Geochemical characterization of surficial sediments from the southwestern Iberian continental shelf

Geochemical characterization of surficial sediments from the southwestern Iberian continental shelf

The impact of trace elements (Ba, Nb, Zr, Y, Sr, Rb, Pb, As, Zn, Cu, Ni, Co, Cr, V, La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) transported by the Guadiana, Tinto-Odiel and Guadalquivir rivers on sediments from the southwestern Iberian continental shelf has been studied. Shelf surficial sediments from three...

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Autores principales: Machado, A, Rocha, F, Araújo, MF, Vitali, F, Gomes, C, Dias, JA
Formáid: info:eu-repo/semantics/article
Teanga:eng
Foilsithe: Iniversidad Autónoma de Baja California 2005
Ábhair:
trace elements
rate earth elements
fine sediments
continental shelf
Iberian Peninsula
elementos traza
tierras raras (REE)
sedimentos finos
plataforma continental
Península Ibérica
Rochtain Ar Líne:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/98
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Achoimre:The impact of trace elements (Ba, Nb, Zr, Y, Sr, Rb, Pb, As, Zn, Cu, Ni, Co, Cr, V, La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) transported by the Guadiana, Tinto-Odiel and Guadalquivir rivers on sediments from the southwestern Iberian continental shelf has been studied. Shelf surficial sediments from three transects established right in front of the river estuaries were characterized by specific signatures relative to those trace elements. The Guadiana transect shows high Zr concentration values; the Tinto-Odiel transect shows high heavy metal (Pb, As, Zn and Cu) concentration values; and the Guadalquivir transect shows high Sr concentration values. Data from the statistical analysis indicate three distinct sources for trace elements: lithogenic, biogenic and anthropogenic.

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