Active tectonics and drainage evolution in the Tunisian Atlas driven by interaction between crustal shortening and mantle dynamics

Abstract

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Drainage Network Patterns Determinism: A Comparison in Arid, Semi-Arid and Semi-Humid Area of Morocco Using Multifactorial Approach

“…F3 shows a negative correlation with the "Homo-Geo" parameter (Table 5). This reflects a lithological heterogeneity and thus confirms the conditions of a complex geological structure, in which these two high relief patterns evolve [40,42,47].…”

“…The External Rif and the Middle Atlas sectors are geologically recent structural domains compared to the Anti-Atlas, which belongs to a more stable African craton. In these two sectors, the basins present a fairly young stage of erosion due to active alpine tectonics and deformations, in particular uplifts, which characterize the evolution of the landscape and the distribution of drainage networks [44,46,47]. The high correlation scores observed with the morphometric, relief, and lineament density parameters corroborate this interpretation (Figure 7b,c).…”

Analysis of the Geological Controls and Kinematics of the Chgega Landslide (Mateur, Tunisia) Exploiting Photogrammetry and InSAR Technologies

“…The local name of this structure is "Kef Chgega" ( ), which means "the open fracture of Chgega Mountain". Although the site is a well-known landmark in the region of Mateur and forms a remarkable spot from different standpoints, only brief descriptions of it can be found in the scientific literature [2,14,15]. This paper completes previous contributions by describing in greater detail the characteristics of this large landslide, its main singularities, and the conditions favoring the geomorphological evolution of this impressive DGSD.…”

“…The topography of Northern Tunisia is therefore strongly influenced by this general convergent setting. However, it does not show the landscape characteristics of a mature orogenic belt with a well-developed transverse drainage system [15,25,26]. A smooth and low relief largely characterizes the entire region.…”

Quaternary Seismostratigraphy and Tectonosedimentary Evolution of the North Tunisian Continental Margin

“…In summer to fall 2013 we carried out a comprehensive bathymetric mapping and subbottom profiling work in the region, collecting a large data set to study recent and active tectonic and sedimentary processes. Northern Tunisia is located in a region where the deformation of the north African margin, well defined in Algeria, transitions to the reactivated margin of north Sicily (e.g., Billi et al, 2007, 2011; Camafort, Pérez‐Peña, et al, 2020; D'Agostino & Selvaggi, 2004; Déverchère et al, 2005; Goes et al, 2004; Kherroubi et al, 2009; Strzerzynski et al, 2010; Yelles et al, 2009). Thus, studying the continental margin of northern Tunisia provides information on a poorly known complex zone of deformation (Figure 1).…”