Les inversions tectoniques de la Tunisie centro-septentrionale

Turki, Mohamed Moncef; Delteil, Jean; Truillet, Rene; Yaich, Chokri

doi:10.2113/gssgfbull.iv.3.399

Cited by 38 publications

(30 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…East‐trending Paleozoic basins have been also identified in the Chott area in Tunisia and in Northern Libya. No matter whether they are Paleozoic, Triassic or Jurassic, all these pre‐existing features exerted a strong control on the localization of Alpine inversions along the North African margin, from Morocco in the west up to Cyrenaica in the east [ Guiraud , 1975, 1998; Khessibi , 1976; Kazi‐Tani , 1986; Bouaziz et al , 1988; Turki et al , 1988; Soyer and Tricart , 1989; Zizi , 1996; Guiraud and Bosworth , 1997; Morgan et al , 1998; Khomsi et al , 2006; Bosworth et al , 2008; Chaari and Trémolières , 2010; Frizon de Lamotte et al , 2011].…”

Section: Pre‐collisional Coupling and Early Inversion Featuresmentioning

confidence: 99%

Alpine inversion of the North African margin and delamination of its continental lithosphere

Roure¹,

Casero²,

Addoum³

2012

Tectonics

176

129

View full text Add to dashboard Cite

This paper aims at summarizing the current extent and architecture of the former Mesozoic passive margin of North Africa from North Algeria in the west up to the Ionian‐Calabrian arc and adjacent Mediterranean Ridge in the east. Despite that most paleogeographic models consider that the Eastern Mediterranean Basin as a whole is still underlain by remnants of the Permo‐Triassic or a younger Cretaceous Tethyan‐Mesogean ocean, the strong similarities documented here in structural styles and timing of inversion between the Saharan Atlas, Sicilian Channel and the Ionian abyssal plain evidence that this portion of the Eastern Mediterranean Basin still belongs to the distal portion of the North African continental margin. A rim of Tethyan ophiolitic units can be also traced more or less continuously from Turkey and Cyprus in the east, in onshore Crete, in the Pindos in Greece and Mirdita in Albania, as well as in the Western Alps, Corsica and the Southern Apennines in the west, supporting the hypothesis that both the Apulia/Adriatic domain and the Eastern Mediterranean Basin still belong to the former southern continental margin of the Tethys. Because there is no clear evidence of crustal‐scale fault offsetting the Moho, but more likely a continuous yet folded Moho extending between the foreland and the hinterland beneath the Mediterranean arcs, we propose here a new model of delamination of the continental lithosphere for the Apennines and the Aegean arcs. In this model, only the mantle lithosphere of Apulia and the Eastern Mediterranean is still locally subducted and recycled in the asthenosphere, most if not all the northern portion of the African crust and coeval Moho being currently decoupled from its former, currently delaminated and subducted mantle lithosphere.

show abstract

Section: Pre‐collisional Coupling and Early Inversion Featuresmentioning

confidence: 99%

Alpine inversion of the North African margin and delamination of its continental lithosphere

Roure¹,

Casero²,

Addoum³

2012

Tectonics

176

129

View full text Add to dashboard Cite

show abstract

“…This structural setting is well defined on the basis of 18 lithostratigraphic and structural affinities. Previous studies outlines the implication of the Triassic 571 evaporites in the main thrust fault (Turki, 1980;Turki et al, 1988;Khomsi et al, 2016). This fact is 572 favor to admit that Triassic evaporites are previously concerned by earlier tectonics.…”

Section: Present-day Regional Geometry Of North Tunisia 550mentioning

confidence: 98%

“…This local distribution sedimentation was qualified 400 by previous work as the result of the so-called "Zaghouan flexure" (or Zaghouan fault) separating 13 subsiding Jebel Oust area from other edge with reduced thickness (Jebel Sidi-Salem). Apparently, no 402 significant flexure has worked at the base of the current Zaghouan fault during the Barremian, but it 403 is possible to envisage a synsedimentary fault or set of faults further west separating subsiding areas 404 of the Tunisian trough (Jebel Oust) from other sections with reduced thickness (Turki, 1988 (Fig. 5).…”

Section: Lithostratigraphic Correlation 387mentioning

confidence: 99%

“…This later 565 was defined as T2 by Jauzein, 1967 in its major fault systems enumeration in Tunisia, which was 566 defined 6 major lines numbered from T1 to T6). In the Zaghouna area, this system shows the Jurassic 567 platform limestones thrusted over the Cenozoic sequences (Turki et al, 1988;Khomsi et al, 2016). 568…”

Section: Present-day Regional Geometry Of North Tunisia 550mentioning

confidence: 99%

“…It is also clear 573 that thickness and facies variations characterize the Jurassic and cretaceous sequences early 574 controlled by active extensional setting (Souquet et al, 1997;Morgan et al, 1998). In thin-skinned 575 model of deformation, previous studies highlight that such variation guides the style and the position 576 of the major subsequent thrusting (Turki et al, 1988;Souquet et al, 1997;Morgan et al, 1998). 577 been deposited.…”

Section: Present-day Regional Geometry Of North Tunisia 550mentioning

confidence: 99%

See 2 more Smart Citations

Cretaceous paleomargin tilted blocks geometry in northern Tunisia: stratigraphic consideration and fault kinematic analysis

Naji¹,

Masrouhi²,

Amri³

et al. 2018

Arab J Geosci

View full text Add to dashboard Cite

New stratigraphic data, lithostratigraphic correlations and fault kinematic analysis are used to discuss 12 the basin geometry and sedimentation patterns of the northeastern Tunisia during Cretaceous times. 13 Significant facies and thickness variations are deduced along the northeastern Atlas of Tunisia. The 14 NW-SE 80 km-long regional correlation suggests a high sedimentation rates associated with irregular 15 sea floor. The fault kinematic analysis highlights N-S to NE-SW tectonic extension during early 16 Cretaceous. During Aptian-Albian times, an extensional regime is recognized with NE-SW tectonic 17 extension. The Cenomanian-Turonian fault populations highlight a WNW-ESE to NW-SE extension, 18 and, Campanian-Maastrichtian faults illustrate NW-SE extension. The normal faulting is associated to 19 repetitive local depocenters with a high rate of sedimentation as well as abundant syntectonic 20 conglomeratic horizons, slump folds and halokinetic structures. The sequences correlation shows 21 repetitive local depocenters characterizing the basin during early Cretaceous times. All the above 22 arguments are in favor of basin configuration with tilted blocks geometry. This geometry is shaped by 23 major synsedimentary intra-basin listric normal faults, themselves related to the extensional setting 24 of the southern Tethyan paleomargin, which persisted into the Campanian-Maastrichtian times. The 25 results support a predominant relationship between tilted blocks geometry and sedimentation rather 26 than E-W "Tunisian Through" as it was previously accepted.

show abstract

An Overview of the Eastern Atlas Fold and Thrust Belt and Its Foreland Basin Along the North–South Axis and Chorbane–Ktitir Platform: Surface/Subsurface Major Structures and Tectonic Evolution (North Africa)

Mezni

Khomsi

2023

Regional Geology Reviews

View full text Add to dashboard Cite

Les inversions tectoniques de la Tunisie centro-septentrionale

Cited by 38 publications

References 0 publications

Alpine inversion of the North African margin and delamination of its continental lithosphere

Alpine inversion of the North African margin and delamination of its continental lithosphere

Cretaceous paleomargin tilted blocks geometry in northern Tunisia: stratigraphic consideration and fault kinematic analysis

An Overview of the Eastern Atlas Fold and Thrust Belt and Its Foreland Basin Along the North–South Axis and Chorbane–Ktitir Platform: Surface/Subsurface Major Structures and Tectonic Evolution (North Africa)

Contact Info

Product

Resources

About