Morphometry of the Sierra Cabrera, a pop-up structure between the Palomares and Polopos conjugate fault zones (SE Betics)
- F. Giaconia 1
- G. Booth-Rea 1
- J.M. Martínez-Martínez 1
- J.V. Pérez-Peña 1
- J.M. Azañón 1
- 1 Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR)
ISSN: 1576-5172
Año de publicación: 2012
Título del ejemplar: VIII Congreso Geológico de España, Oviedo, 17-19 de julio, 2012.
Número: 13
Páginas: 1706-1709
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
The Sierra Cabrera anitform occurs at the confluence between the Palomares and Polopos conjugate strike-slip faults, with NNE-SSW and WNW-ESE and sinistral and dextral kinematics, respectively. Furthermore, the sinistral Carboneras fault runs obliquely to the antiform at its southeastern edge. The antiform shows a box profile with reverse faults cutting its limbs. In order to test their Quaternary activity and control on the relief, here we present new qualitative and quantitative geomorphic analyses using the following indices: mountain-front sinuosity, valley floor width-to-height ratio, drainage basin asymmetry factor, basin hypsometric curve, and the SLk index. The faults bounding the antiform induce geomorphic features related to their kinematics and uplift. The geomorphic and structural data indicate that the relief of the Sierra Cabrera antiform is controlled by the occurrence of a pop-up structure formed by the recent activity of these faults in the constrinctional domain between the Palomares-Polopos conjugate strike-slip faults.