Shallow tectonics on the middle continental slope of the northeastern Gulf of Cadiz continental margin (SW Iberia)
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AuthorsVázquez, J.T. (Juan Tomás); Fernández-Puga, M.C.; Palomino, D. (Desirée); Fernández-Salas, L.M. (Luis Miguel); Sánchez-Guillamón, O. (Olga); López-González, N. (Nieves); Díaz-del-Río-Español, V. (Víctor); Vegas, Ramón
Editor/sDíaz-del-Río-Español, V. (Víctor); Bárcenas, P.; Fernández-Salas, L.M. (Luis Miguel); López-González, N. (Nieves); Palomino, D. (Desirée); Rueda, J.L. (José Luis); Sánchez-Guillamón, O. (Olga); Vázquez, J.T. (Juan Tomás)
Gulf of Cadiz
The northeastern sector of the Gulf of Cadiz continental margin has been deeply studied the last two decades. The seafloor is characterized by the Gulf of Cadiz Contourite Depositional System, strong diapirism and seepage related to the mobility of the frontal units of the Gibraltar Arc. Since 2010 high resolution bathymetric data and high and very high resolution seismic reflection and parametric echosounder profiles have improved the resolution of the previous collected data set. These data allow to analyze the middle continental slope morphology and its shallow structure with the aim to know the active tectonic processes on the seafloor. Two types of structures have been considered: (a) anticline domes and (b) normal faults which produce linear scarps and tectonic depressions. The shallow tectonics in this region is mainly related to the high mobility of geological formations in the subsoil and their ductile mechanical behaviour.
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