REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)

The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were s...

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Autores: Prudêncio, Maria Isabel, Ruiz, Francisco, Marques, Rosa, Dias, Maria Isabel, Rodriguez Vidal, Joaquín, Rodrigues, Ana Luisa, Cáceres, Luis Miguel, González-Regalado, María Luz, Muñoz, Juan Manuel, Pozo Rodríguez, Manuel, Gómez, Paula, Toscano, Antonio, Abad, Manuel, Izquierdo, Tatiana, Arroyo, Marta, Romero, Verónica, Gómez, Gabriel
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/705351
Acceso en línea:http://hdl.handle.net/10486/705351
https://dx.doi.org/10.3390/min12040417
Access Level:acceso abierto
Palabra clave:rare earth elements
estuarine sediments cores
sedimentary facies
acid drainage
paleoenvironmental reconstruction
Tinto River
Geología
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spelling REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)Prudêncio, Maria IsabelRuiz, FranciscoMarques, RosaDias, Maria IsabelRodriguez Vidal, JoaquínRodrigues, Ana LuisaCáceres, Luis MiguelGonzález-Regalado, María LuzMuñoz, Juan ManuelPozo Rodríguez, ManuelGómez, PaulaToscano, AntonioAbad, ManuelIzquierdo, TatianaArroyo, MartaRomero, VerónicaGómez, Gabrielrare earth elementsestuarine sediments coressedimentary faciesacid drainagepaleoenvironmental reconstructionTinto RiverGeologíaThe Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REEMPDIDepartamento de Geología y GeoquímicaFacultad de Ciencias20222022-03-29research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/705351https://dx.doi.org/10.3390/min12040417reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7053512026-06-23T12:46:27Z
dc.title.none.fl_str_mv REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
title REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
spellingShingle REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
Prudêncio, Maria Isabel
rare earth elements
estuarine sediments cores
sedimentary facies
acid drainage
paleoenvironmental reconstruction
Tinto River
Geología
title_short REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
title_full REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
title_fullStr REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
title_full_unstemmed REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
title_sort REE geochemistry of neogene–holocene sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
dc.creator.none.fl_str_mv Prudêncio, Maria Isabel
Ruiz, Francisco
Marques, Rosa
Dias, Maria Isabel
Rodriguez Vidal, Joaquín
Rodrigues, Ana Luisa
Cáceres, Luis Miguel
González-Regalado, María Luz
Muñoz, Juan Manuel
Pozo Rodríguez, Manuel
Gómez, Paula
Toscano, Antonio
Abad, Manuel
Izquierdo, Tatiana
Arroyo, Marta
Romero, Verónica
Gómez, Gabriel
author Prudêncio, Maria Isabel
author_facet Prudêncio, Maria Isabel
Ruiz, Francisco
Marques, Rosa
Dias, Maria Isabel
Rodriguez Vidal, Joaquín
Rodrigues, Ana Luisa
Cáceres, Luis Miguel
González-Regalado, María Luz
Muñoz, Juan Manuel
Pozo Rodríguez, Manuel
Gómez, Paula
Toscano, Antonio
Abad, Manuel
Izquierdo, Tatiana
Arroyo, Marta
Romero, Verónica
Gómez, Gabriel
author_role author
author2 Ruiz, Francisco
Marques, Rosa
Dias, Maria Isabel
Rodriguez Vidal, Joaquín
Rodrigues, Ana Luisa
Cáceres, Luis Miguel
González-Regalado, María Luz
Muñoz, Juan Manuel
Pozo Rodríguez, Manuel
Gómez, Paula
Toscano, Antonio
Abad, Manuel
Izquierdo, Tatiana
Arroyo, Marta
Romero, Verónica
Gómez, Gabriel
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Geología y Geoquímica
Facultad de Ciencias
dc.subject.none.fl_str_mv rare earth elements
estuarine sediments cores
sedimentary facies
acid drainage
paleoenvironmental reconstruction
Tinto River
Geología
topic rare earth elements
estuarine sediments cores
sedimentary facies
acid drainage
paleoenvironmental reconstruction
Tinto River
Geología
description The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-03-29
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/705351
https://dx.doi.org/10.3390/min12040417
url http://hdl.handle.net/10486/705351
https://dx.doi.org/10.3390/min12040417
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MPDI
publisher.none.fl_str_mv MPDI
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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