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Allou, A.B., Lu, H.Z, Guha, J., Naho, J., Carignan, J., Pothin, K. and Yobou, R. (2005) Une Correlation Genetique entre les Roches Granitiques, et les Depots Eluvionnaires, Colluvionnaires et Alluvionnaires de Columbo-Tantalite d’Issia, Centre-Ouest de la Cote d’Ivoire. Exploration and Mining Geology, 14, 61-77.
https://doi.org/10.2113/gsemg.14.1-4.61

has been cited by the following article:

• TITLE: Geochemistry of Micas from Issia Granite Complexe: A Marker of Geodynamic Evolution

  AUTHORS: Koffi Joseph Brou, Alain Nicaise Kouamelan, Koffi Raoul Teha

  KEYWORDS: G3 Granites, Peraluminous Granites, Rare Metals, Fractional Crystallization

  JOURNAL NAME: Open Journal of Geology, Vol.14 No.8, August 26, 2024

  ABSTRACT: The granites and pegmatites located in the southern part of the Issia region, near the columbo-tantaliferous placers, are characterized by the presence of rare metals such as beryl, lithium and Nb-Ta oxides. They mainly consist of micas, quartz, plagioclase and potassium feldspar. The work carried out on the micas of these granites and pegmatites (EPMA analyses) has provided new geochemical data contributing to the understanding of the magmatic evolution of the Issia granite complex. Mineralogically, the most evolved G3 granites are characterized by their abundance of muscovite compared to biotite and the presence of pegmatite veins. Geochemically, the muscovites of the G1 and G2 granites are more ferriferous than those of the G3 granites, however, the latter display higher Na contents than the G2 and G3. The muscovites of the granites show an evolution from the pure muscovite series to the zinnwaldite series (micas of the pegmatites) which are lithium-bearing micas. The mineralogical and chemical data of the micas show that they are S-type peraluminous granites and demonstrate the formation of granites and pegmatites through fractional crystallization of the same parental magma.