay Science, 20, 137152.
Ekosse, G.E. (2010) Kaolin deposits and occurrences in Africa: geology, mineralogy and utilization. Applied Clay Science, 50(2), 212236.
Elimbi, A. & Njopwouo, D. (2002) Firing characteristics of ceramics from the Bomkoul kaolinitic clay deposit (Cameroun). Tile & Brick International, 18(6), 364369.
Elimbi, A., Yeugouo, E., Nenwa, J., Liboum, & Njopwouo, D. (2003) Caractérisations chimiques et minéralogiques de deux matériaux du gisement argileux de Bakong (Cameroun). African Journal of Material and Minerals, 6(1), 1319.
Fabbri, B. & Fiori, C. (1985) Clays and complementary raw materials for stoneware tiles. Mineralogica & Petrographica Acta, 29A, 535545.
Fadil-Djenabou, S., Ndjigui, P.D. & Mbey, J.A. (2014) Mineralogical and physicochemical characterization of Ngaye alluvial clays (northern Cameroon) and assessment of its suitability in ceramic production. Journal of Asian Ceramic Society, 3, 5058.
Fialips, C.I., Petit, S. & Decarreau, A. (1999) Hydrothermal formation of kaolinite from various metakaolins. Clay Minerals, 35, 559572.
Fiori, C., Fabbri, B., Donati, F. & Venturi, I. (1989) Mineralogical composition of the clay bodies used in the Italian tiles industry. Applied Clay Science, 4, 461473.
Goldberg, K. & Humayun, M. (2010) The applicability of the Chemical Index of Alteration as a paleoclimatic indicator: an example from the Permian of the Paraná Basin, Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology, 293, 175183.
Israde-Alcántara, I., Robles-Camacho, J. & Domínguez, J.M. (2008) Beidellite-nontronite clays in Neogene sediments from Cuitzeo-Charo lacustrine basin Michoacán, México. Geological setting and paleoenvironmental implications. Boletín de la Sociedad Geológica Mexicana, 60(2), 159171.
Kamseu, E., Leonelli, C., Boccaccini, D.N., Veronesi, P., Miselli, P., Pellacani, G. & Melo, U.C. (2007) Characterization of porcelain compositions using two china clays from Cameroon. Ceramic International, 33(5), 851857.
Kornmann, M & Ingénieurs du Centre Technique des Tuiles et Briques (2005) Matériaux de Construction en Terre Cuite, Fabrication et Propriétés. Pp. 3334. Editions Septima, Paris, France.
Ligas, P., Vras, I., Dondi, M. & Marsigli, M. (1997) Kaolinitic materials from Romana (north-west Sardinia, Italy) and their ceramic properties. Applied Clay Science, 12, 145163.
Mackenzie, R.C. (1957) The Differential Thermal Investigation of Clays. Mineralogical Society, London, UK.
Manning, D.A.C. (1995) Introduction to Industrial Minerals. Chapman & Hall, London, UK.
Moore, D. & Reynolds, R.C. Jr (1997) X-Ray Diffraction and the Identification and Analysis of Clay Minerals. 2nd ed. Oxford University Press, Oxford, UK.
Moundi, A., Wandji, P., Bardinzeff, J.M., Menard, J.J., Okomo Atouba, L.S., Mouncherou, O.F., Reusser, E., Bellon, H. & Tchoua, F.M. (2007) Les basaltes éocènes à affinité transitionnelle du Plateau Bamoun, témoin d'un réservoir mantellique enrichi sous la ligne volcanique du Cameroun. Comptes Rendus Géoscience, 339, 396406.
Moundi, A., Ménard, J.J., Reusser, E., Tchoua, F.M. & Dietrich, V.J. (1996) Découverte de basaltes transitionnels dans le secteur continental de la Ligne du Cameroun (Massif du Mbam, Ouest Cameroun). Comptes Rendus Académie des Sciences, Paris, 322, 831837.
Moundi, A., Wandji, P., Ghogomu, R.T., Bardintzeff, J.M., Njilah, I.K., Foumboure, I., Ntieche, B. (2009) Existence of quaternary ankaramites among Tertiary floods basalts at Koutaba (Bamoun Plateau, western Cameroon): petrology and isotope data. Review of the Bulgarian Geological Society, 70, 115124.
Murray, H.H. & Keller, W.D. (1993) Kaolins, kaolins and kaolins. Pp. 124 in: Kaolin Genesis and Utilization (Murray, H., Bundy, W. & Harvey, C., editors). Clay Minerals Society Special Publication 1, Chantilly, VA, USA.
Ndjigui, P.D., Ebah Abeng, S.A., Ekomane, E., Nzeukou, N.A., Ngo Mandeng, F.S. & Lindjeck, M.M. (2015) Mineralogy and geochemistry of pseudogley soils and recent alluvial clastic sediments in the Ngog-Lituba region, southern Cameroon: an implication to their genesis. Journal of African Earth Sciences, 108, 114.
Ndjigui, P.D., Mbey, J.A. & Nzeukou, N.A. (2016) Mineralogical, physical and mechanical features of ceramic products of the alluvial clastic clays from the Ngog-Lituba region, southern Cameroon. Journal of Building Engineering, 5, 151157.
Nesbitt, H.W. & Young, G.M. (1984) Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic considerations. Geochimica et Cosmochimica Acta, 48, 15231534.
Ngon Ngon, G.F., Yongue-Fouateu, R., Bitom, D.L. & Bilong, P. (2009) A geological study of clayey laterite and clayey hydromorphic material of the region of Yaoundé (Cameroon): a prerequisite for local material promotion. Journal of African Earth Sciences, 55, 6978.
Ngon Ngon, G.F., Etame, J., Ntamak-Nida, M.J., Mbog, M.B., Maliengoue Mpondo, A.M., Yongue-Fouateu, R. & Bilong, P. (2012) Geological study of sedimentary clayey materials of the Bomkoul area in the Douala region (Douala sub-basin, Cameroon) for the ceramic industry. Comptes Rendus Geoscience, 344, 366376.
Njonfang, E., Moreau, C. & Tchoua, M.F. (1998) La bande mylonitique Foumban-Bankim, Ouest-Cameroun. Une zone de cisaillement de haute température. Comptes Rendus Académie des Sciences, Paris, 327, 735741.
Njonfang, E., Nono, A., Kamgang, P., Ngako, V. & Tchoua, M. F. (2011) Cameroon Volcanic Line alkaline magmatism (central Africa): a reappraisal. Pp. 173–191 in: Volcanism and Evolution of the African Lithosphere, The Geological Society of America Special Papers 478 (Becaluva, L., Bianchini, G.B. & Wilson, M., editors). Geological Society of America, Boulder, CO, USA.
Njoya, A., Nkoumbou, C., Grosbois, C., Njopwouo, D., Njoya, D., Courtin, N.A., Yvon, J. & Martin, F. (2006) Genesis of Mayouom kaolin deposit (west Cameroon). Applied Clay Science, 32, 125140.
Nkalih Mefire, A., Njoya, A., Yongue Fouateu, R., Tapon Nsandamoun, A., Nzeukou Nzeugang, A., Mache, J.R., Siniapkine, S., Flament, P., Melo Chinje., U., Ngono, A. & Fagel, N. (2015) Kaolin occurrence in Koutaba (west-Cameroon): mineralogical and physicochemical characterization for ceramic products. Clay Minerals, 50, 593606.
Nkoumbou, C., Villiéras, F., Barres, O., Bihannic, I., Pelletier, M., Razafitianamaharavo, A., Metang, V., Yonta Ngoune, C., Njopwouo, D. & Yvon, J. (2008) Physicochemical properties of talc ore from Pout-Kelle and Memel deposits (central Cameroon). Clay Minerals, 43(2), 317337.
Nkoumbou, C., Njoya, A., Njoya, D., Grosbois, C., Njopwouo, D., Yvon, J. & Martin, F. (2009) Kaolin from Mayouom (Western Cameroon): industrial suitability evaluation. Applied Clay Science, 43, 118124.
Nzeukou, N.A., Fagel, N., Njoya, A., Beyala Kamgang, V., Eko Medjo, R. & Chinje Melo, U. (2013) Mineralogical and physico-chemical properties of alluvial clays from Sanaga valley (Center, Cameroon): suitably for ceramic application. Applied Clay Science, 83–84, 238243.
Nzeukou, A., Traina, K., Medjo, E.R., Kamseu, E., Njoya, A., Melo, U.C., Kamgang, B.V., Cloots, R. & Fagel, N. (2014) Mineralogical and physical changes during sintering of plastic red clays from Sanaga Swampy Valley, Cameroon. Interceram, 63, 186192.
Nzina, C.A., Nzenti, J.P., Njiosseu Tanko, E.L., Ganno, S. & Ngnotue, T. (2010) Synkinematic ferro-potassic magmatism from the Mekwene-Njimafofire Foumban Massif, along the Foumban-Banyo shear zone in central domain of Cameroon Pan-African fold belt. Journal of Geology and Mining Research, 2(6), 142158.
Okomo Atouba, L., Chazot, G., Moundi, A., Agranier, A., Bellon, H., Nonmotte, P., Nzenti, J.P. & Kankeu, B. (2016) Mantle sources beneath the Cameroon Volcanic Line: geochemistry and geochronology of the Bamoun plateau mafic rocks. Arabian Journal of Geoscience, 9, 270.
Pialy, P., Tessier Doyen, N., Njopwouo, D. & Bonnet, J.P. (2009) Effects of densification and mullitization on the evolution of the elastic properties of a clay-based material during firing. Journal of the European Ceramic Society, 29, 15791586.
Rajput, R.K. (2004) Engineering Materials. S. Chand and Company Ltd, New Delhi, India.
Reeves, G.M., Sims, I. & Cripps, C. (2006) Clay Materials Used in Construction. Engineering Geology Special Publication, 21. Geological Society, London, UK.
Ridgeway, J.M. (1982) Common Clay and Shale. Mineral Resources Consultative Committee, Mineral Dossier, 22. HMOS, London, UK.
Segalen, P. (1967) Les sols de la vallée du Noun. Cahier ORSTOM, Série Pédologie, V(3), 287345.
Tardy, Y. & Roquin, C. (1998) Dérive des Continents, Paléoclimats et Altérations Tropicales. Edition BRGM, Orléans, France.
Tassongwa, B., Nkoumbou, C., Njoya, D., Njoya, A., Tchop, J.L., Yvon, J. & Njopwouo, D. (2014) Geochemical and mineralogical characteristics of the Mayouom kaolin deposit, west Cameroon. Earth Science Research, 3(1), 94107.
Velde, B. & Meunier, A. (2008) The Origin of Clays Minerals in Soils and Weathered Rocks. Springer Verlag, Berlin, Germany.
Vieira, C.M.F. & Sanchez Monteiro, R.S.N. (2008) Characteristics of clays and properties of building ceramics in the state of Rio de Janeiro, Brazil. Construction and Building Materials, 22, 781787.
Wandji, P. (1995) Le Volcanisme Récent de la Plaine du Noun (Ouest Cameroun). Volcanologie, Pétrologie, Géochimie et Pouzzolanicité. State doctoral thesis, Université Yaoundé I, Yaoundé, Cameroon.
Wandji, P., Tchokona Seuwui, D., Bardintzeff, J.-M., Bellon, H. & Platevo, B. (2008) Rhyolites of the Mbepit Massif in the Cameroon Volcanic Line: an early extrusive volcanic episode of Eocene age. Mineralogy and Petrology, 94, 271286.
Weecksteen, G. (1957) Carte Géologique de Reconnaissance au 1/500 000, Feuille Douala-Est avec Notice Explicative. Direction Mines Géologie du Cameroon.
Wilson, M.J. (1998) The origin and formation of clay minerals in soils: past, present and future perspectives. Clay Minerals, 34, 725.



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