Post-collisional batholiths do contribute to continental growth

Post-collisional voluminous silicic magmatism is represented in most orogens across the world in the form of large granodiorite batholiths and minor intermediate and mafic intrusions, postdating 5-30 Ma the age of the collisional paroxysm responsible of the main mountain building events. Post-collis...

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Detalhes bibliográficos
Autores: Gómez-Frutos, Daniel, Castro Dorado, Antonio, Gutiérrez-Alonso, Gabriel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/298812
Acesso em linha:http://hdl.handle.net/10261/298812
Access Level:acceso abierto
Palavra-chave:Crustal growth
Continental crust
Post-collisional magmatism
Metasomatized mantle
Tectonics
Batholith
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spelling Post-collisional batholiths do contribute to continental growthGómez-Frutos, DanielCastro Dorado, AntonioGutiérrez-Alonso, GabrielCrustal growthContinental crustPost-collisional magmatismMetasomatized mantleTectonicsBatholithPost-collisional voluminous silicic magmatism is represented in most orogens across the world in the form of large granodiorite batholiths and minor intermediate and mafic intrusions, postdating 5-30 Ma the age of the collisional paroxysm responsible of the main mountain building events. Post-collisional mafic intrusions are acknowledged as a mechanism that contributes to long-term yet minor continental growth. The silicic magmas forming the large batholiths, however, have been dismissed from the crustal growth discussion due to bias in the conception that they always generate by recycling older lower crustal igneous rocks. Contrary to this, geochemical and isotopic relations together with new experimental data provided in this paper suggest that the post-collisional signature can be reproduced without the implication of a crustal component, supporting a potential common origin for the two suites, intermediate and silicic. That is, both suites can be derived from a metasomatized mantle source, thus representing the injection of largely juvenile material to produce new continental crust. This inference is contextualized within the supercontinent cycle, showing that the timing of post-collisional magmatism accounts for the generation and preservation rates predicted by the existing models, since both reach maximum values in the amalgamation-collisional stage of the supercontinent cycle, rather than in the subduction stage. All together these inferences lead to think that post-Archean, post-collisional magmatism has been significantly underestimated when computing continental crustal growth through time.This work was supported through the Spanish Research Agency (AEI) Grant N∘ PGC2018-096534-B-I00 (Proyecto IBERCRUST).Peer reviewedElsevierAgencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/298812reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-096534-B-I00https://doi.org/10.1016/j.epsl.2022.117978Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2988122026-05-22T06:33:51Z
dc.title.none.fl_str_mv Post-collisional batholiths do contribute to continental growth
title Post-collisional batholiths do contribute to continental growth
spellingShingle Post-collisional batholiths do contribute to continental growth
Gómez-Frutos, Daniel
Crustal growth
Continental crust
Post-collisional magmatism
Metasomatized mantle
Tectonics
Batholith
title_short Post-collisional batholiths do contribute to continental growth
title_full Post-collisional batholiths do contribute to continental growth
title_fullStr Post-collisional batholiths do contribute to continental growth
title_full_unstemmed Post-collisional batholiths do contribute to continental growth
title_sort Post-collisional batholiths do contribute to continental growth
dc.creator.none.fl_str_mv Gómez-Frutos, Daniel
Castro Dorado, Antonio
Gutiérrez-Alonso, Gabriel
author Gómez-Frutos, Daniel
author_facet Gómez-Frutos, Daniel
Castro Dorado, Antonio
Gutiérrez-Alonso, Gabriel
author_role author
author2 Castro Dorado, Antonio
Gutiérrez-Alonso, Gabriel
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Crustal growth
Continental crust
Post-collisional magmatism
Metasomatized mantle
Tectonics
Batholith
topic Crustal growth
Continental crust
Post-collisional magmatism
Metasomatized mantle
Tectonics
Batholith
description Post-collisional voluminous silicic magmatism is represented in most orogens across the world in the form of large granodiorite batholiths and minor intermediate and mafic intrusions, postdating 5-30 Ma the age of the collisional paroxysm responsible of the main mountain building events. Post-collisional mafic intrusions are acknowledged as a mechanism that contributes to long-term yet minor continental growth. The silicic magmas forming the large batholiths, however, have been dismissed from the crustal growth discussion due to bias in the conception that they always generate by recycling older lower crustal igneous rocks. Contrary to this, geochemical and isotopic relations together with new experimental data provided in this paper suggest that the post-collisional signature can be reproduced without the implication of a crustal component, supporting a potential common origin for the two suites, intermediate and silicic. That is, both suites can be derived from a metasomatized mantle source, thus representing the injection of largely juvenile material to produce new continental crust. This inference is contextualized within the supercontinent cycle, showing that the timing of post-collisional magmatism accounts for the generation and preservation rates predicted by the existing models, since both reach maximum values in the amalgamation-collisional stage of the supercontinent cycle, rather than in the subduction stage. All together these inferences lead to think that post-Archean, post-collisional magmatism has been significantly underestimated when computing continental crustal growth through time.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
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/10261/298812
url http://hdl.handle.net/10261/298812
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-096534-B-I00
https://doi.org/10.1016/j.epsl.2022.117978
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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