Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula

The abundance and distribution of rare earth elements (REE) and their signatures in the Vigo Ria were studied from 50 samples of surface sediments and related to the geological formation in its watershed. The total amount of REE in the Ria is heterogeneous. It ranges from 220mg kg1 in the southern m...

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Detalhes bibliográficos
Autores: Prego, Ricardo, Caetano, Miguel, Vale, Carlos, Marmolejo Rodríguez, Ana Judith
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:México
Recursos:Instituto Politécnico Nacional
Repositorio:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/12830
Acesso em linha:http://www.repositoriodigital.ipn.mx/handle/123456789/12830
Access Level:acceso abierto
Palavra-chave:REE
tracer
sediment
Coastal Zone
Lanthanides
Spain
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oai_identifier_str oai:www.repositoriodigital.ipn.mx:123456789/12830
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spelling Rare earth elements in sediments of the Vigo Ria, NW Iberian PeninsulaPrego, RicardoCaetano, MiguelVale, CarlosMarmolejo Rodríguez, Ana JudithREEtracersedimentCoastal ZoneLanthanidesSpainThe abundance and distribution of rare earth elements (REE) and their signatures in the Vigo Ria were studied from 50 samples of surface sediments and related to the geological formation in its watershed. The total amount of REE in the Ria is heterogeneous. It ranges from 220mg kg1 in the southern middle Ria margin in the vicinity of the Galin˜eiro geological shore complex, which contains REE-enriched minerals, to 2mg kg1 near the Ria mouth due to dilution with high levels of carbonated biogenic particles (31% of Ca). Rare earth elements of the Ria sediments are considerably enriched in light-REE relative to heavy-REE (a LREE/HREE ratio of 9.771.6) and also show a slightly negative Eu-anomaly. Low European shale normalised REE patterns were distinguished in the innermost sediments of Vigo Ria, but were not correlated with Al. This suggests a minor contribution of REE from upstream freshwater inputs to the sediments in the middle Vigo Ria zone. Normalised REE ratios in the middle Ria imply that fine particles enriched in REE may be exported from the Ria to shelf mud patches and REE can be useful as sediment tracers of Ria input on the shelf.Instituto Politécnico Nacional (IPN). Centro Interdisciplinario de Ciencias MarinasCiencias marinasPDFContinental Shelf Research2013-02-15T16:07:33Z2013-02-15T16:07:33Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0278-4343http://www.repositoriodigital.ipn.mx/handle/123456789/12830reponame:Repositorio Digital del IPNinstname:Instituto Politécnico Nacionalinstacron:IPNen_USinfo:eu-repo/semantics/openAccessoai:www.repositoriodigital.ipn.mx:123456789/128302026-02-18T16:42:20Z
dc.title.none.fl_str_mv Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
title Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
spellingShingle Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
Prego, Ricardo
REE
tracer
sediment
Coastal Zone
Lanthanides
Spain
title_short Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
title_full Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
title_fullStr Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
title_full_unstemmed Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
title_sort Rare earth elements in sediments of the Vigo Ria, NW Iberian Peninsula
dc.creator.none.fl_str_mv Prego, Ricardo
Caetano, Miguel
Vale, Carlos
Marmolejo Rodríguez, Ana Judith
author Prego, Ricardo
author_facet Prego, Ricardo
Caetano, Miguel
Vale, Carlos
Marmolejo Rodríguez, Ana Judith
author_role author
author2 Caetano, Miguel
Vale, Carlos
Marmolejo Rodríguez, Ana Judith
author2_role author
author
author
dc.subject.none.fl_str_mv REE
tracer
sediment
Coastal Zone
Lanthanides
Spain
topic REE
tracer
sediment
Coastal Zone
Lanthanides
Spain
description The abundance and distribution of rare earth elements (REE) and their signatures in the Vigo Ria were studied from 50 samples of surface sediments and related to the geological formation in its watershed. The total amount of REE in the Ria is heterogeneous. It ranges from 220mg kg1 in the southern middle Ria margin in the vicinity of the Galin˜eiro geological shore complex, which contains REE-enriched minerals, to 2mg kg1 near the Ria mouth due to dilution with high levels of carbonated biogenic particles (31% of Ca). Rare earth elements of the Ria sediments are considerably enriched in light-REE relative to heavy-REE (a LREE/HREE ratio of 9.771.6) and also show a slightly negative Eu-anomaly. Low European shale normalised REE patterns were distinguished in the innermost sediments of Vigo Ria, but were not correlated with Al. This suggests a minor contribution of REE from upstream freshwater inputs to the sediments in the middle Vigo Ria zone. Normalised REE ratios in the middle Ria imply that fine particles enriched in REE may be exported from the Ria to shelf mud patches and REE can be useful as sediment tracers of Ria input on the shelf.
publishDate 2009
dc.date.none.fl_str_mv 2009
2013-02-15T16:07:33Z
2013-02-15T16:07:33Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0278-4343
http://www.repositoriodigital.ipn.mx/handle/123456789/12830
identifier_str_mv 0278-4343
url http://www.repositoriodigital.ipn.mx/handle/123456789/12830
dc.language.none.fl_str_mv en_US
language_invalid_str_mv en_US
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Continental Shelf Research
publisher.none.fl_str_mv Continental Shelf Research
dc.source.none.fl_str_mv reponame:Repositorio Digital del IPN
instname:Instituto Politécnico Nacional
instacron:IPN
instname_str Instituto Politécnico Nacional
instacron_str IPN
institution IPN
reponame_str Repositorio Digital del IPN
collection Repositorio Digital del IPN
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858177594279591936
score 15,811543

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