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Authordc.contributor.authorJara, José Joaquín
Authordc.contributor.authorBarra Pantoja, Luis Fernando
Authordc.contributor.authorReich Morales, Martín Herbert
Authordc.contributor.authorLeisen, Mathieu
Authordc.contributor.authorRomero, Rurik
Authordc.contributor.authorMorata Céspedes, Diego Antonio
Admission datedc.date.accessioned2021-12-14T14:23:53Z
Available datedc.date.available2021-12-14T14:23:53Z
Publication datedc.date.issued2021
Cita de ítemdc.identifier.citationNature Communications (2021) 12:4930es_ES
Identifierdc.identifier.other10.1038/s41467-021-25232-z
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/183205
Abstractdc.description.abstractThe subduction of oceanic plates beneath continental lithosphere is responsible for continental growth and recycling of oceanic crust, promoting the formation of Cordilleran arcs. However, the processes that control the evolution of these Cordilleran orogenic belts, particularly during their early stages of formation, have not been fully investigated. Here we use a multi-proxy geochemical approach, based on zircon petrochronology and whole-rock analyses, to assess the early evolution of the Andes, one of the most remarkable continental arcs in the world. Our results show that magmatism in the early Andean Cordillera occurred over a period of similar to 120 million years with six distinct plutonic episodes between 215 and 94 Ma. Each episode is the result of a complex interplay between mantle, crust, slab and sediment contributions that can be traced using zircon chemistry. Overall, the magmatism evolved in response to changes in the tectonic configuration, from transtensional/extensional conditions (215-145 Ma) to a transtensional regime (138-94 Ma). We conclude that an external (tectonic) forcing model with mantle-derived inputs is responsible for the episodic plutonism in this extensional continental arc. This study highlights the use of zircon petrochronology in assessing the multimillion-year crustal scale evolution of Cordilleran arcs.es_ES
Patrocinadordc.description.sponsorshipComision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 1190105 FONDAP 15090013 FONDEQUIP instrumentation grant EQM120098 ANID through Millennium Science Initiative Program NCN13_065es_ES
Lenguagedc.language.isoenes_ES
Publisherdc.publisherNature Researches_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
Sourcedc.sourceNature Communicationses_ES
Keywordsdc.subjectArc geochemical variationses_ES
Keywordsdc.subjectNorthern Chilees_ES
Keywordsdc.subjectCoastal Cordilleraes_ES
Keywordsdc.subjectMagmatic arces_ES
Keywordsdc.subjectRockses_ES
Keywordsdc.subjectEvolutiones_ES
Keywordsdc.subjectPBes_ES
Keywordsdc.subjectChemistryes_ES
Keywordsdc.subjectEventses_ES
Keywordsdc.subjectDeformationes_ES
Títulodc.titleEpisodic construction of the early Andean Cordillera unravelled by zircon petrochronologyes_ES
Document typedc.typeArtículo de revistaes_ES
dc.description.versiondc.description.versionVersión publicada - versión final del editores_ES
dcterms.accessRightsdcterms.accessRightsAcceso abiertoes_ES
Catalogueruchile.catalogadorcrbes_ES
Indexationuchile.indexArtículo de publícación WoSes_ES


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Attribution-NonCommercial-NoDerivs 3.0 United States
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States