Néotectonique affectant les dépôts marins tyrrhéniens du littoral sud-est tunisien : implications pour les variations du niveau marin |
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| Authors: | Samir Bouaziz Younes Jedoui Éric Barrier Jacques Angelier |
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| Institution: | 1. Laboratoire 3E (AD-10-02), École nationale d''ingénieurs de Sfax, université de Sfax, BP W, 3038 Sfax, Tunisie;2. Laboratoire de tectonique, bo??te 129, université Pierre-et-Marie-Curie, 75252 Paris cedex 05, France |
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| Abstract: | Pleistocene marine deposits of so-called Tyrrhenian age in southeastern Tunisia include two lithostratigraphic units of Last Interglacial (marine isotopic substage 5e). The lower unit culminates at about +3 m above the sea level; the upper unit with Strombus bubonius culminates at +5 m. Brittle deformations affected the upper unit. The analysis of fault-slip data sets reveals a post-Tyrrhenian N020°E trending compression, consistent with joint patterns. This event induced limited vertical movements, showing that at the northeastern edge of the Saharan Platform, the coastal area of the southern Tunisia remained relatively stable since at least the Last Interglacial. |
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| Keywords: | Tunisie Sédiments littoraux Interglaciaire Niveau marin Néotectonique Régime de contraintes Tunisia Coastal deposits Interglacial Sea level Neotectonics Stress regime |
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