Caracterización sedimentológica reciente de dos sistemas Turbidíticos del área de Motril (NE Alborán)

V Congreso Geológico de España, 10-14 julio 2000, Alicante.-- 6 pages, 3 tables[EN] Sedimentological and physical parameters were analysed for eighteen cores recovered from the Sacratif and Calahonda turbidite systems. Six sedimentary facies were determinate: canyon, intercanyon, channel, levee, channelized lobe and sheet. Attention was paid to the spatial distribution of some of textural (grain size and sorting), compositional (carbonate content and sand fraction) and physical (magnetic susceptibility) parameters of the facies through the turbidite systems. The recent sedimentary evolution of Sacratif Turbidite System has been governed by spillover and gravity processes (turbidite), whereas in the Calahonda Turbidite System has occurred gravity processes (turbidite and debris-flows) in a first phase of deposition, andhemipelagic and low-density gravity flows in a second phase. The occurrence of these processes suggest that the Sacratif Turbidite System is presently active whereas in the Calahonda Turbidite System the sedimentary activity has decreased with time[ES] En el Mar de Alborán destaca la escasez de estudios sedimentológicos detallados en sistemas turbidíticos (Lebreiro y Alonso, 1998; Alonso et al., 1999) en contraste con los numerosos estudios llevados a cabo en esta región desde el punto de vista de evolución geodinámica y sedimentaria del margen y cuenca (Bouma y Maldonado, 1992; Ercilla et al., 1994; Estrada et al., 1997; Alonso etal., 1999; Zahn et al., 1999; Pérez-Belzuz, 1999; Pérez- Belzuz y Alonso, 2000 a y b; Pérez-Belzuz et al., 2000). En este sentido, este trabajo se centra en el estudio de la sedimentación reciente de los sistemas turbidíticos de Sacratif y Calahonda localizados en el margen y cuenca de Motril (NE del Mar de Alborán) [...]Peer reviewe