Origin of morphological depressions on the Guadalquivir Bank uplifted area (Gulf of Cadiz middle slope)
Authors
García, M.; Hernández-Molina, F.J.; Alonso, B.; Vázquez, J.T. (Juan Tomás); Ercilla, G.; Llave, E.; Casas, D.; Juan, C.Date
2016-01-26Type
posterKeywords
Gul of CadizContinental Margin
Geomorphology
Abstract
We have investigated the origin of morphological depressions (circular-elliptical depressions, amphitheatre-shaped escarpments and valleys) on the Guadalquivir Bank uplifted area (Gulf of Cadiz middle slope). This work is based on swath bathymetry and high- and mid-resolution reflection seismic datasets. Depressions occur on the distal (depositional) sector of the Gulf of Cadiz Contourite Depositional System, which has been developed under the influence of the Mediterranean Outflow Water (MOW). The Guadalquivir Bank is a NE-oriented relief that was uplifted along the Neogene and Quaternary. It forms the southern limit of the Bartolomeu Dias and Faro Sheeted Drift (SD) plateaus that are separated by the NW-trending Diego Cao Contourite Channel. Circular-elliptical depressions occur on the Bartolomeu Dias SD plateau, aligned parallel to the rim of the Diego Cao Channel. Irregular, crescent-shaped depressions occur to the SE of the study area and a valley surrounds the Guadalquivir Bank. ...
The following license files are associated with this item: