English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/12703
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:
DC FieldValueLanguage
dc.contributor.authorUribelarrea, David-
dc.contributor.authorBenito, Gerardo-
dc.identifier.citationGeomorphology. 100, 14-31en_US
dc.description.abstractHolocene fluvial changes of the Guadalquivir River at Córdoba City were studied with an emphasis on floodplain development, river migration rates, sedimentation rates and environmental history. During the Holocene, the Guadalquivir River has developed a large meander (El Arenal) with a general southwards lateral migration, undercutting Tertiary bedrock, and with a total incision of 9 m, which developed three alluvial surfaces: Fp1, Fp2 and Fp3. The oldest floodplain surface Fp1 (+ 7–9 m) was deposited during the early Holocene and reached its maximum extent around 1000 yr BP. The next floodplain surface Fp2 (+ 5 m) accumulated 500 to 1000 yr ago. Finally, the youngest floodplain surface (Fp3, + 1–2 m) was developed in the last 500 yr. Migration rates and direction changed from 690–480 m2 yr− 1 in Fp1 (to the southeast), 2280 m2 yr− 1 in Fp2 and 620 m2 yr− 1 in Fp3 (to the west). The stratigraphical study of palaeomeanders and chute channel deposits show evidence of river position and dynamics through recent times: (1) “San Eduardo” was filled 4000 yr BP; (2) “Madre Vieja” has been active since 2100 yr BP to the present day; and (3) “El Cortijo” was formed and filled during historical times (the last 1000 yr). The chronology of the alluvial stratigraphy and fluvial dynamics are discussed within the context of historical hydrologic, climatic and anthropogenic changes. In addition, the geomorphological reconstruction of the riverine landscape in historical times provided some clue to the location of Medinat al-Zahira, a lost Muslim settlement built in the 10th century AD and believed to be situated at, or nearby, the Arenal meander. Paleogeographical analysis shows that the most suitable conditions for this medieval settlement were found on the northeast part of the Arenal meander.en_US
dc.description.sponsorshipThis research was funded by a grant from Proyectos de Córdoba Siglo XXI coordinated by Prof R. José Roldán Cañas (Universidad de Córdoba).en_US
dc.format.extent5160 bytes-
dc.subjectChannel migrationen_US
dc.subjectFloodplain stratigraphyen_US
dc.subjectMedinat al-Zahira settlementen_US
dc.subjectGuadalquivir riveren_US
dc.titleFluvial changes of the Guadalquivir river during the Holocene in Córdoba (S. Spain)en_US
dc.description.peerreviewedPeer revieweden_US
Appears in Collections:(IRN) Artículos
(IGE) Artículos
Files in This Item:
There are no files associated with this item.
Show simple item record

Related articles:

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