ISSN (Print): 2328-3777, ISSN (Online): 2328-3785, ISSN (CD-ROM): 2328-3793 American International Journal of Research in Formal, Applied & Natural Sciences AIJRFANS 14-362; © 2014, AIJRFANS All Rights Reserved Page 81 Available online at http://www.iasir.net AIJRFANS is a refereed, indexed, peer-reviewed, multidisciplinary and open access journal published by International Association of Scientific Innovation and Research (IASIR), USA (An Association Unifying the Sciences, Engineering, and Applied Research) Lithostratigraphy and evidence of an extensive tectonic of Lower Permian age in the continental deposits of M’tal (Western Rehamna, Morocco) Hafid Saber 1 , Abdelkbir Hminna 1 , Abdellatif Jouhari 1 , Aziz Rmich 1 1 Chouaïb Doukkali University, Faculty of Sciences, Geology department, P.C. 20, 24000, El Jadida, Morocco. I. Introduction The Permian deposits are known in Morrocan Meseta and High Atlas. Those basins was studied in detail in the central Morocco ([1], [2], [3], [4], [5]), in the eastern and southern Rehamna ([1], [6], [7]) and in the High Atlas ([8], [9], [10]). The present study shows for the first time, the evidence of an extensive tectonic of probably lower Permian age in the basin of M’tal (Western Rehamna) ( Fig. 1). Indeed, through the existing work, the late-hercynian geological history is slightly known between the westphalian and the deposit of the first terms of Permo-triassic in this region. During this period, multiple sedimentary and tectonic events have occurred. We will study particularly those events. This analysis is followed by a comparison with the similar events described in the other late Palaeozoic basins of Morocco. Agadir Marrakech Rabat RIF ATLAS MESETA ANTI-ATLAS 100 Km N 34° 34° 8°30' ° ° ° Hercynian p lutonic roc ks Paleozoic Coastal block Atlasic southern fa ult zone M’tal basin Fig. 1 : Location of the M’tal basin in Moroccan Meseta. II. Location and tectonic features The sedimentary basin of M’tal outcrops within a submeridian gutter of approximately 8 km in length and 3 km in width. It is located on the western extremity of the Palaeozoic Hercynian massif of Rehamna, approximately 100 km south from of El Jadida, on the road to Marrakech, near Jemaâ M’tal locality ( Fig. 1). This basin is Abstract: In this study, a synthetic lithostratigraphic profile was established in the Permian basin of M’tal . It is made of a detrital series of approximately 450 m. Two formations could be identified: A basal conglomeratic with abundant matrix (Ouled Mira formation) overlayed by a sandstone-silts formation (Bir Enhass formation). A systematic analysis of the synsedimentary fracturing reveals that this fault network and the opening of the M’tal basin was activated during East-Western extension. Keywords: Lower Permian, Late-Hercynian, Tectonic, Geodynamic, Western Rehamna, Morocco.