Nota previa sobre las características litoestratigráficas de las formaciones "Arenas de Utrillas" y "Lignitos de Escucha"
Abstract
This paper deabs wiith the new data about the paleogeagraphy and litostratigraphy 0f the Utrillas and Escucha formations, in the area N of the type locality. Several synthetized litostratigraphic sections are correlationed, and a first isopach map is compri~sed. A sedimentary rupture has been detected at the bottom of Utrillas formation. Some data abaut the mineralogy of claysized frackion in the lsediments are given.