The Late Eocene and Late Miocene fronts of the Atlas Belt in eastern Maghreb: integration in the geodynamic evolution of the Mediterranean Domain

  • Sami KhomsiEmail author
  • Dominique Frizon de Lamotte
  • Mourad Bédir
  • Oussema Echihi
Original Paper
Part of the following topical collections:
  1. Arabian Plate: Lithosphere Dynamics, Sedimentary Basins and Geohazards


Regional cross sections at the scale of the eastern Maghreb based on subsurface and field data allow presenting the structural styles related to the Middle-Late Eocene compressional events. The structural cross sections depict that the Late Eocene front of the Atlas Belt extends far through the Northern Africa plate margin comparatively to the Late Miocene front cropping out in the Eastern Tunisian Atlas. The sections allow proposing a new subsurface front for the Atlas belt encompassing a large part of the Pelagian-Sirt basins. The consequences of this particular configuration are discussed at the scale of the south Tethys margin and replaced in the frame of the geodynamic evolution of the Mediterranean Domain.


North Africa Mediterranean domain Maghreb Atlas Belt Regional cross sections South Atlas front Late Eocene outer front Late Miocene inner front 



We thank the editor Francois Roure from IFP (Paris, France) who made very insightful suggestions and remarks allowing ameliorating the first draft of this work. We thank also our colleague Mansour. Al-Garni from KAU, Faculty of Earth Sciences (Jeddah, Saudi Arabia), for the constructive discussions and suggestions made during the different steps of this work. Anonymous reviewers made pertinent suggestions, they are acknowledged.


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Copyright information

© Saudi Society for Geosciences 2016

Authors and Affiliations

  • Sami Khomsi
    • 1
    Email author
  • Dominique Frizon de Lamotte
    • 2
  • Mourad Bédir
    • 3
  • Oussema Echihi
    • 4
  1. 1.Department of Petroleum Geology, Faculty of Earth SciencesKing Abdulaziz UniversityJeddahSaudi Arabia
  2. 2.Département Géosciences et EnvironnementUniversité de Cergy-PontoiseCergy-PontoiseFrance
  3. 3.Laboratoire Georessources, CERTESolimanTunisia
  4. 4.ETAP, (Entreprise tunisienne des activités pétrolières) Réservoir DepartmentTunisTunisia

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