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Academic literature on the topic 'Atlas Sud Tunisien'
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Journal articles on the topic "Atlas Sud Tunisien"
Boukadi, Nourredine, Jean-Claude Horrenberger, and Michel Ruhland. "La zone de Chabita-Khetatil : secteur-clé de l'articulation entre l'Atlas tunisien méridional et l'Axe Nord-Sud / The Chabita-Khetatil zone : key-sector of the articulation between the southern tunisian Atlas and the North-South Axis." Sciences Géologiques. Bulletin 39, no. 4 (1986): 371–80. http://dx.doi.org/10.3406/sgeol.1986.1737.
Full textMichez, Denis, and Sébastien Patiny. "Biogeography of bees (Hymenoptera, Apoidea) in Sahara and the Arabian deserts." Insect Systematics & Evolution 38, no. 1 (2007): 19–34. http://dx.doi.org/10.1163/187631207788784012.
Full textDissertations / Theses on the topic "Atlas Sud Tunisien"
Said, Aymen. "Tectonique active de l'Atlas Sud Tunisien : approche structurale et morphotectonique." Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1245/.
Full textThis thesis is a contribution to the determination of the crustal geometry, kinematic history, active tectonics and seismic hazard in the Southern Tunisian Atlas (STA). It is based on the acquisition and analysis of field data (geology, geomorphology and paleoseismology), the interpretation of satellite images, the dating of morphological markers offset by active faults, the seismic interpretation and the construction of balanced cross-sections. The STA is characterized by thin skinned and thick skinned thrust structures and a lateral variation of regional deformation (structural geometry and shortening rate) controlled by NW-SE oblique ramps inherited from borders of a Late Triassic-Early Jurassic rift. The first increments of compressive deformation were recorded in the Turonian-Maastrichtian by a pro parte tectonic inversion of NW-SE and EW normal faults. Compression then has spread back from Serravalian-Tortonian into the STA, where it was manifested by fault propagation folds in the post Triassic sedimentary cover. The major Eocene "Atlas event" described in hinterland domains and in the Eastern Tunisia did not deform significantly the STA, which corresponded probably in this period to the backbulge depozone of the Maghrebides. The Gafsa fault is the longest oblique ramp of the STA structure inherited from the rift. It has a complex geometry with a decoupling between the post-Paleozoic sedimentary cover and the basement above thanks to a Triassic evaporite layer. We show that despite a moderate instrumental and historical seismicity, this fault has produced M = 6 earthquakes with a return period of ca. 500 - 5000 years during the Late Quaternary. The latest large event having produced a surface rupture on the fault occurred around 8000 years BP, suggesting a M = 6 earthquake is overdue on the fault. The fault has a minimum reverse component of slip rate of 0. 21 - 0. 34 mm / yr over the past 50 ka and paleoseismological analysis prove that rare M = 7 paleoearthquakes may be suspected. Such strong earthquakes would require the activation of the buried basement fault and its transient coseismic linkage with the overlying listric fault ramping off the décollement layer. A microseismic study is essential to support this hypothesis. The STA folds are worn by ramps which are expressed by the emerging of active thrusts. These thrusts, whose slip rates are comprised between 0. 05 and 0. 15 mm/year, have the potential to generate M = 6 earthquakes. Two significant thrusts by their size, and therefore by the magnitude that they can produce (Chotts and Métlaoui) should be the subject for detailed complementary studies
Gharbi, Mohamed. "Relationship between the southern Atlas foreland and the eastern margin of Tunisia (Chotts-Gulf of Gabes) : tectono-sedimentary, fault kinematics and balanced cross section approaches." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4340/document.
Full textThe structural architecture of the Tunisian foreland consists in a mixed tectonic style with deep-seated basement faults, shallower décollements within sedimentary cover and salt diapirism. Structural geometry and orientation of the pre-existing Triassic-Turonian extensional structures controlled subsequent contractional deformation within the sedimentary cover. The rifting of the margin started in the late Permian–Triassic and continued up to the Turonian. From the inversion of the successive compressions, the development of ENE-trending thrust-related anticlines such as the Orbata and Chemsi structures are controlled by the reactivation of the inherited Mesozoic faults. Geologic data from this region indicate that the positive tectonic inversion occurred probably during Late Cretaceous period. The Cenozoic tectonic compressions in the southern Atlassic domain occurred during three periods: Late Eocene, Late Miocene and Plio-Quaternary. The Fault kinematic analysis reveals a temporal change in states of stress that occurred during the Late Cenozoic. A paleostress (Miocene-Pliocene) state is characterized by a regional compressional tectonic regime with a mean N134±09°E trending compressional axis (σ1). A modern (Quaternary to present-day) state of stress also corresponds to compressional tectonic regime with a regionally mean N05±10°E trending horizontal σ1. This study underlines the predominant role of inherited basement structures acquired during the evolution of the southern Tethyan margin, and their influence on the geometry of the Atlassic fold-and-thrust belt. At the southern Atlas of Tunisia our restoration shows a surface shortening of ~8.1 km (~7.3%)
Books on the topic "Atlas Sud Tunisien"
Renaud, Patrick-Charles. Combats sahariens, 1955-1962: Sahara algérien-Atlas saharien, Mauritanie-Sahara espagnol, Sud tunisien. Paris: J. Grancher, 1993.
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