Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited

An integrated interpretation of the late Paleozoic structural and geochronological record of the Iberian Massif is presented and discussed under the perspective of a Gondwana-Laurussia collision giving way to the Variscan orogen. Compressional and extensional structures developed during the building...

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Autores: Díez Fernández, Rubén, Arenas, Ricardo, Pereira, M. Francisco, Sánchez Martínez, Sonia, Albert, Richard, Martín Parra, L.M., Rubio Pascual, Francisco Javier, Matas, Jerónimo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::a1cd0ae6bd65402b09b8f135248d2005
Acceso en línea:http://hdl.handle.net/10261/139541
Access Level:acceso abierto
Palabra clave:European geodynamics
Allochthonous complexes
Iberian massif
Paleozoic tectonics
Pangea amalgamation
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spelling Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisitedDíez Fernández, RubénArenas, RicardoPereira, M. FranciscoSánchez Martínez, SoniaAlbert, RichardMartín Parra, L.M.Rubio Pascual, Francisco JavierMatas, JerónimoEuropean geodynamicsAllochthonous complexesIberian massifPaleozoic tectonicsPangea amalgamationIberian massifAn integrated interpretation of the late Paleozoic structural and geochronological record of the Iberian Massif is presented and discussed under the perspective of a Gondwana-Laurussia collision giving way to the Variscan orogen. Compressional and extensional structures developed during the building of the Variscan orogenic crust of Iberia are linked together into major tectonic events operating at lithosphere scale. A review of the tectonometamorphic and magmatic evolution of the Iberian Massif reveals backs and forths in the overall convergence between Gondwana and Laurussia during the amalgamation of Pangea in late Paleozoic times. Stages dominated by lithosphere compression are characterized by subduction, both oceanic and continental, development of magmatic arcs, (over- and under-) thrusting of continental lithosphere, and folding. Variscan convergence resulted in the eventual transference of a large allochthonous set of peri-Gondwanan terranes, the Iberian Allochthon, onto the Gondwana mainland. The Iberian Allochthon bears the imprint of previous interaction between Gondwana and Laurussia, including their juxtaposition after the closure of the Rheic Ocean in Lower Devonian times. Stages governed by lithosphere extension are featured by the opening of two short-lived oceanic basins that dissected previous Variscan orogenic crust, first in the Lower-Middle Devonian, following the closure of the Rheic Ocean, and then in the early Carboniferous, following the emplacement of the peri-Gondwanan allochthon. An additional, major intra-orogenic extensional event in the early-middle Carboniferous dismembered the Iberian Allochthon into individual thrust stacks separated by extensional faults and domes. Lateral tectonics played an important role through the Variscan orogenesis, especially during the creation of new tectonic blocks separated by intracontinental strike-slip shear zones in the late stages of continental convergence.Financial support has been provided by the Spanish project CGL2012-34618, funded by Ministerio de Economía y Competitividad (Spain).Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/139541reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.earscirev.2016.08.002Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::a1cd0ae6bd65402b09b8f135248d20052026-05-22T06:33:51Z
dc.title.none.fl_str_mv Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
title Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
spellingShingle Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
Díez Fernández, Rubén
European geodynamics
Allochthonous complexes
Iberian massif
Paleozoic tectonics
Pangea amalgamation
Iberian massif
title_short Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
title_full Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
title_fullStr Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
title_full_unstemmed Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
title_sort Tectonic evolution of Variscan Iberia: Gondwana–Laurussia collision revisited
dc.creator.none.fl_str_mv Díez Fernández, Rubén
Arenas, Ricardo
Pereira, M. Francisco
Sánchez Martínez, Sonia
Albert, Richard
Martín Parra, L.M.
Rubio Pascual, Francisco Javier
Matas, Jerónimo
author Díez Fernández, Rubén
author_facet Díez Fernández, Rubén
Arenas, Ricardo
Pereira, M. Francisco
Sánchez Martínez, Sonia
Albert, Richard
Martín Parra, L.M.
Rubio Pascual, Francisco Javier
Matas, Jerónimo
author_role author
author2 Arenas, Ricardo
Pereira, M. Francisco
Sánchez Martínez, Sonia
Albert, Richard
Martín Parra, L.M.
Rubio Pascual, Francisco Javier
Matas, Jerónimo
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv European geodynamics
Allochthonous complexes
Iberian massif
Paleozoic tectonics
Pangea amalgamation
Iberian massif
topic European geodynamics
Allochthonous complexes
Iberian massif
Paleozoic tectonics
Pangea amalgamation
Iberian massif
description An integrated interpretation of the late Paleozoic structural and geochronological record of the Iberian Massif is presented and discussed under the perspective of a Gondwana-Laurussia collision giving way to the Variscan orogen. Compressional and extensional structures developed during the building of the Variscan orogenic crust of Iberia are linked together into major tectonic events operating at lithosphere scale. A review of the tectonometamorphic and magmatic evolution of the Iberian Massif reveals backs and forths in the overall convergence between Gondwana and Laurussia during the amalgamation of Pangea in late Paleozoic times. Stages dominated by lithosphere compression are characterized by subduction, both oceanic and continental, development of magmatic arcs, (over- and under-) thrusting of continental lithosphere, and folding. Variscan convergence resulted in the eventual transference of a large allochthonous set of peri-Gondwanan terranes, the Iberian Allochthon, onto the Gondwana mainland. The Iberian Allochthon bears the imprint of previous interaction between Gondwana and Laurussia, including their juxtaposition after the closure of the Rheic Ocean in Lower Devonian times. Stages governed by lithosphere extension are featured by the opening of two short-lived oceanic basins that dissected previous Variscan orogenic crust, first in the Lower-Middle Devonian, following the closure of the Rheic Ocean, and then in the early Carboniferous, following the emplacement of the peri-Gondwanan allochthon. An additional, major intra-orogenic extensional event in the early-middle Carboniferous dismembered the Iberian Allochthon into individual thrust stacks separated by extensional faults and domes. Lateral tectonics played an important role through the Variscan orogenesis, especially during the creation of new tectonic blocks separated by intracontinental strike-slip shear zones in the late stages of continental convergence.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
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/10261/139541
url http://hdl.handle.net/10261/139541
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.earscirev.2016.08.002
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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score 15,81155

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