Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone

The Cantabrian Zone of NW Iberia preserves a voluminous, almost continuous, sedimentary sequence that ranges in age from Ediacaran to Early Permian. Its tectonic setting is controversial and recent hypotheses include (i) passive margin deposition along the northern margin of Gondwana, (ii) an active...

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Autores: Pastor-Galán, Daniel, Gutiérrez-Alonso, Gabriel, Fernández-Suárez, Javier, Murphy, J. Brendan, Nieto, Fernando
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/345340
Acceso en línea:http://hdl.handle.net/10261/345340
https://api.elsevier.com/content/abstract/scopus_id/84887325593
Access Level:acceso abierto
Palabra clave:Cantabrian Zone | Gondwana margin | Orocline | Paleozoic passive margin | Rheic Ocean
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spelling Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian ZonePastor-Galán, DanielGutiérrez-Alonso, GabrielFernández-Suárez, JavierMurphy, J. BrendanNieto, FernandoCantabrian Zone | Gondwana margin | Orocline | Paleozoic passive margin | Rheic OceanThe Cantabrian Zone of NW Iberia preserves a voluminous, almost continuous, sedimentary sequence that ranges in age from Ediacaran to Early Permian. Its tectonic setting is controversial and recent hypotheses include (i) passive margin deposition along the northern margin of Gondwana, (ii) an active continental margin, or (iii) the margin of a drifting ribbon continent and (iv) a combination of the three aforementioned possibilities. In this paper we present geochemical data from 21 samples taken in detrital rocks in the Cantabrian Zone from Ediacaran to Early Permian age. The results, together with previously published detrital zircon ages from these strata, allow a comprehensive analysis of changing tectonic scenarios and provenance through time. Collectively, these data indicate that this portion of Iberia was an active margin during the Ediacaran that evolved to become part of the passive margin of Gondwana at least from Ordovician to Late Devonian times. Changes in geochemistry, zircon age distribution and Sm/Nd isotopes during the Carboniferous are attributed to the far-field effects of the onset of the collision between Gondwana and Laurussia, and related processes such as recycling of older sedimentary sequences, as well as the involvement of the rocks formed during the Variscan orogeny and oroclinal buckling. Latest Carboniferous and Permian show a more juvenile Sm/Nd and higher values of illite cristallinity that may support the hypothesis of lithospheric foundering after oroclinal buckling. © 2013 Elsevier B.V.This work is part of IGCP 574 and IGCP 597 projects from the UNESCO. Research Projects ODRE II (“Oroclines and Delamination: Relations and Effects”) No. CGL2009-1367, from the Spanish Ministry of Science and Innovation, and N.S.E.R.C., Canada funded this research. JFS wishes to acknowledge financial support from project GCL2012-34618 by the Spanish Ministerio de Economia y Competitividad. Critical reviews from Dov Avigad and an anonymous reviewer helped to improve the manuscript.Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Ministerio de Economía y Competitividad (España)Pastor-Galán, Daniel [0000-0002-0226-2739]Gutiérrez-Alonso, Gabriel [0000-0002-4370-4580]Fernández-Suárez, Javier [0000-0002-7429-2865]Murphy, J. Brendan [0000-0003-2269-1976]Nieto, Fernando [0000-0001-6250-056X]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/345340https://api.elsevier.com/content/abstract/scopus_id/84887325593reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#CGL2009-1367GCL2012-34618LithosSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3453402026-05-22T06:33:51Z
dc.title.none.fl_str_mv Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
title Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
spellingShingle Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
Pastor-Galán, Daniel
Cantabrian Zone | Gondwana margin | Orocline | Paleozoic passive margin | Rheic Ocean
title_short Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
title_full Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
title_fullStr Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
title_full_unstemmed Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
title_sort Tectonic evolution of NW Iberia during the Paleozoic inferred from the geochemical record of detrital rocks in the Cantabrian Zone
dc.creator.none.fl_str_mv Pastor-Galán, Daniel
Gutiérrez-Alonso, Gabriel
Fernández-Suárez, Javier
Murphy, J. Brendan
Nieto, Fernando
author Pastor-Galán, Daniel
author_facet Pastor-Galán, Daniel
Gutiérrez-Alonso, Gabriel
Fernández-Suárez, Javier
Murphy, J. Brendan
Nieto, Fernando
author_role author
author2 Gutiérrez-Alonso, Gabriel
Fernández-Suárez, Javier
Murphy, J. Brendan
Nieto, Fernando
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Ministerio de Economía y Competitividad (España)
Pastor-Galán, Daniel [0000-0002-0226-2739]
Gutiérrez-Alonso, Gabriel [0000-0002-4370-4580]
Fernández-Suárez, Javier [0000-0002-7429-2865]
Murphy, J. Brendan [0000-0003-2269-1976]
Nieto, Fernando [0000-0001-6250-056X]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cantabrian Zone | Gondwana margin | Orocline | Paleozoic passive margin | Rheic Ocean
topic Cantabrian Zone | Gondwana margin | Orocline | Paleozoic passive margin | Rheic Ocean
description The Cantabrian Zone of NW Iberia preserves a voluminous, almost continuous, sedimentary sequence that ranges in age from Ediacaran to Early Permian. Its tectonic setting is controversial and recent hypotheses include (i) passive margin deposition along the northern margin of Gondwana, (ii) an active continental margin, or (iii) the margin of a drifting ribbon continent and (iv) a combination of the three aforementioned possibilities. In this paper we present geochemical data from 21 samples taken in detrital rocks in the Cantabrian Zone from Ediacaran to Early Permian age. The results, together with previously published detrital zircon ages from these strata, allow a comprehensive analysis of changing tectonic scenarios and provenance through time. Collectively, these data indicate that this portion of Iberia was an active margin during the Ediacaran that evolved to become part of the passive margin of Gondwana at least from Ordovician to Late Devonian times. Changes in geochemistry, zircon age distribution and Sm/Nd isotopes during the Carboniferous are attributed to the far-field effects of the onset of the collision between Gondwana and Laurussia, and related processes such as recycling of older sedimentary sequences, as well as the involvement of the rocks formed during the Variscan orogeny and oroclinal buckling. Latest Carboniferous and Permian show a more juvenile Sm/Nd and higher values of illite cristallinity that may support the hypothesis of lithospheric foundering after oroclinal buckling. © 2013 Elsevier B.V.
publishDate 2013
dc.date.none.fl_str_mv 2013
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/345340
https://api.elsevier.com/content/abstract/scopus_id/84887325593
url http://hdl.handle.net/10261/345340
https://api.elsevier.com/content/abstract/scopus_id/84887325593
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
CGL2009-1367
GCL2012-34618
Lithos
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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