Abstract
Neotectonics is revealed by numerous approaches such as a new re-interpretation and homogeneisation of the geological data set, earthquakes, field work studies and detailed numerical geomorphic analyses of the topography. Tunisia appear to be a case example for this kind of studies as it is affected by both active tectonics highlighted by few minor earthquakes and present numerous associated faults and folds. We develop first herein basic key geomorphic processing deduced from the bibliography and new indicators developed throughout this study, processed numerically through home made geodatabase, that lead us to propose a new structural scheme of extrusion revisiting the Tunisian neotectonic setting (Deffontaines et al. 2008, Postdam GFZ). We then update the Tunisian geological mapping by improving it with the high resolution existing Digital Terrain Model and remote sensing images. Fieldwork studies lead us to better solve mapping anomalies. At least we used numerous published existing seismic profiles that validate our model. We then propose herein an eastern extrusion model of Central Tunisia due to the northward migration of African plate toward Eurasia since mid cretaceous due to the Tethys inversion.
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References
Angelier J, Chang TY, Hu JC, Chang CP, Siame L, Lee JC, Deffontaines B, Chu HT, Lu CY (2009) Does extrusion occur at both tips of the Taiwan collision belt? Insights from active deformation studies in the Ilan Plain and Pingtung Plain regions. Tectonophysics 466:356–376
Bedir M (1995) Mecanisme des bassins associes aux couloirs de coulissements de la marge atlasique de la Tunisie: simo-stratigraphie, seismo-tectonique et implications petrolieres. These de doctorat en Sciences geologiques. These de doctorat Doctorat es-Sciences, Universite Tunis II, 412 p
Bedir M, Ben Youssef M, Boukadi N, Slimane F, Zargouni F (1992) Les evenements sequentiels meso-cenozoiques associes au systeme de coulissements de l’Atlas meridional de Gafsa. 3eme Journee de l’Exploration Petroliere (ETAP). Tunis
Ben Ayed N (1986) Evolution tectonique de l’avant pays de la chaine alpine de Tunisie du debut du Mesozoique a l’actuel. These Doctorat d’Etat, Universite Paris-Sud, Centre d’Orsay, p 328
Ben Hassen M (2012) Analyse de la deformation recente dans l’Atlas meridional de la Tunisie par geomorphometrie et Interferometrie Radar (DInSAR). These de doctorat en Sciences de l’Information Geographique, Universite: Paris-Est Marne-la-Vallee/ France; et en geologie, Universite: Tunis El Manar/Tunisie. 341p
Ben Hassen M, Deffontaines B, Turki MM (2012) Contribution de la Geomatique (SIG et teledetection) pour la mise a jour de la couverture geologique a l’echelle du 1/ 100 000eme du sud de la Tunisie, Photo-Interpretation European Journal of Applied Remote Sensing, N° 2012/3, 31 p
Bodin S, Petitpierre L, Wood J, Elkanouni I, Redfern J (2010) Timing of early to mid-cretaceous tectonic phases along North Africa: New insights from the Jeffara escarpment (Libya—Tunisia). J Afr Earth Sci 58:489–506
Bouaziz S (1986) La deformation dans la plateforme du Sud tunisien (Dahar et Jeffara): Approche multiscalaire et pluridisciplinaire. These 3ieme cycle, Universite de Tunis, 180 p
Bouaziz S (1995) Etude de la tectonique cassante dans la plateforme et l’Atlas sahariens (Tunisie meridionale): Evolution des paleochamps de contraintes et implications geodynamiques. These de Doctorat, Universite de Tunis II, p 486
Bouaziz S, Barrier E, Turki MM, Tricart P (1999) La tectonique permo-mesozoique (ante-vraconienne) dans la marge sud tethysienne en Tunisie meridionale. Bull Soc Geol France 45–56
Bouaziz S, Barrier E, Soussi M, Turki MM, Zouari H (2002) Tectonic evolution of the northern african margin in Tunisia from paleostress data and sedimentary record. Tectonophysics 357:227–253
Boukadi N (1994) Structuration de l’atlas de Tunisie: signification geometrique et cinematique des nreuds et des zones d’interferences structurales au contact de grands couloirs tectoniques. These de doctorat en Sciences Geologiques, Univ. Tunis II, Faculte des Sciences de Tunis, 249 p
Deffontaines B (1990) Developpement d’une methodologie morphoneotectonique et morphostructurale; analyse des surfaces enveloppes, du reseau hydrographique et des modeles numeriques de terrains; Application au Nord-Est de la France. These, Univ. Paris VI, France, 230 p
Deffontaines B (2000) Formes et deformations de la surface terrestre: Approches morphometriques et applications, Habilitation a Diriger des Recherches (HDR), Universite Pierre et Marie Curie, P6, p. 60 + Annexes
Deffontaines B, Chorowicz J (1991) Principle of drainage basin analysis from multisource data, Application to the structural analysis of the Zaire Basin. Tectonophysics 194:237–263
Deffontaines B, Slama T, Ben Hassen M, Rebai N, Turki MM (2008) Tunisia structural extrusion revealed by numerical geomorphometry. Geol Soc Am spec workshop, Potsdam, June 2008
Gabtni H, Jallouli C, Mickus KL, Zouari H, Turki MM (2009) Deep structure and crustal configuration of the Jeffara basin (Southern Tunisia) based on regional gravity, seismic reflection and borehole data: How to explain a gravity maximum within a large sedimentary basin? J Geodyn 47:142–152
Gabtni H, Jallouli C, Mickus KL, Turki MM (2011) Geodynamics of the Southern Tethysian Margin in Tunisia and Maghrebian domain: new constraints from integrated geophysical study. Arab J Geosci 6:271–286
Hfaiedh M, Attafi K, Arsovski M, Jancevski J, Domurdzanov N, Turki MM (1991) Carte sismotectonique de la Tunisie. Editee par l’ Institut National de la Meteorologie
Hlaiem A (1999) Halokinesis and structural evolution of the major features in eastern and southern Tunisian Atlas. Tectonophysics 306(1):79–95
Molnar P, Tapponnier P (1978) Active Tectonics of Tibet. J Geophys Res 83:5361–5375
Perthuisot JP (1977) Le Lambeau de Tlet et la structure neotectonique de l’ile de Jerba (Tunisie). C. R. Acad Sci, Paris
Perthuisot JP (1985) Cartes geologiques au 1/50.000 et notices explicatives des feuilles de Houmet Essouk, Midoun, Jorf, Sidi Chamakh, Publications, Serv. Geol. Nat. Tunisie
Rabia MC (1998) Systeme d’Informations Geo-scientifique et Teledetection multi-capteurs: Application a une etude mult-themes de la Jeffara orientale. These de Docotrat, Universite Tunis II, p. 320
Ratschbacher L, Merle O (1991) Lateral extrusion in the Eastern Alps, part 2: structural analysis. Tectonics 2:245–256
Tapponnier P, Peltzer A, Le Dain Y, Armijo R, Cobbold P (1983) Propagation extrusion tectonics in Asia: new insights from simple exper-iments with plasticine. Geology 10:611–616
Touati MA, Rodgers MR (1998) Tectono-stratigraphic history of the Southern Gulf of Gabes and the hydrocarbon habitats. Proceedings of the 6th Tunisian petroleum exploration production conference, Tunis, Mai, pp 343–370
Zouari H (1995) Evolution geodynamique de l’Atlas centro-meridional de la Tunisie: stratigraphie, analyse geometrique, cinematique et tectono-sedimentaire. These de doctorat d’etat en sciences geologiques, 277 p
Zouari H, Turki MM, Delteil J (1990) Nouvelles donnees sur revolution tectonique de la chaine de Gafsa. Bull Soc Geol Fr 8(4):621–629
Acknowledgments
Authors would like to thank Ghedhoui’s family, Ben Hassen’s family, and Deffontaines’s family who financed the major part of this research.
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Deffontaines, B., Hassen, M.B., Ghedhoui, R. (2015). Tunisia: A Mature Case Example of Structural Extrusion. In: Lollino, G., et al. Engineering Geology for Society and Territory - Volume 6. Springer, Cham. https://doi.org/10.1007/978-3-319-09060-3_25
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DOI: https://doi.org/10.1007/978-3-319-09060-3_25
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