Quantification of fluvial incision in the Duero Basin (NW Iberia) from longitudinal profile analysis and terrestrial cosmogenic nuclide concentrations

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dc.contributor.authorAntón López, Loreto
dc.contributor.authorRodés, Ángel
dc.contributor.authorDe Vicente Muñoz, Gerardo
dc.contributor.authorPallàs, Raimon
dc.contributor.authorGarcía Castellanos, Daniel
dc.contributor.authorFinlay M., Stuart
dc.contributor.authorRégis, Braucher
dc.contributor.authorDidier, Bourlès
dc.date.accessioned2023-06-20T01:09:14Z
dc.date.available2023-06-20T01:09:14Z
dc.date.issued2012-09-01
dc.description.abstractThe Duero Basin is one of the largest Cenozoic basins in Iberia and contains a relatively well-preserved sedimentary infill. The top of the sedimentary sequence crops out at elevations up to 900 m above sea level. The present-day basin drains to the Atlantic Ocean via the Duero River through the Arribes Gorge, but during the Cenozoic the basin experienced a long endorheic period marked by the formation of evaporites. The time the basin opened to the Atlantic Ocean and the formation of the modern Duero River drainage system remains poorly constrained. In this study we quantify the spatial distribution of river incision within bedrock and sedimentary units by comparing the nearly relict higher reaches with the lower deeply incised reaches of the tributary system. Results show an abrupt increase in stream incision westward, reaching a minimum bedrock incision depth of 600 m in the Arribes Gorge. Using cosmogenic 10Be and 21Ne data we estimate exposure ages for erosion surfaces at various levels in the incised Duero River. The cosmogenic nuclide dataset suggests that the final 2–300 m of fluvial incision in the Arribes Gorge occurred at a rate of 2–3 mm/yr over the last ~ 100 ka.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/69574
dc.identifier.doi10.1016/j.geomorph.2011.12.036
dc.identifier.issn0169-555X
dc.identifier.urihttps://hdl.handle.net/20.500.14352/43350
dc.journal.titleGeomorphology
dc.language.isoeng
dc.page.final61
dc.page.initial50
dc.publisherElsevier Science B.V., Amsterdam
dc.relation.projectIDTOPOIBERIA (CSD2006-00041)
dc.relation.projectIDTOPOIBERIA FORELAND (CGL2006-13926-C02-01-02)
dc.relation.projectIDRISKNAT (2009SGR520)
dc.rights.accessRightsrestricted access
dc.subject.cdu551.3(460)
dc.subject.keywordDrainage
dc.subject.keywordClosed basin
dc.subject.keywordExorheism
dc.subject.keywordBedrock River
dc.subject.keywordBe
dc.subject.keywordNe.
dc.subject.ucmGeodinámica
dc.subject.unesco2507 Geofísica
dc.titleQuantification of fluvial incision in the Duero Basin (NW Iberia) from longitudinal profile analysis and terrestrial cosmogenic nuclide concentrations
dc.typejournal article
dc.volume.number165-66
dspace.entity.typePublication
relation.isAuthorOfPublicationd2462af2-5512-4ceb-afb5-918ef99bf6c6
relation.isAuthorOfPublication.latestForDiscoveryd2462af2-5512-4ceb-afb5-918ef99bf6c6
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