English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/19849
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Influence of strike-slip fault segmentation on drainage evolution and topography. A case study: the Palomares Fault Zone (southeastern Betics, Spain)

AuthorsBooth-Rea, Guillermo; Azañón, José Miguel ; Azor, Antonio ; García-Dueñas, Víctor
KeywordsStrike-slip faulting
Fault segmentation
Drainage pattern
Uplift rates
Southeastern Betics
Issue Date1-Sep-2004
CitationJournal of Structural Geology 26 (9): 1615-1632 (2004)
AbstractThe Palomares Fault Zone (PFZ) is one of the main sinistral strike-slip faults in the Betics (SE Spain), with approximately 16 km of north–south displacement. The PFZ initiated during the Tortonian–Messinian as a transfer structure linking areas subject to NW/SE shortening. During the Plio-Quaternary the fault zone lengthened cutting previous fold structures and widened towards the east displacing the active mountain front to the western border of Sierra Almagrera–Sierra Almenara. These Sierras, which show moderate uplift rates of 0.05–0.15 m/ka, formed in response to the oblique-slip regime of the PFZ. The drainage system in the vicinity of the PFZ is asymmetric with respect to a main axial valley that runs parallel to the PFZ on the downthrown fault block. In this block, the drainage density is lower and the streams are longer than in the uplifted block. Furthermore, west of the main axial valley the streams describe eastward directed deflections, indicating the progressive eastward migration of the main axial valley during the Pleistocene. The drainage system on the uplifted ranges shows a consequent pattern, indicating recent uplift and folding under NNW/SSE convergence. Recent activity along segments of the PFZ has increased topographical gradients, favouring dissection of previous streams by headward erosion of streams transverse to the active fault segments.
Publisher version (URL)http://dx.doi.org/10.1016/j.jsg.2004.01.007
Appears in Collections:(IACT) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.