Secuencias estratigráficas del Berriasiano-Aptiano en la Cuenca de Sabinas: su significado en el entendimiento de la evolución geológica del noreste mexicano

berriasian-aptian stratigraphic sections of the sabinas basin, northeastméxico, show three major unconformities as second order sequence boundaries. every sequence includes transgressive-regressive tracts and a máximum flooding zone. from the chihuahua basin to the tampico basin there are transgressive-regressive tracts placed at the same age and stratigraphic level, which are correlative to the sabinas sections. the previous sequence boundaries may have a subordinate tectonic component, but sequence analysis indicates that these sequences are due to variations mostly linked to eustatic changes in sea level globally, as mentioned by other authors.