Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)

4 sequence of acid to basic igneous rocks is exposed within Neoproterozoic sediments of the Narcea Antiform (N of the Iberian Variscan Belt). Volcanic and volcanoclastic rocks, classically known as 'porphyroids', are rhyolites to andesites in composition. Cranodioritic to quartz-di...

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Detalhes bibliográficos
Autores: Cuesta, Andrés, Gallastegui, G., Suárez Hernando, Oier, Rubio Ordóñez, Álvaro
Tipo de documento: artigo
Data de publicação:2004
País:España
Recursos:Universidad de Huelva (UHU)
Repositório:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:espanhol
OAI Identifier:oai:ariasmontano.uhu.es:10272/8945
Acesso em linha:http://hdl.handle.net/10272/8945
Access Level:Acceso aberto
Palavra-chave:Volcanism
Plutonism
Calc-alkaline magmatism
Neoproterozoic
Narcea Antiform
Iberian Massif
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spelling Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)Neoproterozoic calc-alkaline magmatism in the Narcea Antiform (N of Spain)Cuesta, AndrésGallastegui, G.Suárez Hernando, OierRubio Ordóñez, ÁlvaroVolcanismPlutonismCalc-alkaline magmatismNeoproterozoicNarcea AntiformIberian Massif4 sequence of acid to basic igneous rocks is exposed within Neoproterozoic sediments of the Narcea Antiform (N of the Iberian Variscan Belt). Volcanic and volcanoclastic rocks, classically known as 'porphyroids', are rhyolites to andesites in composition. Cranodioritic to quartz-dioritic or gabbroic rocks are intrusive into the metasedimentary sequence and the volcanic rocks. Finally, hypabissal basaltic dykes are found cross cutting both the extrusive and intrusive rocks. The best outcrops of igneous rocks occur along the Tineo-Cilldn area forming, near Tineo, a continuous sequence ca. 350 m thick of volcanic-volcanoclastic units and basaltic dykes. Original igneous textures are preserved where deformational processes barely affected the sequence, whereas secondary mineral assemblages - spilitized rocks - reflect hydrothermal and/or metasomatic processes. Whole rock composition of the igneous rocks has a calc-alkaline affinity and reflects a crustally contaminated mantle signatureSociedad Geológica de España20042004-01-0120042004-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/8945reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/89452026-06-02T14:58:11Z
dc.title.none.fl_str_mv Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
Neoproterozoic calc-alkaline magmatism in the Narcea Antiform (N of Spain)
title Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
spellingShingle Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
Cuesta, Andrés
Volcanism
Plutonism
Calc-alkaline magmatism
Neoproterozoic
Narcea Antiform
Iberian Massif
title_short Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
title_full Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
title_fullStr Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
title_full_unstemmed Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
title_sort Magmatismo Neoproterozoico calcoalcalino en el Antiforme del Narcea (N de España)
dc.creator.none.fl_str_mv Cuesta, Andrés
Gallastegui, G.
Suárez Hernando, Oier
Rubio Ordóñez, Álvaro
author Cuesta, Andrés
author_facet Cuesta, Andrés
Gallastegui, G.
Suárez Hernando, Oier
Rubio Ordóñez, Álvaro
author_role author
author2 Gallastegui, G.
Suárez Hernando, Oier
Rubio Ordóñez, Álvaro
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Volcanism
Plutonism
Calc-alkaline magmatism
Neoproterozoic
Narcea Antiform
Iberian Massif
topic Volcanism
Plutonism
Calc-alkaline magmatism
Neoproterozoic
Narcea Antiform
Iberian Massif
description 4 sequence of acid to basic igneous rocks is exposed within Neoproterozoic sediments of the Narcea Antiform (N of the Iberian Variscan Belt). Volcanic and volcanoclastic rocks, classically known as 'porphyroids', are rhyolites to andesites in composition. Cranodioritic to quartz-dioritic or gabbroic rocks are intrusive into the metasedimentary sequence and the volcanic rocks. Finally, hypabissal basaltic dykes are found cross cutting both the extrusive and intrusive rocks. The best outcrops of igneous rocks occur along the Tineo-Cilldn area forming, near Tineo, a continuous sequence ca. 350 m thick of volcanic-volcanoclastic units and basaltic dykes. Original igneous textures are preserved where deformational processes barely affected the sequence, whereas secondary mineral assemblages - spilitized rocks - reflect hydrothermal and/or metasomatic processes. Whole rock composition of the igneous rocks has a calc-alkaline affinity and reflects a crustally contaminated mantle signature
publishDate 2004
dc.date.none.fl_str_mv 2004
2004-01-01
2004
2004-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/8945
url http://hdl.handle.net/10272/8945
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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