Cartografiando la dinámica sedimentaria de la región del Banco de Galicia
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AuthorsErcilla, G.; Casas, D. (David); Somoza-Losada, L. (Luis); Vázquez, J.T. (Juan Tomás); Iglesias, J.; García-Gil, S.; Medialdea, T.; León, R.; Estrada, F.; ERGAP Project; Cruise Teams
A detailed geomorphologic analysis, based on multibeam bathymetry and 3,5 kHz and high resolution multichannel seismic profiles, has allowed to image the sediment dynamic of the Galicia Bank region. Three types of features have been defined based on their origin: tectonic (fault scarps, seamounts and highs) erosive (slide scars, gullies, channels, moats, furrows) and depositional (slides, contourites, sediment waves, and wedges and lobes formed by mass-flow deposits). The understanding of the interplay among these features has permitted to define three sedimentary systems (slope apron, contourite and mixed) as well as the processes operating across the systems.