La sedimentación neógena en los márgenes de la cuenca del Empordá

Abstract

The Empordci basin is located at the northeast of the Iberian Peninsula in this Basin several deltaic and alluvial fans were deposited during the Neogene. Three of them are aged Miocene and nine Pliocene. The location, thickness and evolution of the Neogene fans are related to the distribution and features of the faults appearing in the Emporda basin. Such fans are arranged in a semicircular way at the borders of the basin. Their paleocurrents distribution is radial towards the center of the basin. Both clasts, litologics and paleocurrent analysies depict the exact source area of each fan. In the eastern part of the Cavarres fan only a single marine facies outcrop can be recognized, which is attributed to the upper Miocene. The pliocene fan deltas are partially correlable with the marine facies of the same age, located in the center of the basin. The pliocene sediments at Viladomal are interpreted as a Cilbert-type delta with northwest wards paleocurrents, and it was deposited in the mouth of the paleo-Dard river (Corredor d'Albons)