The petrogeochemical analysis of the granitoids of Mount Fouimba and Mount Goma in the Seguela region (central-western C?te d’Ivoire) is the subject of this study. This analysis combines remote sensing, geophysics, petrography and geochemistry, in order to determine the major characteristics of the granitoids in the study area, and above all to participate in the detailed mapping of all the Ivorian terrains. The granitoids encountered in this region are essentially two-mica granites, granodiorites and porphyry basalts. Chemical analysis indicates that these granitoids are of the ferrous and magnesian type with peraluminous to weakly metaluminous characteristics. They originate from the mantle and were emplaced in an active continental margin context.
References
[1]
Bessoles B. (1977) Geology of Africa, 1. West African Craton. Mém. B.R.G.M., Paris, No. 88, 404.
[2]
Papon, A. (1973) Geology and Mineralization of South-West Cote d’Ivoire. Mémoire du BRGM, Vol. 80, 284.
[3]
Caby, R., Delor, C. and Agoh, O. (2000) Lithology, Structure and Metamorphism of the Birimian Formations in the Odienne Area [Ivory Coast]: The Major Role Played by Plutonic Diapirism and Strike-Slip Faulting at the Border of the Man Craton. Journal of African Earth Sciences, 30, 351-374.
https://doi.org/10.1016/S0899-5362(00)00024-5
[4]
Camil, J. (1995) Significant Influence of the Birimian on the Archean Domain of the Ivory Coast. Séance Spéc. Soc. Géol. Fr. Session, Geodynamique du Paléoprotérozoique. Orléans, 17 Nov. 1995, 21.
[5]
Kouamelan, A.N. (1996) Geochronology and Geochemistry of the Archean and Proterozoic Formations of the Man Ridge in Ivory Coast, Implication for the Archean-Proterozoic Transition. Mém. Geosciences Rennes, 73, 289.
https://tel.archives-ouvertes.fr/tel-00653760
[6]
Middlemost, E.A.K. (1994) Naming Materials in the Magma/Igneous Rock System. Earth Science Reviews, 37, 215-244. https://doi.org/10.1016/0012-8252(94)90029-9
[7]
Peccerillo, A. and Taylor, S.R. (1976) Geochemistry of Eocene Calc-Alkaline Volcanic Rocks from the Kastamonu Area, Northern Turkey. Contributions to Mineralogy and Petrology, 58, 63-81. https://doi.org/10.1007/BF00384745
[8]
Shand, S.J. (1922) The Problem of the Alkaline Rocks. Publications of the Geological Society of South Africa, 25, 19-33.
[9]
Sun, S.S. and McDonough, W. (1989) Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes. Geological Society, London, Special Publications, 42, 313-345.
https://doi.org/10.1144/GSL.SP.1989.042.01.19
[10]
Pearce, J.A., Harris, N.B.W. and Tindle, A.J. (1984) Trace Element Discrimination Diagrams for the Tectonic Interpretation of Granitic Rocks. Journal of Petrology, 25, 956-983. https://doi.org/10.1093/petrology/25.4.956
[11]
Camil, J. (1984) Petrography, Chronology of the Archean Granulite Assemblages and Associated Formations of the Man Region (Ivory Coast). Thèse de Doctorat, Univ. Abidjan, Abidjan, 306.
[12]
Kouadio, F.J. (2017) étude pétrostructurale des formations géologiques du sudouest de la cote d’ivoire (secteur blieron-grand bereby): Apport de la géochimie et du couple déformation métamorphisme. Doctorate, Univ. Félix Houphouet-Boigny, Boigny, 221. https://www.scirp.org/journal/paperinformation.aspx?paperid=99950
[13]
Allialy, M.E. (2006) Pétrologie et géochimie des kimberlites diamantifères de Séguéla (Centre-Ouest de la Cote d’Ivoire). Thèse de Doctorat, Université de Cocody, Abidjan.
[14]
Gnoleba, S.P.D. (2021) Geological Mapping of the Precambrian Formations in the Séguéla Region (North-Western Ivory Coast) from Airborne Magnetometry, Petrophysics and Geochemistry Data. Doctoral Thesis, University of Cocody, Abidjan, 159.
[15]
Adingra, M.P.K. (2020) Petrostructural and Geochemical Characterization of the Birimian Formations of the South-Eastern Part of the Comoé Basin (North of Alépé-Southeast of Ivory Coast): Implication on the Geodynamic Evolution. PhD, Univ. Félix Houphouet Boigny, Boigny, 220.
http://publication.lecames.org/index.php/svt/article/download/1450/827
[16]
Vidal, M., Gumiaux, C., Cagnard, F., Pouclet, A., Ouattara, G. and Pichon, M. (2009) Evolution of a Paleoproterozoic Weak Type Orogeny in the West African Craton (Ivory Coast). Tectonophysics, 477, 145-159.
https://hal-insu.archives-ouvertes.fr/insu-00360070
https://doi.org/10.1016/j.tecto.2009.02.010
[17]
Ahimon, O. (1990) Explanatory Note for the Geological Map of Cote d’Ivoire at 1/200000, Daloa Sheet: Mém. Dir. Géol, Abidjan, Cote d’Ivoire, No. 1, 28.
[18]
Ouattara, Z. (2015) Lithostratigraphic, Structural, Geochemical and Metallogenic Characteristics of the Bonikro Gold Deposit, Birimian Fêttèkro Sillon, South-Central Cote d’Ivoire. PhD, Université Félix Houphouet-Boigny, Boigny, 275.
http://publication.lecames.org/index.php/svt/article/viewFile/1277/762
[19]
Doumbia, S., Pouclet, A., Kouamelan, A., Peucat, J.J., Vidal, M. and Delor, C. (1998) Petrogenesis of Juvenile-Type Birimian (Paleoproterozoic) Granitoids in Central Cote d’Ivoire, West Africa: Geochemistry and Geochronology. Precambrian Research, 87, 33-63. https://doi.org/10.1016/S0301-9268(97)00201-5
[20]
Hirdes, W., Davis, D.W., Luctke, G. and Konan, G. (1996) Two Generations of Bi-rimian (Paleoproterozoic) Volcanic Belts in Northeastern Cote d’Ivoire (West Africa): Consequences for the Birimian Controversy. Precamb. Res., 173-191.
[21]
Gasquet, D., Barbey, P., Adou, M. and Paquette, J.L. (2003) Structure Sr-Nd Isotope Geochemistry and Zircon U-Pb Geochronology of the Granitoids of the Dabakala Area (Cote d’Ivoire): Evidence for a 2.3 Ga Crustal Growth Event in the Palaeoproterozoic of West Africa? Precambrian Research, 127, 329-354.
https://doi.org/10.1016/S0301-9268(03)00209-2
[22]
Gnanzou, A. (2014) Study of the Volcano-Sedimentary Series of the Dabakala Region (North-East Ivory Coast): Genesis and Magmatic Evolution. Contribution to the Knowledge of the Bobosso Gold Mineralization in the Haute-Comoé Series. PhD, Univ. Paris-Sud Orsay, Paris and Univ. Félix Houphouet-Boigny, Boigny, 303.
https://theses.hal.science/tel-01127955/document
[23]
Boya, T., Gnanzou, A., Dago, A., Silue, N., Teha, K. and Kouamelan, A. (2022) Comparative Petro-Géochimie des Granitoides Intrusifs du Bassin de la Comoé et des Granitoides du Batholite de Ferkessédougou (Cote d’Ivoire, Bouclier Man-Léo): Implications géodynamiques pour le Craton Ouest Africain (WAC). Journal des géosciences et de la protection de l’environnement, 10, 98-118.
https://doi.org/10.4236/gep.2022.107007
