Superficies de erosión neógenas y neotectónica en el borde NE de la Cuenca del Duero

Abstract

In the northeastern border of the Duero Bassin two erosiona/ surfaces formed on mesozoic materia/s are distinguished. The oldest one, actually limited to iso/ated summits, is probably of middle-Miocene age. The youngest one is linked to the colmation surface of the Duero Bassin («Páramos» limestones) and therefore of Turolian-Pliocene age. Tectonic deformations with a NW-SE strike affecting this surface in the southeastern border of the Cantabrian Chain are deduced