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dc.contributor.authorOliva-Urcia, Belénes_ES
dc.contributor.authorMuñoz, A.es_ES
dc.contributor.authorLarrasoaña, Juan C.es_ES
dc.contributor.authorLuzón Aguado, María Aránzazues_ES
dc.contributor.authorPérez, A.es_ES
dc.contributor.authorGonzález, A.es_ES
dc.contributor.authorJiang, Z.es_ES
dc.contributor.authorLiu, Q.es_ES
dc.contributor.authorRomán-Berdiel, T.es_ES
dc.date.accessioned2016-08-25T08:34:19Z-
dc.date.available2016-08-25T08:34:19Z-
dc.date.issued2016-06-
dc.identifier.citationGeologica Acta, 14(2): 139-154 (2016)es_ES
dc.identifier.issn1695-6133-
dc.identifier.urihttp://hdl.handle.net/10261/135881-
dc.description.abstractEnvironmental magnetic proxies were analyzed in a relatively monotonous, ~25.3m thick alluvial sedimentary sequence drilled in the Añavieja Basin (NE Spain). Results from the core AÑ2 suggest that the concentration dependent magnetic parameters mainly reflect variations in the content of detrital magnetite, sourced in the catchment rocks and soils of the basin, via changes in the dynamics of alluvial fans due to temperature changes in the northern hemisphere during the Late Pleistocene. The correspondence between the magnetic proxies and the temperature variations in the North Atlantic region (NGRIP curve) indicates that higher (lower) concentrations and finer (coarser) magnetite grains coincide with warm (cold) periods. We propose that during cold periods, a sparser vegetation cover favored the incoming of higher energy runoff bearing coarser sediments to the basin that are relatively impoverished in magnetite. In contrast, during warm periods, the wider distribution of the vegetation cover associated with the lower runoff energy lead to finer, magnetite-richer sediment input to the basin. Maghemite, presumably of pedogenic origin, appears to be present also in the studied alluvial sediments. Further studies are necessary to unravel its palaeoclimatic significance. © 2016, Universitat de Barcelona. All rights reserved.es_ES
dc.description.sponsorshipThis study has been supported by research projects CGL2009-09165/BTE and CGL2009-08969, funded by the Ministerio de Ciencia e Innovación from Spain and FEDER UZ 2008-CIE-12.es_ES
dc.language.isoenges_ES
dc.publisherUniversidad de Barcelonaes_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectAlluvial sequencees_ES
dc.subjectAñavieja Basines_ES
dc.subjectEnvironmental magnetismes_ES
dc.subjectMagnetitees_ES
dc.subjectNGRIP curvees_ES
dc.subjectTemperatureses_ES
dc.subjectVegetation coveres_ES
dc.titleResponse of alluvial systems to Late Pleistocene climate changes recorded by environmental magnetism in the Añavieja Basin (Iberian range, NE Spain)es_ES
dc.typeartículoes_ES
dc.identifier.doi10.1344/GeologicaActa2016.14.2.4-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org710.1344/GeologicaActa2016.14.2.4es_ES
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100004837es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
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item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
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