Tectonosedimentary framework of Upper Cretaceous –Neogene series in the Gulf of Tunis inferred from subsurface data: implications for petroleum exploration

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The objective and the main contribution of this issue are dedicated to using subsurface data to delineate a basin beneath the Gulf of Tunis and its neighbouring areas, and to investigate the potential of this area in terms of hydrocarbon resources. Available well data provided information about the subsurface geology beneath the Gulf of Tunis. 2D seismic data allowed delineation of the basin shape, strata geometries, and some potential promising subsurface structures in terms of hydrocarbon accumulation. Together with lithostratigraphic data obtained from drilled wells, seismic data permitted the construction of isochron and isobath maps of Upper Cretaceous-Neogene strata. Structural and lithostratigraphic interpretations indicate that the area is tectonically complex, and they highlight the tectonic control of strata deposition during the Cretaceous and Neogene. Tectonic activity related to the geodynamic evolution of the northern African margin appears to have been responsible for several thickness and facies variations, and to have played a significant role in the establishment and evolution of petroleum systems in northeastern Tunisia. As for petroleum systems in the basin, the Cretaceous series of the Bahloul, Mouelha and Fahdene formations are acknowledged to be the main source rocks. In addition, potential reservoirs (Fractured Abiod and Bou Dabbous carbonated formations) sealed by shaly and marly formations (Haria and Souar formations respectively) show favourable geometries of trap structures (anticlines, tilted blocks, unconformities, etc.) which make this area adequate for hydrocarbon accumulations.

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  • Abrajevitch A.V. Ali J.R. Aitchison J.C. Davis A.M. Liu J. & Ziabrev S.V. 2005: Neotethys and the India-Asia collision: Insights from a palaeomagnetic study of the Dazhuqu ophiolite southern Tibet. Earth Planet. Sci. Lett. 233 1 87-102.

  • Accaino F. Catalano R. Di Marzo L. Giustiniani M. Tinivella U. Nicolich R. Sulli A. Valenti V. & Manetti P. 2011: A crustal seismic profile across Sicily. Tectonophysics 508 52-61.

  • Bedir M. Tlig S. Bobier C. & Aissaoui N. 1996: Sequence stratigraphy basin dynamics and petroleum geology of the Miocene from eastern Tunisia. AAPG bulletin 80 1 63-80.

  • Ben Ayed N. 1993: Evolution tectonique de l’avant-pays de la chaîne alpine de Tunisie du début du Mésozoïque à l’Actuel. Ann. Mines Geol. Editions du Service géologique de Tunisie 32 1-286.

  • Ben Ismail-Lattrache K. & Bobier C. 1984: Sur l’évolution des paléoenvironnements marins paléogènes des bordures occidentales du détroit Siculo-Tunisien et leurs rapports avec les fluctuations du paléo-océan mondial. Mar. Geol. 55 195-217.

  • Biely A. Rakús M. Robinson P. & Salaj J. 1972: Essai de corrélation des formations miocènes au sud de la Dorsale tunisienne. Not. Serv. Géol. Tunisie Tunis 38 73-93.

  • Bishop W.F. 1988: Petroleum geology of East-Central Tunisia. American Association of Petroleum Geologists Bulletin 72 9 1033-1058.

  • Boccaletti M. Cello G. & Tortorici L. 1990: First order kinematic elements in Tunisia and the Pelagian block. Tectonophysics 176 215-228.

  • Bonnefous J. & Bismuth H. 1982: The shelf carbonate facies of the Middle and Upper Eocene offshore northeastern Tunisia and in the Pelagian sea: Paleogeographical consequences and micropaleontological analysis. Bull. Centres Rech. Explor.-Prod. Elf Aquitaine 6 2 337-403

  • Brunet M-F. & Cloetingh S. 2003: Integrated Peri-tethyan Basins studies (Peri-Tethys Programme). Sediment. Geol. 156 1-10.

  • Burollet P.F. 1951: Etude géologique des bassins mio-pliocenes du Nord-Est de la Tunisie (région entre Mateur Ferryville et Porto-Farina). Annales des Mines et de la géologie 7 Tunisia 1-91.

  • Burollet P.F. 1956: Contribution à l’étude stratigraphique de la Tunisie centrale. Annales des Mines et de la géologie 18 Tunisia 1-345.

  • Catalano R. lnfuso S. & Sulli A. 1995: Tectonic history of the submerged Maghrebian Chain from the Southern Tyrrhenian Sea to the Pelagian Foreland. Terra Nova 7179-188.

  • Catalano S. Torrisi S. Tortorici G. & Romagnoli G. 2011: Active folding along a rift-flank: the Catania region case history (SE Sicily). J. Geodyn. 51 1 53-63.

  • Craig A.N. 2009: Petroleum Systems and Prospectivity of the Gulf of Hammamet Tunisia. 8th PESGB/HGS Conference on African E & P 9-10 September 2009. Queen Elizabeth II Conference Centre London 1-14.

  • Dart C.J. Bosence D.W.J. & McClay K.R. 1993: Stratigraphy and structure of the Maltese Islands. J. Geol. Soc. London 150 1153-1166.

  • Dhahri F. & Boukadi N. 2010: The evolution of pre-existing structures during the tectonic inversion process of the Atlas chain of Tunisia. J. African Earth Scie. 56 139-149.

  • Dhahri F. Tanfous D. Gabtni H. & Boukadi N. 2015: Structural and geodynamic study in central Tunisia using field and geophysical data: new structural interpretation of the N-S axis and associated Atlassic structures. Int. J. Earth. Sci. (Geol Rundsch) DOI 10.1007/s00531-015-1159-1.

  • El Euchi H. Saidi M. Fourati L. Ghenima R. Friha J. Hamouda F. & Messaoudi F. 2002: Northern Tunisia thrust belt: Deformation models and hydrocarbon systems. Memoires ETAP Tunisia 19 143-189.

  • Fairhead J.D. 1988: Mesozoic plate tectonic reconstructions of the central South Atlantic Ocean: the role of the West and Central African rift system. Tectonophysics 155 1-4 181-191.

  • Gabtni H. Zenatti B.C. Jallouli C. Mickus K.L. & Bedir M. 2011: The crustal structure of the Sahel Basin (eastern Tunisia) determined from gravity and geothermal gradients: implications for petroleum exploration. Arabian J. Geosci. 4 3-4 507-516.

  • Guiraud R. 1998: Mesozoic rifting and basin inversion along the northern African Tethyan margin: an overview. In: MacGregor D.S. MoodyR.T.J. & Clark-Lowes D.D. (Eds.): Petroleum Geology of North Africa. Geol. Soc. London Spec. Publ. 133 217-229.

  • Guiraud R. & Maurin J.C. 1992: Early Cretaceous rifts of Western and Central Africa: an overview. Tectonophysics 213 1-2 153-168.

  • Guiraud R. Bellion Y. Benkhelil J. & Moreau C. 1987: Post-Hercynian tectonics in Northern and Western Africa. Geol. J. 22 S2 433-466.

  • Guiraud R. Bosworth W. Thierry J. & Delplanque A. 2005: Phanerozoic geological evolution of Northern and Central Africa: an overview. J. African Earth Sci. 43 1 83-143.

  • Haq B.U. Hardenbol J. & Vail P.R. 1987: Chronology of fluctuating sea levels since the Triassic (250 million years ago to present). Science 235 1156-1167.

  • Laville E. Pique A. Amrhar M. & Charroud M. 2004: A restatement of the Mesozoic Atlasic rifting (Morocco). J. African Earth Sci. 38 2 145-153.

  • Laridhi-Ouazaa N. 1994: Etude minéralogique et géochimique des épisodes magmatiques mésozoïques et miocènes de la Tunisie. Thesis Es-Sciences. Université de Tunis II 1-426.

  • Laaridhi-Ouazza N. & Bédir M. 2005: Les migrations tectono-magmatiques du Trias au Néogène sur la marge orientale de la Tunisie. Africa Geosci. Rev 2004 11 3 179-196.

  • Lentini F. Catalano S. & Carbone S. 1996: The External Thrust System in southern Italy: a target for petroleum exploration. Petrol. Geosci. l. 2 333-342.

  • Majithia M. 1997: Main Types of Geological Maps: Purpose Use and Preparation. Editions TECHNIP 1-348.

  • Lüning S. Kolonic S. Belhadj E. M. Belhadj Z. Cota L. Barić G. & Wagner T. 2004: Integrated depositional model for the Cenomanian- Turonian organic-rich strata in North Africa. Earth-Sci. Rev. 64 1 51-117.

  • Macgregor D.S. 1996: The hydrocarbon systems of North Africa. Mar. Petrol. Geol. 13 3 329-340.

  • Masrouhi A. Bellier O. & Koyi H. 2014: Geometry and structural evolution of Lorbeus diapir northwestern Tunisia: polyphase diapirism of the North African inverted passive margin. Int. J. Earth Sci. 103 3 881-900.

  • Mattoussi-Kort H. El Asmi A.M. Laaridhi-Ouazaa N. Gasquet D. & Saidi M. 2015: Hydrothermal history in the eastern margin of Tunisia: inferred magmatic rocks alterations new paragenesis and associated gas occurrences. Arab. J. Geosci. 8 10 8927-8942.

  • Melki F. Zouaghi T. Ben Chelbi M. Bédir M. & Zargouni F. 2010: Tectono-sedimentary events and geodynamic evolution of the Mesozoic and Cenozoic basins of the Alpine Margin Gulf of Tunis north-eastern Tunisia offshore. C.R. Geosci. 342 741-753.

  • Mejri F. Burollet P.F. & Ben Ferjani A. 2006: Petroleum geology of Tunisia a renewed synthesis. Memoires ETAP Tunisia 22 1-233.

  • Morgan M. Grocott J. & Moody RTJ. 1992: The structural setting and evolution of the Zaghouan-Ressas structural belt in the Zaghouan area. Tunisian Atlas Northern Tunisia. Memoires ETAP Tunisia 5 193-209.

  • Patriat M. Ellouz N. Dey Z. Gaulier J.M. & Kilani H.B. 2003: The Hammamet Gabes and Chotts basins (Tunisia): a review of the subsidence history. Sediment. Geol. 156 1 241-262.

  • Pepe F. Sullia A. Bertottic G. & Catalano R. 2005: Structural highs formation and their relationship to sedimentary basins in the north Sicily continental margin (southern Tyrrhenian Sea): Implication for the Drepano Thrust Front. Tectonophysics 409 1-18.

  • Portolano P. Schein L. & Simonnot A. 2000: 3D Geological Modeling of the Birsa Oil Field. 7th ETAP EPC Proceedings 365-379.

  • Pique A. Brahim L.A. Ouali R.A. Amrhar M. Charroud M. Gourmelen C. Laville E. Rekhiss F. & Tricart P. 1998: Evolution structurale des domaines atlasiques du Maghreb au Méso- Cénozo; le rôle des structures héritées dans la déformation du domaine atlasique de l’Afrique du Nord. Bulletin de la Société Géologique de France 6 169 797-810.

  • Rey J. & Galeott S. 2008: Stratigraphy: terminology and practice. Editions TECHNIP 1-165.

  • Roure F. Casero P. & Addoum B. 2012: Alpine inversion of the North African margin and delamination of its continental lithosphere. Tectonics 31 3 TC3006.

  • Yaich C. Hooyberghs H.J.F. Durlet C. & Renard M. 2000: Corrélation stratigraphiques entre les unités oligo-miocènes de Tunisie centrale et le Numidien. Earth Planet. Sci. Lett. 331 499-506.

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