The Holocene volcanism at El Hierro: Insights from petrology and geochemistry

The Holocene volcanism at El Hierro consists of basaltic monogenetic volcanic fields associated with o the three rift systems present in this island. In this work we report preliminary petrological and geochemical data of Holocene lava flows belonging to the WNW-striking rift. Sampling was focused i...

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Autores: Aulinas, M., Domínguez, D., Rodríguez-González, A., Carmona, H., Fernandez-Turiel, J. L., Pérez-Torrado, Francisco J., Carracedo, Juan Carlos, Arienzo, I., D'Antonio, M.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/189939
Acesso em linha:http://hdl.handle.net/10261/189939
Access Level:Acceso aberto
Palavra-chave:El Hierro
Geochemistry
Holocene
Petrology
Volcanism
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spelling The Holocene volcanism at El Hierro: Insights from petrology and geochemistryEl volcanismo holoceno en El Hierro: petrología y geoquímicaAulinas, M.Domínguez, D.Rodríguez-González, A.Carmona, H.Fernandez-Turiel, J. L.Pérez-Torrado, Francisco J.Carracedo, Juan CarlosArienzo, I.D'Antonio, M.El HierroGeochemistryHolocenePetrologyVolcanismThe Holocene volcanism at El Hierro consists of basaltic monogenetic volcanic fields associated with o the three rift systems present in this island. In this work we report preliminary petrological and geochemical data of Holocene lava flows belonging to the WNW-striking rift. Sampling was focused in three zones: Orchilla, Verodal-Sabinosa, and Tanganasoga. Petrography of the studied lavas shows that they are homogeneous. All samples are porphyritic with macrocrysts of clinopyroxene and olivine immersed in a groundmass formed by microcrysts of plagioclase, Fe-Ti oxides and clinopyroxene. Clinopyroxenes are diopsides, olivines have forsterite contents ranging from 74 to 84 % and anorthite in plagioclase varies from 66 to 76% (labradorite). Whole-rock geochemical results evidence that all magmas are basic in composition, ranging from picrobasalts to phonotephrites. Major, trace elements and isotope support fractional crystallization as the main process of magma evolution. However, petrography and chemistry of clinopyroxene cores agree with a xenocrystic nature of some of them. We suggest that these clinopyroxene cores crystallized from a genetically related magma and subsequently were entrapped or cannibalized by the basic rising magmas. © 2019 Sociedad Geologica de Espana. All rights reserved.This work has been funded by the Agencia Canaria de Investigación, Innovación y Sociedad de la Información (Sol-SubC200801000047). It was carried out in the framework of the Research Consolidated Groups GEOVOL (Canary Islands Government, ULPGC) and GEOPAM (Generalitat de Catalunya, 2017 SGR 1494).Peer reviewedSociedad Geológica de EspañaAgencia Canaria de Investigación, Innovación y Sociedad de la InformaciónGeneralitat de CatalunyaFernandez-Turiel, J. L. [0000-0002-4383-799X]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/189939reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://www.sociedadgeologica.es/archivos/geogacetas/geo65/Geo65_09.pdfSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1899392026-05-22T06:33:51Z
dc.title.none.fl_str_mv The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
El volcanismo holoceno en El Hierro: petrología y geoquímica
title The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
spellingShingle The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
Aulinas, M.
El Hierro
Geochemistry
Holocene
Petrology
Volcanism
title_short The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
title_full The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
title_fullStr The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
title_full_unstemmed The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
title_sort The Holocene volcanism at El Hierro: Insights from petrology and geochemistry
dc.creator.none.fl_str_mv Aulinas, M.
Domínguez, D.
Rodríguez-González, A.
Carmona, H.
Fernandez-Turiel, J. L.
Pérez-Torrado, Francisco J.
Carracedo, Juan Carlos
Arienzo, I.
D'Antonio, M.
author Aulinas, M.
author_facet Aulinas, M.
Domínguez, D.
Rodríguez-González, A.
Carmona, H.
Fernandez-Turiel, J. L.
Pérez-Torrado, Francisco J.
Carracedo, Juan Carlos
Arienzo, I.
D'Antonio, M.
author_role author
author2 Domínguez, D.
Rodríguez-González, A.
Carmona, H.
Fernandez-Turiel, J. L.
Pérez-Torrado, Francisco J.
Carracedo, Juan Carlos
Arienzo, I.
D'Antonio, M.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Canaria de Investigación, Innovación y Sociedad de la Información
Generalitat de Catalunya
Fernandez-Turiel, J. L. [0000-0002-4383-799X]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv El Hierro
Geochemistry
Holocene
Petrology
Volcanism
topic El Hierro
Geochemistry
Holocene
Petrology
Volcanism
description The Holocene volcanism at El Hierro consists of basaltic monogenetic volcanic fields associated with o the three rift systems present in this island. In this work we report preliminary petrological and geochemical data of Holocene lava flows belonging to the WNW-striking rift. Sampling was focused in three zones: Orchilla, Verodal-Sabinosa, and Tanganasoga. Petrography of the studied lavas shows that they are homogeneous. All samples are porphyritic with macrocrysts of clinopyroxene and olivine immersed in a groundmass formed by microcrysts of plagioclase, Fe-Ti oxides and clinopyroxene. Clinopyroxenes are diopsides, olivines have forsterite contents ranging from 74 to 84 % and anorthite in plagioclase varies from 66 to 76% (labradorite). Whole-rock geochemical results evidence that all magmas are basic in composition, ranging from picrobasalts to phonotephrites. Major, trace elements and isotope support fractional crystallization as the main process of magma evolution. However, petrography and chemistry of clinopyroxene cores agree with a xenocrystic nature of some of them. We suggest that these clinopyroxene cores crystallized from a genetically related magma and subsequently were entrapped or cannibalized by the basic rising magmas. © 2019 Sociedad Geologica de Espana. All rights reserved.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/189939
url http://hdl.handle.net/10261/189939
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://www.sociedadgeologica.es/archivos/geogacetas/geo65/Geo65_09.pdf
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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