Concentración y fraccionamiento de Tierras Raras en el agua del sistema fluvio-marino del río Tinto (SO de España)
The REE concentration in the water of the Tinto river decreases from the fluvial sector (1098.63 μg·l-1) to the zone of greater marine influence (0.33 μg·l-1) showing a strong longitudinal gradient in the estuarine mixing zone, where conductivity goes from 10 to 50 mS·cm-1 and pH from 3 to 6. The fl...
| Autores: | , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/8703 |
| Acesso em linha: | http://hdl.handle.net/10272/8703 |
| Access Level: | acceso abierto |
| Palavra-chave: | Rare earth elements Acid mine drainage Fractionation pattern Tinto river |
| Resumo: | The REE concentration in the water of the Tinto river decreases from the fluvial sector (1098.63 μg·l-1) to the zone of greater marine influence (0.33 μg·l-1) showing a strong longitudinal gradient in the estuarine mixing zone, where conductivity goes from 10 to 50 mS·cm-1 and pH from 3 to 6. The fluvial sector shows a typical fractionation pattern of acid environments, with a convex morphology centered in the Gd. In agreement we approached the marine sector of the estuary, with conductivities greater than 50 mS·cm-1 and pH bigger than 6, this model evolves towards a fractionation pattern with a clear depletion in LREE that preferably are adsorbed on the particle surfaces |
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