000060624 001__ 60624
000060624 005__ 20231006143251.0
000060624 0247_ $$2doi$$a10.1344/GeologicaActa2016.14.2.4
000060624 0248_ $$2sideral$$a97998
000060624 037__ $$aART-2016-97998
000060624 041__ $$aeng
000060624 100__ $$0(orcid)0000-0003-1563-6434$$aOliva-Urcia, B.
000060624 245__ $$aResponse of alluvial systems to Late Pleistocene climate changes recorded by environmental magnetism in the Añavieja Basin (Iberian Range, NE Spain)
000060624 260__ $$c2016
000060624 5060_ $$aAccess copy available to the general public$$fUnrestricted
000060624 5203_ $$aEnvironmental magnetic proxies were analyzed in a relatively monotonous, ~25.3m thick alluvial sedimentary sequence drilled in the Añavieja Basin (NE Spain). Results from the core AÑ2 suggest that the concentration dependent magnetic parameters mainly reflect variations in the content of detrital magnetite, sourced in the catchment rocks and soils of the basin, via changes in the dynamics of alluvial fans due to temperature changes in the northern hemisphere during the Late Pleistocene. The correspondence between the magnetic proxies and the temperature variations in the North Atlantic region (NGRIP curve) indicates that higher (lower) concentrations and finer (coarser) magnetite grains coincide with warm (cold) periods. We propose that during cold periods, a sparser vegetation cover favored the incoming of higher energy runoff bearing coarser sediments to the basin that are relatively impoverished in magnetite. In contrast, during warm periods, the wider distribution of the vegetation cover associated with the lower runoff energy lead to finer, magnetite-richer sediment input to the basin. Maghemite, presumably of pedogenic origin, appears to be present also in the studied alluvial sediments. Further studies are necessary to unravel its palaeoclimatic significance.
000060624 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E28$$9info:eu-repo/grantAgreement/ES/DGA/E68$$9info:eu-repo/grantAgreement/ES/FEDER/UZ-2008-CIE-12$$9info:eu-repo/grantAgreement/ES/MICINN/CGL2009-08969$$9info:eu-repo/grantAgreement/ES/MICINN/CGL2009-09165-BTE
000060624 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-sa$$uhttp://creativecommons.org/licenses/by-nc-sa/3.0/es/
000060624 590__ $$a0.86$$b2016
000060624 591__ $$aGEOLOGY$$b27 / 47 = 0.574$$c2016$$dQ3$$eT2
000060624 592__ $$a0.54$$b2016
000060624 593__ $$aGeology$$c2016$$dQ2
000060624 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000060624 700__ $$0(orcid)0000-0001-5700-6495$$aMuñoz, A.$$uUniversidad de Zaragoza
000060624 700__ $$0(orcid)0000-0001-6527-3972$$aLarrasoaña, J.C.$$uUniversidad de Zaragoza
000060624 700__ $$0(orcid)0000-0002-8929-9429$$aLuzón, A.$$uUniversidad de Zaragoza
000060624 700__ $$0(orcid)0000-0001-6285-2522$$aPérez, A.$$uUniversidad de Zaragoza
000060624 700__ $$0(orcid)0000-0002-0117-8279$$aGonzalez, Á.$$uUniversidad de Zaragoza
000060624 700__ $$aJiang, Z.
000060624 700__ $$aLiu, Q.
000060624 700__ $$0(orcid)0000-0002-9743-8695$$aRomán-Berdiel, T.$$uUniversidad de Zaragoza
000060624 7102_ $$12000$$2280$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Estratigrafía
000060624 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000060624 773__ $$g14, 2 (2016), 139-154$$pGeol. acta$$tGeologica Acta$$x1695-6133
000060624 8564_ $$s1657086$$uhttps://zaguan.unizar.es/record/60624/files/texto_completo.pdf$$yVersión publicada
000060624 8564_ $$s87003$$uhttps://zaguan.unizar.es/record/60624/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000060624 909CO $$ooai:zaguan.unizar.es:60624$$particulos$$pdriver
000060624 951__ $$a2023-10-06-14:05:56
000060624 980__ $$aARTICLE