Presencia del Alogrupo de Figols en las turbiditas de la base del Grupo de Hecho (Barranco del Sorrosal, Prov. de Huesca)

Abstract

The turbidite equivalent of the Figols Allogroup can be recognized at the base ofthe Hecho Croup. Three deposition a! sequences -Figols 1,2 and 3- are recorded and are organized in third order stages of growth. All the sequences have similar features in the first stage. Lower boundaries are tectonically induced. A sudden zonal basinward shifting occurs and depositional systems (lobes) are developed. Second and third stages are well developed in Figols 2 and 3. The second stages record a strong and progressive landward shifting in both systems and the third stages are the basinat expression of the foreland carbonate ramps