El desarrollo estratigráfico en las unidades alóctonas del área de Gámonedo-Cabrales (Picos de Europa, Asturias, NW de España)

Abstract

Structural and palaeontological (mainly fusulinids) studies of the area between Gamonedo and Cabrales have shown the existence of more than nine tectonically superposed units showing differences in the uncohformable syn-orogenic successions deposited in between orogenic episodes. There are three successions, the lower one between the Leonian and Asturian unconformities composed of the Gamonedo arid Demues formations of latest Moscovian (Myachkovsky) - mid Kasimovian (Khamovnichesky) age, the middle one between the Asturian and Saalian unconformities and consisting of the Puentelles and Cavandi formations of late Kasimovian (Dorogomilovsky) - Gzhelian age, and the higher one above the Saalian unconformity, represented by the Mestas de Con Formation of Gzhelian age