Corrélation stratigraphique entre les unités oligo-miocènes de Tunisie centrale et le Numidien

Yaich, Chokri; Hooyberghs, Herman-Jean-François; Durlet, Christophe; Renard, Maurice

doi:10.1016/s1251-8050(00)01443-9

Cited by 24 publications

(29 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1b). These deposits correspond to those of an alluvial plain (Hooberghs 1992;Yaïch 1997;Yaïch et al 2000), noticed by Yaïch (1997) as equivalent to the carbonated facies of the Ketatna Formation. Fournié (1978) attributed it to Aquitanian by framing (Yaïch 1997) (Fig.…”

Section: Lithostratigraphysupporting

confidence: 64%

“…As for the Salambô facies, it is mostly argillaceous-marly and definitely deeper than the Ketatna facies (Bismuth and Hooberghs 1994). The Fortuna Formation is formed by the superposition in time and space of two deltaic systems prograding toward the east and NE (Ben Ismaïl-Lattrache and Bobier 1984Bobier , 1996Yaïch et al 1994Yaïch et al , 2000Yaïch 1997). These deposits are bordered in the east and the southeast by coastal marine deposits, lagoonal in places, especially in the NS axis.…”

Section: Lithostratigraphymentioning

confidence: 99%

See 1 more Smart Citation

Seismic and well log post-Cretaceous reservoir correlations in the Sahel, east Tunisia

et al. 2015

View full text Add to dashboard Cite

International audienceThe eastern part of Tunisia is made up of the Atlasic chain foreland, a domain connected to a continental crust which thins northeastward. It is limited to the west and northwest by the corridor of the NS axis faults and by the Zaghouan fault which separates it from the Atlasic domain and trends toward the Pelagian Sea eastwards. It is regarded as a stable zone. The signs of the main events which generated the Atlasic structures are hidden under a thick Plio-Quaternary cover. From surface observations, microtectonic measurements, and lithostratigraphic sections and logs, including those of oil well log data and seismic profiles onshore and offshore, one notes (i) an in-depth and lateral variation of the lithostratigraphic series and (ii) a considerably faulted area at subsurface characterized by a complex structural evolution and shears associated with basins. Such variations are controlled by tectonics and eustatism. The eastern platform is affected only by N45° oriented folds, often accompanied by reverse faults and associated with N90–110° dextral and N160–180° sinistral shears. It corresponds to a tectonic foreland domain representing a folded and sheared deformation zone. The tectonic deformations recognized by seismic data only affect narrow corridors, lengthened and oriented according to three major directions: N45°, N100–120°, and N160–180°. These zones, mobile at several geological periods and tectonically complex, delimit large sectors which have undergone minimal deformation or none at all. Well developed in the Sahel, the reservoirs are carbonated and fractured types such as the limestones of Abiod, Metlaoui, Souar and Chérahil, Aïn Grab, and the Oum Dhouil group. Structural traps for the accumulation of hydrocarbons were formed following these Atlasic compression and folding phases. The deposit of thick argillaceous series during the Eocene (Souar and Chérahil) and during the Miocene (Oum Dhouil) constitutes good continuous covers which sealed the folded and faulted reservoir structures. The seismic profiles show traps which are associated with folded and closure structures by faults and stratigraphic traps through facies changes. The structural inversions and the thrust tectonics in eastern Tunisia play a significant role in the structuring of the cover and also in the evolution of the oil system emplacement. The reservoirs are supplied by bed rocks of the Cretaceous (Bahloul Formation) and the Eocene (Metlaoui Formation)

show abstract

Section: Lithostratigraphysupporting

confidence: 64%

Section: Lithostratigraphymentioning

confidence: 99%

Seismic and well log post-Cretaceous reservoir correlations in the Sahel, east Tunisia

et al. 2015

View full text Add to dashboard Cite

show abstract

“…1B), and in the Messeftine-Utique area (as deduced from petroleum wells), indicates its location on a structural high during rifting in the western Mediterranean (Rehault et al, 1984;Gennesseaux and Stanley, 1983;Yaïch et al, 2000;Ait Brahim et al, 2002;Bouaziz et al, 2002;Melki et al, 2009). The NE-SW OligoceneAquitanian extension led to the formation of uplifts, which can be identified, in the Sidi Bou Said and Korbous outcrops (the south of the study area) by Ben Salem (1992).…”

Section: Geological Settingmentioning

confidence: 92%

“…Lamotte et al, 2009) and the Oligocene extensional stage (Ben Ayed, 1993;Melki, 1997;Yaïch et al, 2000;Talbi et al, 2008;Melki et al, 2010). The distribution of basins is essentially controlled by two main structural trends ( Fig.…”

Section: Geological Settingmentioning

confidence: 99%

Structuring and evolution of Neogene transcurrent basins in the Tellian foreland domain, north-eastern Tunisia

Melki

Zouaghi

Harrab

et al. 2011

Journal of Geodynamics

View full text Add to dashboard Cite

“…In the Tunisian part of the African margin (Tunisian Atlas), the wide Fortuna delta system development was contemporaneous with the Numidian flysch deposition; and it represents one of its main sources (Yaich et al, 2000). The Numidian Formation extends in Eastern Algeria with similar characteristics (Vila, 1980).…”

Section: Sedimentary Record Of the Oligocene Geodynamic Changementioning

confidence: 99%

The Tell-Rif orogenic system (Morocco, Algeria, Tunisia) and the structural heritage of the southern Tethys margin

Leprêtre

Lamotte

Combier

et al. 2018

BSGF - Earth Sci. Bull.

100

View full text Add to dashboard Cite

-The Tell-Rif (Tell in Algeria and Tunisia; Rif in Morocco) is the orogenic system fringing to the south the West Mediterranean basins. This system comprises three major tectonic-palaeogeographic zones from north to south: (1) the internal zones (AlKaPeCa for Alboran, Kabylies, Peloritan, Calabria) originating from the former northern European margin of the Maghrebian Tethys, (2) the "Flyschs zone" regarded as the former cover of the oceanic domain and (3) the external zones, forming the former southern Maghrebian Tethys margin more or less inverted. The Tell-Rif is interpreted as the direct result of the progressive closure of the Maghrebian Tethys until the collision between AlKaPeCa and Africa and, subsequently, the propagation of the deformation within Africa. This gives a consistent explanation for the offshore Neogene geodynamics and most authors share this simple scenario. Nevertheless, the current geodynamic models do not completely integrate the Tell-Rif geology. Based on the analysis of surface and sub-surface data, we propose a reappraisal of its present-day geometry in terms of geodynamic evolution. We highlight its non-cylindrical nature resulting from both the Mesozoic inheritance and the conditions of the tectonic inversion. During the Early Jurassic, we emphasize the development of NE-SW basins preceding the establishment of an E-W transform corridor connecting the Central Atlantic Ocean with the Ligurian Tethys. The Maghrebian Tethys developed just after, as the result of the Late Jurassic-Early Cretaceous left-lateral spreading between Africa and Iberia. By the Late Cretaceous, the occurrence of several tectonic events is related to the progressive convergence convergence between the two continents. A major pre-Oligocene (pre-35 Ma) compressional event is recorded in the Tell-Rif system. The existence of HP-LT metamorphic rocks associated with fragments of mantle in the External Metamorphic Massifs of the Eastern Rif and Western Tell shows that, at that time, the western part of the North-African margin was involved in a subduction below a deep basin belonging to the Maghrebian Tethys. At the same time, the closure of the West Ligurian Tethys through east-verging subduction led to a shift of the subduction, which jumped to the other side of AlKaPeCa involving both East Ligurian and Maghrebian Tethys. Slab rollback led to the development of the Oligo-Miocene back-arc basins of the West-Mediterranean, reworking the previous West Ligurian Tethys suture. The docking of AlKaPeCa against Africa occurred during the Late Burdigalian (17 Ma). Subsequently, the slab tearing triggered westward and eastward lateral movements that are responsible for the formation of the Gibraltar and Tyrrhenian Arcs respectively. The exhumation of the External Metamorphic Massifs occurred through tectonic underplating during the westward translation of the Alboran Domain. It resulted in the formation of both foredeep and wedge-top basins younger and younger westward. The lack of these elements in the eastern part ...

show abstract

Corrélation stratigraphique entre les unités oligo-miocènes de Tunisie centrale et le Numidien

Cited by 24 publications

References 4 publications

Seismic and well log post-Cretaceous reservoir correlations in the Sahel, east Tunisia

Seismic and well log post-Cretaceous reservoir correlations in the Sahel, east Tunisia

Structuring and evolution of Neogene transcurrent basins in the Tellian foreland domain, north-eastern Tunisia

The Tell-Rif orogenic system (Morocco, Algeria, Tunisia) and the structural heritage of the southern Tethys margin

Contact Info

Product

Resources

About