Berkhli, M. and Vachard, D. (2002) The Carboniferous formations of Migoumess, Tirhela and Idmarrach (central Morocco): Lithology, biostratigraphy and geodynamic consequences Le Carbonifère du Maroc central: Les formations de Migoumess, de Tirhela et d’Idmarrach. Lithologie, biostratigraphie et conséquences géodynamiques. Comptes Rendus Geoscience, 334 (1). pp. 67-72.

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New biostratigraphical data based on foraminifers, algae and pseudoalgae indicate that the limestone pebbles of the channelized polygenic conglomerates of the Migoumess formation contain Late Visean (V3bγ-V3c) assemblages. That confirms the Westphalian age attributed to this formation by Hollard Zdt. Geol. Ges. 129 (1978) 495-512. The Tournaisian age assigned to it by palynology C.R. Acad. Sci. Paris, série II 310 (1990) 1573-1576 cannot be retained. The Tirhela formation, Late Visean and Serpukhovian (El) in age, is coeval with the Akerchi formation Berkhli, thèse d’état, 1999; Berkhli et al., J. Afr. Earth Sci. (accepté). The Idmarrach formation, mapped as a thrust sheet C.R. Acad. Sci. Paris, série II 310 (1990) 1573-1576, is dated as Serpukhovian (E1) and its thrusting is consequently post-Serpukhovian. Palaeogeographic and geodynamic consequences are listed. © 2002 Académie des sciences/éditions scientifiques et médicales Elsevier SAS.

Item Type: Article
Uncontrolled Keywords: biostratigraphy; Carboniferous; geodynamics; lithofacies, Idmarrach; Migoumess; Morocco; Tirhela
Subjects: Earth and Planetary Sciences
Divisions: SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:46

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