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Tectonic geomorphology of an active slow-moving, intrabasinal fault: the Galera Fault (Guadix-Baza Basin, central Betic Cordillera, southern Spain)

dc.contributor.authorMedina-Cascales, Iván
dc.contributor.authorGarcía-Tortosa, Francisco Juan
dc.contributor.authorMartín-Rojas, Iván
dc.contributor.authorPérez-Peña, Vicente
dc.contributor.authorAlfaro, Pedro
dc.date.accessioned2024-02-07T00:42:05Z
dc.date.available2024-02-07T00:42:05Z
dc.date.issued2021
dc.description.abstractIn this work, we prove the usefulness of morphometric analyses, typically applied to basin-border faults, to define the tectonic geomorphology of a slow-moving, intrabasinal structure: the Galera Fault (Guadix-Baza Basin, southern Spain). The Galera Fault is a 30 km-long, oblique-slip fault with major left-lateral and minor vertical slip components. Through geological and structural analyses, we define for the first time the detailed surface geometry of the fault, which is characterized by features typical of left-lateral strike-slip faults. The morphometric analysis indicates that a combination of slow slip rates and the high erodibility of the juxtaposed basin infill deposits favours a rapid landscape response to fault activity that erases many landscape effects related to active tectonics. This masking is more effective on features generated by strike-slip displacement, leaving only subtle evidence, such as local stream deflections and upstream widening of catchments. In contrast, geomorphic effects related to vertical displacement are better preserved, including the control of the geometry of the main rivers and morphological differences in the drainage network between the two fault blocks. On the upthrown fault block, streams are generally shorter and steeper and have greater valley incision, leading to the development of a badland landscape. Moreover, the vertical deformation of a Middle Pleistocene glacis surface (ca. 90 m) demonstrates the important role of this slow-moving intrabasinal fault in the generation of relief in the Betic Cordillera during recent Quaternary time. Although the impact of this fault on relief building is very low in comparison with oblique-slip, basin-border faults in the mountain range, it has a key control on the Quaternary landscape evolution.es_ES
dc.description.sponsorshipThis work was funded by the research project TASCUB (RTI2018-100737-B-I00) of the Spanish Ministry of Science, Innovation and Universities, the research group VIGROB053 (University of Alicante), and the research group RNM 325 of the Junta de Andalucía. Iván Medina Cascales was funded by Ph.D. contract FPU16/00202 of the Spanish Ministry of Science, Innovation and Universities.es_ES
dc.identifier.citationMedina-Cascales, I., García-Tortosa, F. J., Martin-Rojas, I., Pérez-Peña, J. V., & Alfaro, P. (2021). Tectonic geomorphology of an active slow-moving, intrabasinal fault: The Galera Fault (Guadix-Baza Basin, central Betic Cordillera, southern Spain). Geomorphology, 393, 107941.es_ES
dc.identifier.issn0169-555X (Print) | 1872-695X (Online)es_ES
dc.identifier.other10.1016/j.geomorph.2021.107941es_ES
dc.identifier.urihttps://doi.org/10.1016/j.geomorph.2021.107941es_ES
dc.identifier.urihttps://hdl.handle.net/10953/2206
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.ispartofGeomorphologyes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectTectonic geomorphologyes_ES
dc.subjectMorphometric analysises_ES
dc.subjectIntrabasinal faultes_ES
dc.subjectLandscape evolutiones_ES
dc.subject.udc2506.07es_ES
dc.titleTectonic geomorphology of an active slow-moving, intrabasinal fault: the Galera Fault (Guadix-Baza Basin, central Betic Cordillera, southern Spain)es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES

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