Detailed analysis of the interaction between alongslope and downslope sedimentary processes in the Alboran Sea during the Pliocene and Quaternary
Authors
Juan-Valenzuela, C. (Carmen); Ercilla, G.; Alonso, B. (Belén); Estrada, F.; Vázquez, J.T. (Juan Tomás); Casas, D. (David); Hernández-Molina, F.J.; El Moumni, B.; d'Acremont, E.; Gorini, Ch.Date
2016-01-26Type
conferenceObjectKeywords
Alboran SeaContouritic processes
Gravitational processes
Pliocene
Quaternary
Abstract
This work aims to analyze the interaction between alongslope contouritic and downslope gravitational processes in the Alboran Sea. Recent results (Juan et al., 2012, 2016) demonstrated that the Pliocene and Quaternary stratigraphic architecture is mostly made up the vertical stacking of contourites interrupted by turbidite systems (TSs). The accurate analysis of all available seismic profiles has revealed several morpho-sedimentary signatures produced by the interaction of the Atlantic Water (AW) and Mediterranean waters (MWs) with the gravity flows in the Pliocene and Quaternary sedimentary record, as well as on the present-day seafloor. Different levels of interaction have been identified and they move between two-end-members: from bottom currents dominating gravity flows, to gravity flows dominating bottom currents. In between these extreme cases, a range of possibilities can occur. First, downslope and alongslope processes can alternate, with vertical and cyclic stacking of both types ...
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