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.
Full text not available from this repository.Abstract
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 |
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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 |
URI: | http://eprints.umi.ac.ma/id/eprint/2964 |
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