Amenzou, M. and El Mouraouah, Az.E. (1997) Typologie du zircon des granitoides Hercyniens de la Meseta Marocaine: Zonation magmatique et implication geodynamique. Journal of African Earth Sciences, 24 (1-2). pp. 125-139.

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The study of zircon, coupled with petrographic and geochemical studies, of Hercynian granitoïds from Moroccan Meseta allows the distinction of two different areas: (1) The Eastern Meseta with mainly potassic calc-alkaline granitoïds with zircon characterized by very high T̄ index, showing the homogeneity of this area. (2) The Western Meseta, magmatically heterogeneous, shows a NW-SE increasing of zircon T index: the low T̄ index calc-alkaline granites (group 4a) are followed southestwards by the aluminous anatectic granites and the high T index calc-alkaline granites (group 4b-c). Taking into account the zircon typological datas, spatial distribution and granites ages, a SE magmatic zoning is carried out. A geodynamical model within a subduction-collision framework is proposed. © 1997 Elsevier Science Limited.

Item Type: Article
Uncontrolled Keywords: granitoid; Hercynian; tectonic setting; zircon; zonation, Morocco, Meseta
Subjects: Earth and Planetary Sciences
Divisions: SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:47

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