RT Journal Article T1 El papel de la tectónica en el límite de unidades genéticas: la ruptura intra-Bathoniense superior (Cordilleras Béticas, Zonas Externas) T1 The tectonic role in the boundaries of genetic units: the intra-upper Bathonian sedimentary break (External Zones, Betic Ranges) A1 Rey Arrans, Javier AB In the Cehegin area (prov. of Murcia), in the External Subbetic of the Betic Ranges, the top of the ¡-4b genetic unit (sensu Rey, 1993) have been studied. This unit is bounded at its base and top by the intraUpper-Bajocian and intra-Upper-Bathonian sedimentary breaks, respectively. Field data (paleofaults, lateral wedging, neptunian dykes...) point to significant tectonic influence. Therefore, the tectonic factor could have been more important than the eustatic changes PB Sociedad Geológica de España YR 1995 FD 1995 LK http://hdl.handle.net/10272/13390 UL http://hdl.handle.net/10272/13390 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026