Dabrio, Cristino J.Martínez Gallego, J.2023-06-212023-06-2119730366-600Xhttps://hdl.handle.net/20.500.14352/64563Oligocenic materials are well represented in the upper Rio Segura valley. These materials are described and their relations with the synchronous ones of neighbouring areas are considered. A map showing the regional distribution of facies.spaFacies y distribución de los materiales oligocénicos en la cuenca alta del río Segurajournal articleopen accessGeología estratigráfica2506.19 Estratigrafía