Zonación y principales características de los abanicos aluviales terciarios del borde norte de ja cuenca del Ebro (provincia de Huesca, España)

Abstract

The characteristics of the materiales outcropping in the northern limb of the Barbastro Anticline allow us to refer them to two types of fans: fluvial and alluvial fans: The first ones have a big extent (tens of km), they shows a slow transition between proximal and distal zones and its source area is located in the internal zones of the Pyrenees (Ainsa and Tremp Basins, and Axial Pyrenees). The second ones have a maximun radius of 5 km, they show faster transition between proximal and distal parts arid its source area fislocated in the External Ranges of the Pyrenean Chain