2006
DOI: 10.1016/j.crte.2005.11.001
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Mise en évidence en subsurface d'événements compressifs Éocène moyen–supérieur en Tunisie orientale (Sahel) : généralité de la phase atlasique en Afrique du Nord

Abstract: Rédigé à l'invitation du Comité de lecture RésuméDes événements compressifs sont bien enregistrés par les séries paléogènes de subsurface de l'avant-pays de la Tunisie orientale. Ils s'expriment par des plis, des structures d'inversion, des duplex ainsi que des discordances angulaires détectables par la sismique reflexion. Les événements compressifs débutent au Campanien-Maastrichtien, s'amplifient au Paléocène pour atteindre leur paroxysme au Lutétien-Priabonien, exprimé par la discordance angulaire en toplap… Show more

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Cited by 99 publications
(83 citation statements)
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“…However, recent work has revealed the existence of an early tectonic event known as the "Atlasic phase" of Middle Eocene age (Khomsi et al, 2006;Frizon de Lamotte et al, 2006). These authors base their argument on the presence of angular unconformities located on the flanks of anticlines observed on seismic sections (Fig.…”
Section: Structural Inversion and Its Consequences 41 Compressive Phmentioning
confidence: 99%
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“…However, recent work has revealed the existence of an early tectonic event known as the "Atlasic phase" of Middle Eocene age (Khomsi et al, 2006;Frizon de Lamotte et al, 2006). These authors base their argument on the presence of angular unconformities located on the flanks of anticlines observed on seismic sections (Fig.…”
Section: Structural Inversion and Its Consequences 41 Compressive Phmentioning
confidence: 99%
“…10. Interpreted seismic line L1, showing the angular unconformities D1 to D5, the compressional Eocene tectonics and the extensional tectonic affecting the Oligocene (Khomsi et al, 2006). CM: Late Cretaceous, Pa: Palaeocene, Yp: Ypresian However, we should stress that these discordances are always local and/ or linear.…”
Section: Structural Inversion and Its Consequences 41 Compressive Phmentioning
confidence: 99%
“…Added to field investigations and data acquisition, the work was mainly based on a cross reinterpretation of data of some previous works such as seismic sections carried out in the Sahel [1][2][3][4]22] and a geodynamic model of the convergence and the shift from subduction to collision between African and Eurasian plates from the Miocene to Quaternary discussed by Chihi and Philip [12].…”
Section: Methodsmentioning
confidence: 99%
“…Though structures of the previous tectonic activities in the Sahel area are covered by a thick Plio-Quaternary series, geological and geophysical studies (e.g., [1][2][3][4][5][6][7]) gave a lot of data on the deep tectonic structures and the salt tectonics that was enhanced by the intrusion of the Triassic domes [3,4]. The geodynamic inheritance in the subsurface of this region is still until now controlling the geology of its surface.…”
Section: Introductionmentioning
confidence: 99%
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