Talc schist deposits from central Cameroon: Mineralogical and physico-chemical characterization

[en] Talc schist deposits are reported in central Cameroon region, and different alteration zones were determined depending on differences related to the texture and color of the host rock. For the purpose of determining mineralogical and physicochemical characteristics of talc schist, a total of 45 samples from the sites studied were collected and analyzed using an array of physico-chemical methods. Talc schist samples are mainly composed of variable amount of talc associated with plagioclase and clay minerals. Three groups of mineral association were determined: i) talc with small amount of chlorite and traces of kaolinite, ii) talc with high amount of chlorite, iii) variable amount of talc with plagioclase and clay minerals. The talc schist samples have homogeneous grain-sizes and are classified as silty sand or sandy silt. The occurrence of Ni and Cr in the talc schists are consistent with the composition of the talc deposits formed in relation to ultramafic rocks. The genesis of talc is due to hydrothermal fluid circulation in ultramafic rocks, attested by the occurrence of S and P.

Disciplines :

Earth sciences & physical geography

Author, co-author :

Woguia, Damaris Laure ; Université de Liège - ULiège > GEOLOGY

Fagel, Nathalie ; Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires

Pirard, Eric ; Université de Liège - ULiège > Département ArGEnCo > Géoressources minérales & Imagerie géologique

Gourfi, Abdelali

Ngo bidjeck, L.M.

El Ouahabi, Meriam ; Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires

Language :

English

Title :

Talc schist deposits from central Cameroon: Mineralogical and physico-chemical characterization

Publication date :

June 2021

Journal title :

Journal of African Earth Sciences

ISSN :

1464-343X

eISSN :

1879-1956

Publisher :

Elsevier, United Kingdom

Volume :

178

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 25 March 2021

Statistics

Number of views

147 (17 by ULiège)

Number of downloads

179 (9 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

OpenAlex citations

Bibliography

Abad, I., Jiménez-Millán, J., Molina, J.M., Nieto, F., Vera, J.A., Anomalous reverse zoning of saponite and corrensite caused by contact metamorphism and hydrothermal alteration of marly rocks associated with subvolcanic bodies. Clay Clay Miner. 51:5 (2003), 543–554.
Akpanika, O.I., Ukpong, E.E., Olade, M.A., Mineralogy and geochemical dispersion in tropical residual soils overlying a talc deposit in southwestern Nigeria. Chem. Geol. 63:1–2 (1987), 109–119.
Ali-Bik, M.W., Taman, Z., El Kalioubi, B., Wahab, W.A., Serpentinite-hosted talc–magnesite deposits of Wadi Barramiya area, Eastern Desert, Egypt: characteristics, petrogenesis and evolution. J. Afr. Earth Sci. 64 (2012), 77–89.
Angerer, T., Kerrich, R., Hagemann, S.G., Geochemistry of a komatiitic, boninitic, and tholeiitic basalt association in the Mesoarchean Koolyanobbing greenstone belt, Southern Cross Domain, Yilgarn craton: implications for mantle sources and geodynamic setting of banded iron formation. Precambrian Res. 224 (2013), 110–128.
Biscaye, P.E., Mineralogy and sedimentation of recent deep-sea clay in the Atlantic Ocean and adjacent seas and oceans. Geol. Soc. Am. Bull. 76 (1965), 803–832.
Boski, T., Pessoa, J., Pedro, P., Thorez, J., Dias, J.M.A., Hall, I.R., Factors governing abundance of hydrolyzable amino acids in the sediments from the NW European Continental Margin (47–50° N). Prog. Oceanogr. 42 (1998), 145–164.
Churchman, G.J., Lowe, D.J., Alteration, Formation, and Occurrence of Minerals in Soils. 2012, CRC press, 1–72.
Davison, I., Dos Santos, R.A., Tectonic evolution of the Sergipano fold belt, NE Brazil, during the Brasiliano orogeny. Precambrian Res. 45:4 (1989), 319–342.
Dumas, A., Martin, F., Le Roux, C., Micoud, P., Petit, S., Ferrage, E., Brendlé, J., Grauby, O., Greenhill-Hooper, M., Phyllosilicates synthesis: a way of accessing edges contributions in NMR and FTIR spectroscopies. Example of synthetic talc. Phys. Chem. Miner. 40:4 (2013), 361–373.
Ersoy, B., Dikmen, S., Yildiz, A., Goren, R., Elitolk, O., Mineralogical and physicochemical properties of talc from Ermidag, Afyonkaralisar, Turkey. Turk. J. Earth Sci., 2013, 632–644 10.3906/yer -1112-14.
Evans, B.W., Guggenheim, S., Talc, pyrophyllite, and related minerals. Hydrous Phyllosilicates (Exclusive of Micas) (SW Bailey, Editor), vol. 19, 1988, Reviews in Mineralogy, 225À294.
Fanning, D.S., Keramidas, V.Z., El-Desoky, M.A., In'Minerals in Soil Environments, 2nd Edn.(Eds, 1989, Soil Sci. Soc. Am, Madison, 551–634.
Feng, B., Song, D., Fu, L., Jiang, Z., Yuan, Y., Formation Principles of Calcification Precipitation and Hydrothermal Alteration Minerals in Guide Basin Gringha. 2018, American geophysical union.
Gil, G., Gunia, P., Barnes, J.D., Szymański, M., Jokubauskas, P., Kalbarczyk-Gil, A., Bagiński, B., Origin of talc and Fe-Ti-V mineralization in the Kletno deposit (the Śnieżnik Massif, SW Poland). Minerals, 10(1), 2020, 13.
Grosjean, P., Contribution à la monocuisson rapide de faïence au talc. Etude de pâtes et émaux. Application à l'industrie du carreau de revêtement (suite), 780, 1984, L'Industrie céramique, Paris, 106–114.
Kudrashou, V.Y., Nasr El Din, H.A., Formation damage associated with mineral alteration and formation of swelling clays caused by steam injection in sand packs. SPE Reservoir Eval. Eng. 23 (2020), 326–344, 10.2118/195700-PA 01.
Laplaine, L., Indices minéraux et ressources minérales du Cameroun. Bulletin de la direction des mines et de la géologie, 5, 1969.
Lescano, L., Locati, F., Sfragulla, J., Marfil, S., Bonalumi, A., Maiza, P., Asbestiform and non-asbestiform morphologies in a talc and vermiculite mine from the province of Córdoba (Argentina): a case study. Environ. Earth Sci. 76:18 (2017), 1–20.
Marteau, P., Grès, M., Guillaneau, J.C., Memento roches et minéraux industriels Talc. 1991, BRGM. Service Géologique National.
Metang, V., Nkoumbou, C., Tchakounté, N.J., Njopwouo, D., Application of remote sensing for the mapping of geologicalstructures in mainforest area: acase study at the Matomb – Makak area, Center – south Cameroon. Journal of Geosciences and Geomatics 2:5 (2014), 196–207, 10.12691/jgg-2-5-3.
Moore, D.M., Reynolds, R.C., X-ray Diffraction and the Identification and Analysis of Clay Minerals, vol. 322, 1989, Oxford University press, Oxford.
Narasimha, K.N.P., Ramalingaiah, H., Melka, K., Krishnaveni, K., Prasad, P.S., Krishnaiah, C., Jayappa, K.S., Ganesha, A.V., Vermiculite mineralization associated with ultramafics in Agasthyapura area, Mysore dist., Karnataka state, India-A mineralogical study. Acta Geodyn. Geomater., 3(4), 2006, 19.
Nédélec, A., Macaudière, J., Nzenti, J.P., Barbey, P., Evolution structurale et métamorphique des schistes de Mbalmayo (Cameroun). Implications pour la structure de la zone mobile pan-africaine d'Afrique centrale, au contact du craton du Congo. Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre 303:1 (1986), 75–80.
Ngally S, C.J., Mbey, J.A., Liboum, Thomas, F., Njopwouo, D., Talc as raw material for cementitious products formulation. Journal of Asian ceramic society 2:3 (2014), 263–267.
Nkoumbou, C., Njopwouo, D., Villieras, F., Njoya, A., Yonta, N.C., Ngo Njock, L., Tchoua, F.M., Yvon, J., Talc indices from Boumnyebel (Central Cameroon), physico-chemical characteristics and geochemistry. J. Afr. Earth Sci. 45:1 (2006), 61–73.
Nkoumbou, C., Villieras, F., Njopwouo, D., Yonta, N.C., Barres, O., Pelletier, M., Razafitianamaharavo, A., Yvon, J., Physicochemical properties of talc ore from three deposits of Lamal Pougué area (Yaoundé Pan-African Belt, Cameroon), in relation to industrial uses. Appl. Clay Sci. 41:3–4 (2008), 113–132.
Nkoumbou, C., Villieras, F., Njopwouo, D., Yonta, N.C., Barres, O., Pelletier, M., Razafitianamaharavo, A., Yvon, J., Physicochemical properties of talc ore from Pouth- kélle and Mémel deposits (Central Cameroon). Clay Miner. 43:2 (2008), 317–337.
Nkoumbou, C., Yonta, Ngouné, C., Villieras, F., Njopwouo, D., Yvon, J., Ekodeck, G.E., Tchoua, F.M., Découverte de roches à affinité ophiolitiques dans la chaine panafricaine au Cameroun : talcschistes de Ngoung, Lamal Pouguè et Bibodi Lamal. Compt. Rendus Geosci. 338:16 (2006), 1167–1175.
Ntep, G.P., Ressources minérales du Cameroun- Notice explicative de la carte thématique des ressources minérales du Cameroun sur fond géologique. 2001, Sopecam, Yaoundé, 375.
Nzenti, J.P., Barbey, P., Macaudiere, J., Soba, D., Origin and evolution of late Precambrian high-grade Yaoundé gneisses. Precambrian Res. 38:2 (1988), 91–109.
Owona, S., Schulz, B., Ratschbacher, L., Ondoa, J.M., Ekodeck, G.E., Tchoua, F.M., Affaton, P., Pan-African metamorphic evolution in the southern Yaounde Group (Oubanguide Complex, Cameroon) as revealed by EMP-monazite dating and thermobarometry of garnet metapelites. J. Afr. Earth Sci. 59:1 (2011), 125–139.
Petit, S., Martin, F., Wiewora, A., DE Parseval, P., Decarreau, A., Crystal chemistry of talc: a near infrared (NIR) spectroscopy study. Am. Mineral. 89:2–3 (2004), 319–326.
Pouclet, A., Vidal, M., Doumnang, J.C., Vicat, J.P., Tchameni, R., Neoproterozoic crustal evolution in southern Chad: Pan –African ocean basin closing, arc accretion and late – to – post orogenic granitic intrusion. J. Afr. Earth Sci. 44:4–5 (2006), 543–560.
Prochaska, W., Mogessie, A., Raith, J.G., Formation of the talc deposit of Kibanda (Rwanda) and its relation to the regional metamorphic evolution. J. Afr. Earth Sci. 14:4 (1992), 499–509.
Righi, D., Meunier, A., Origin of clays by rock weathering and soil formation. Origin and mineralogy of clays, 1995, Springer, Berlin, Heidelberg, 43–161.
Sanjurjo, M.J.F., Corti, G., Ugolini, F.C., Chemical and mineralogical changes in a polygenetic soil of Galicia, NW Spain. Catena 43:3 (2001), 251–265.
Schandl, E.S., Gorton, M.P., Sharara, N.A., The origin of major talc deposits in the Eastern Desert of Egypt: relict fragments of a metamorphosed carbonate horizon?. J. Afr. Earth Sci. 34:3–4 (2002), 259–273.
Stendal, H., Toteu, S.F., Frei, R., Penaye, J., Njel, U.O., Bassahak, J., Kankeu, B., Ngako, V., Hell, J.V., Derivation of detrital rutile in the Yaounde region from the Neoproterozoic Pan-African belt in southern Cameroon (Central Africa). Journal of African Earth Sciences 44:4–5 (2006), 443–458.
Tosca, N.J., Macdonald, F.A., Strauss, J.V., Johnston, D.T., Knoll, A.H., Sedimentary talc in Neoproterozoic carbonate successions. Earth Planet Sci. Lett. 306:1–2 (2011), 11–22.
Yonta, N.C., Le contexte géologique des indices de talc de la région de boumnyebel (chaine panafricaine d'Afrique central-Cameroun). PhD thesis in Geology, université de Yaoundé I, Cameroun and université Henri Poincaré, 2010 Nancy, France.
Yonta-Ngoune, C., Nkoumbou, C., Barbey, P., Le Breton, N., Montel, J.M., Villiéras, F., Geological context of the Boumnyebel talcschists (Cameroun): inferences on the Pan-African Belt of Central Africa. Comptes Rendus Géoscience 342:2 (2010), 108–115.