Deformación reciente y fallas activas de la cuenca de Guadix-Baza (Cordillera Bética central)
- Francisco Juan García Tortosa 1
- Carlos Sanz de Galdeano Equiza 2
- Pedro Alfaro García 3
- Jesús Galindo Zaldívar 4
- 1 Dpto. Geología, Facultad Ciencias, Universidad de Jaén
- 2 Instituto Andaluz Ciencias Tierra (CSIC)
- 3 Dpto. Ciencias de la Tierra y Medio Ambiente, Facultad de Ciencias, Univ. Alicante.
- 4 Dpto. Geodinámica, Facultad de Ciencias. Universidad de Granada
ISSN: 1576-5172
Ano de publicación: 2008
Título do exemplar: VII Congreso Geológico de España
Número: 10
Páxinas: 1007-1010
Tipo: Artigo
Outras publicacións en: Geotemas (Madrid)
Resumo
In the Guadix-Baza basin coexist compressive (mainly folds) and extensional structures (mainly normal faults), in the same way that strike-slip faults and some diapirs in Keuper Triassic facies. In order to study the most recent deformations and the active faults we have used, as a marker, the last sediments of the basin and the main glacis. This geomorphological surface developed until the Middle or Late Pleistocene, when the basin drainage network was captured by the Guadalquivir river. Among the most active faults stand out the Baza, Galera and Zamborino normal faults which accommodates the ENEWSW extension and the Alfahuara-Botardo fault, which has an associated anticlinal at the surface. The slip rate (vertical) varies between 0.1 and 0.3 mm/year, although is lower at the Alfahuara-Botardo fault where is approximately 0.03 mm/year.