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Lanthanides in granulometric fractions of Mediterranean soils. Can they be used as fingerprints of provenance?

dc.contributor.authorMartín-García, Juan M.
dc.contributor.authorMolinero-García, Alberto
dc.contributor.authorCalero, Julio
dc.contributor.authorFernández-González, María V.
dc.contributor.authorPárraga, Jesús
dc.contributor.authorDelgado, Rafael
dc.date.accessioned2025-01-19T22:21:07Z
dc.date.available2025-01-19T22:21:07Z
dc.date.issued2019-03-01
dc.description.abstractThere is geochemical interest in the lanthanides because they behave like a group that is closely related to the parent materials during surface processes, although they also undergo fractionation as a result of supergene dynamics. We analysed lanthanide concentrations (ICPms) in the granulometric fractions fine sand, clay and free forms of clay (FFclay-CDB and FFclay-Ox: extracted with citrate-dithionite-sodium bicarbonate and with ammonium oxalate, respectively) from a soil chronosequence of Mediterranean soils. There was a relative enrichment of heavy rare earth elements (HREE) in the clay fraction and its free forms with respect to fine sand. The clay free forms behaved as scavengers of lanthanides, and oxidative scavenging of cerium (Ce) in FFclay-CDB was also detected. Lanthanide concentrations (lanthanum to gadolinium in fine sand; terbium to lutetium in clay) varied with soil age, and chronofunctions were established. There was a strong positive collinearity between most of the lanthanide concentrations. Furthermore, the value of the correlation index (Pearson's r) of the concentrations between couples of lanthanides (r(CLC)) decreased significantly with increasing separation between the elements in the periodic table; this has never been described in soils. Several geochemical properties and indices in the fine sand and clay soil fractions and in the geological materials of the Guadalquivir catchment showed, on the one hand, a genetic relation between them all, enabling the lanthanides to be used as fingerprints of provenance; on the other hand, fractionation between fine sand and clay showed these are actively involved in soil lanthanide dynamics.es_ES
dc.description.sponsorshipMinisterio de Economía, Industria y Competitividad de España (Ref. CGL2016-80308-P)es_ES
dc.identifier.citationJ. Martín-García, A. Molinero-García, J. Calero, M.V. Fenández-González, J. Párraga, R. Delgado, "Lanthanides in granulometric fractions of Mediterranean soils. Can they be used as fingerprints of provenance?"es_ES
dc.identifier.issn1351-0754es_ES
dc.identifier.other10.1111/ejss.12730es_ES
dc.identifier.urihttps://bsssjournals.onlinelibrary.wiley.com/doi/10.1111/ejss.12730es_ES
dc.identifier.urihttps://hdl.handle.net/10953/4111
dc.language.isoenges_ES
dc.publisherWileyes_ES
dc.relation.ispartofEuropean Journal of Soil Science [2019]; [70], [394-410]es_ES
dc.rightsCC0 1.0 Universal*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectRare-earth-elementses_ES
dc.subjectLos-Pedroches batholithes_ES
dc.subjectTrace-elementses_ES
dc.subjectBetic cordilleraes_ES
dc.subjectIberian massifes_ES
dc.subjectChronosequencees_ES
dc.subjectSierraes_ES
dc.subjectPatternses_ES
dc.subjectDepositses_ES
dc.subjectGenesises_ES
dc.subject.udc55 Geología y ciencias afines.es_ES
dc.subject.udc63 Agricultura.es_ES
dc.titleLanthanides in granulometric fractions of Mediterranean soils. Can they be used as fingerprints of provenance?es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES

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