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REE anomalies as indicator of phosphogypsum wastes pollution in the Tinto and Odiel river estuary (SW Spain)

dc.contributor.authorLópez González, Nieves 
dc.contributor.authorBorrego Flores, José 
dc.contributor.authorCarro Flores, Berta 
dc.contributor.authorLozano Soria, O.
dc.description.abstractIn two cores in the Odiel and Tinto river estuary, Sc, Y, Th and Cu concentrations show a significant increase in the intermediate levels, between 10 and 40 cm depth. Vertical evolution patterns for Sc, Y, Cu and heavy rare earth (HREE) are similar, and contrary to those shown by Th, light REE (LREE) and middle REE (MREE). Samples of the intermediate levels of the cores show significant enrichment of REE relative to North American Shale Composite (NASC) and high values in the (La/Gd)NASC and (La/Yb)NASC ratios. These anomalies in the fractionation patterns caused by enrichments in LREE and MREE concentrations are related to the presence of high concentrations of Th. They were generated by effluents from fertilizer factories between 1968 and 1998 which used phosphorite as source materialen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.subject.otherRare Earth Elementen_US
dc.subject.otherPhosfogypsum wasteen_US
dc.subject.otherAcid mine drainageen_US
dc.subject.otherOdiel and Tinto estuaryen_US
dc.titleAnomalías en REE como indicador de contaminación por vertidos de fosfoyesos en el estuario de los ríos Tinto y Odiel (SO de España)en_US
dc.titleREE anomalies as indicator of phosphogypsum wastes pollution in the Tinto and Odiel river estuary (SW Spain)eng

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