Resumen: Some results obtained in the El Tranco-Santiago de la Espada area, located in the Sierras de Cazorla y
Segura (Prebetic Zone), are shown in this note.
The established series are described and related the one the other. Several importants lacunas and the presence of an
intramiocene unconformity are pointed out. A geological scheme are included.
Resumen: This paper account for result of a first general view of the materials from the final Cretaceus to the Nummulitic, in the sud-east area of the high Course of the Segura river.
The Senonian presents southwards a more open-sea facies character. The Paleocene shows pararecifal facies.
The passage from Cretaceous to Paleocene is represented by a lithological change
or, at least, a change in the deposition conditions, without evidences for the presence of an unconformity.
The Eocene has very homogeneous facies belonging to a shallow-water environment. The thickness seems to increase
Resumen: The succession of different stages of deformation, the last of them having taken place in the middle Miocene, has determined the imbricated structure of the Sierra de Cazorla and the easternmost boundary of the Guadalquivir Basin. The evolution of the structural features is analyzed and a tectonic interpretation of the resulting
structure is attempted.
: Tectónica regional, Prebético, Cuenca del Guadalquivir
Resumen: Oligocenic 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.