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DIGITAL.CSIC
Article . 2008 . Peer-reviewed
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Mineralogía y elementos de los sedimentos actuales del río Llobregat (Barcelona)

Authors: BALLBE LLONCH, E.; QUERALT, I.;

Mineralogía y elementos de los sedimentos actuales del río Llobregat (Barcelona)

Abstract

[EN] The object of the present work is to build on our existing knowledge of the mineralogical evolution and the distribution of heavy metals in the sediments presently existing in the river Llobregat (Barcelona, Spain). The mineralogical analysis was carried out by means of X-ray diffraction. The levels of concentration of Ba, Pb, Cr, Cu, Ni, Rb, Sr and Zn have been determined by means of X-ray fluorescence spectrometry. The results obtained enable us to observe a marked increase of the heavy meta1 content towards the lower course of the river, which may be attributed to the greater contamination level. Pb and Cu demonstrate a notable ~losenessin their geochemical behaviour whilst other contaminants such as Zn and Cr follow a different pattern of deposition, including a noticeable increase in concentration in the mouth of the river.

[ES] El objetivo del presente trabajo es la adquisición de conocimientos previos acerca de la evolución mineralógica y de la distribución de elementos pesados en los sedimentos actuales del rio Llobregat (Barcelona, España). El análisis mineralógico se ha realizado por difracción de rayos X. Las concentraciones de Ba, Pb, Cr, Cu, Ni, Rb, Sr y Zn han sido determinadas por medio de espectrometria de fluorescencia de rayos X. Los resultados obtenidos permiten apreciar un marcado aumento del contenido en elementos pesados hacia el curso bajo el rio atribuible al mayor grado de contaminación. Pb y Cu presentan una notable relación en su comportamiento geoquirnico mientras que otros elementos contaminantes como Zn y Cr, con notable aumento en la desembocadura del rio, siguen una distinta dinámica de reparto.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Minerales de arcilla, Clay minerals, River sediments, Sedimentos fluviales, Heavy metals, Elementos pesados

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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