Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)

According to their metamorphic evolution, the Basal Units of the Galician Allochthonous Complexes are thought to represent a part of the margin of the Paleozoic Gondwana, subducted at the onset of the Variscan Orogeny. Variations in the P-T conditions of the first HP metamorphic event along the unit...

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Detalles Bibliográficos
Autores: Martínez Catalán, José Ramón, Arenas Martín, Ricardo, Díaz García, Florentino, Rubio Pascual, Francisco J., Abati Gómez, Jacobo, Marquínez, Jorge
Tipo de recurso: artículo
Fecha de publicación:1996
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/58124
Acceso en línea:https://hdl.handle.net/20.500.14352/58124
Access Level:acceso abierto
Palabra clave:551.2
Continental subduction
Syn-orogenic extension
High-pressure metamorphism
Geodinámica
2507 Geofísica
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spelling Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)Martínez Catalán, José RamónArenas Martín, RicardoDíaz García, FlorentinoRubio Pascual, Francisco J.Abati Gómez, JacoboMarquínez, Jorge551.2Continental subductionSyn-orogenic extensionHigh-pressure metamorphismGeodinámica2507 GeofísicaAccording to their metamorphic evolution, the Basal Units of the Galician Allochthonous Complexes are thought to represent a part of the margin of the Paleozoic Gondwana, subducted at the onset of the Variscan Orogeny. Variations in the P-T conditions of the first HP metamorphic event along the units suggest an important westward component for the direction of sucduction. Subsequent underthrusting of more continental material blocked the subduction and triggered the ascent and exhumation of the Basal Units whereas the convergence continued. Compressional and extensional structures were synchronous or alternated in time and, together, induced the thinning and tapering of the orogenic wedge. The unroofing took place locally under an inverted temperature gradient, caused by a detachment which carried a part of the hot mantle wedge, above the subduction zone, over the subducted units.Sociedad Geológica de EspañaUniversidad Complutense de Madrid19961996-01-0119961996-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/58124reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/581242026-06-02T12:44:21Z
dc.title.none.fl_str_mv Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
title Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
spellingShingle Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
Martínez Catalán, José Ramón
551.2
Continental subduction
Syn-orogenic extension
High-pressure metamorphism
Geodinámica
2507 Geofísica
title_short Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
title_full Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
title_fullStr Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
title_full_unstemmed Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
title_sort Subduction and syn-collisional exhumation of a Paleozoic continental margin: an integrated study based on structures and P-T paths of the Basal Units in the Ordenes Complex (Galicia, Spain)
dc.creator.none.fl_str_mv Martínez Catalán, José Ramón
Arenas Martín, Ricardo
Díaz García, Florentino
Rubio Pascual, Francisco J.
Abati Gómez, Jacobo
Marquínez, Jorge
author Martínez Catalán, José Ramón
author_facet Martínez Catalán, José Ramón
Arenas Martín, Ricardo
Díaz García, Florentino
Rubio Pascual, Francisco J.
Abati Gómez, Jacobo
Marquínez, Jorge
author_role author
author2 Arenas Martín, Ricardo
Díaz García, Florentino
Rubio Pascual, Francisco J.
Abati Gómez, Jacobo
Marquínez, Jorge
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.2
Continental subduction
Syn-orogenic extension
High-pressure metamorphism
Geodinámica
2507 Geofísica
topic 551.2
Continental subduction
Syn-orogenic extension
High-pressure metamorphism
Geodinámica
2507 Geofísica
description According to their metamorphic evolution, the Basal Units of the Galician Allochthonous Complexes are thought to represent a part of the margin of the Paleozoic Gondwana, subducted at the onset of the Variscan Orogeny. Variations in the P-T conditions of the first HP metamorphic event along the units suggest an important westward component for the direction of sucduction. Subsequent underthrusting of more continental material blocked the subduction and triggered the ascent and exhumation of the Basal Units whereas the convergence continued. Compressional and extensional structures were synchronous or alternated in time and, together, induced the thinning and tapering of the orogenic wedge. The unroofing took place locally under an inverted temperature gradient, caused by a detachment which carried a part of the hot mantle wedge, above the subduction zone, over the subducted units.
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-01-01
1996
1996-01-01
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 https://hdl.handle.net/20.500.14352/58124
url https://hdl.handle.net/20.500.14352/58124
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
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
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:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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