Skip navigation
Por favor, use este identificador para citar o enlazar este ítem: http://rid.unrn.edu.ar/handle/20.500.12049/11578

Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.contributor.authorMarcos, Paulo-
dc.contributor.authorRenda, Emiliano-
dc.contributor.authorGonzález, Pablo Diego-
dc.contributor.authorOriolo, Sebastián-
dc.contributor.authorScivetti, Nicolás-
dc.contributor.authorBenedini, Leonardo-
dc.contributor.authorGeraldes, Mauro-
dc.contributor.authorGregori, Daniel-
dc.contributor.authorYoya, María Belén-
dc.contributor.authorBahia, Marcos-
dc.date.accessioned2024-05-13T13:38:32Z-
dc.date.available2024-05-13T13:38:32Z-
dc.date.issued2023-11-15-
dc.identifier.citationMarcos, P., Renda, E., González, P.D., Oriolo, S., Scivetti, N., Benedini, L., Geraldes, M., Gregori, D., Yoya, B., Bahía, M. 2023. Devonian to early Carboniferous advancing-retreating subduction switch in southern South America: U-Pb and Lu-Hf isotopic insights. Tectonics 42 (11), e2022TC007533.es_ES
dc.identifier.issn0278-7407es_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/11578-
dc.description.abstractIn this contribution, we present new early middle Devonian igneous and metaigneous units with a major juvenile magmatic source input in the North Patagonian Massif, which were discovered through U-Pb and Lu-Hf zircon analyses. Afterward, we assessed their tectonic implications for northwestern Patagonia and then for southern South America, combining our results with available database information consisting of igneous crystallization ages and isotopic data of the Devonian to early Carboniferous magmatic units, tectonic-metamorphic analyses, and thermochronologic record. This study allows for distinguishing retreating and advancing subduction switching in northwestern Patagonia (38°30′ to 44°S) and a contrasting coetaneous evolution for basement outcrops exposed further north (27°30′ and 37°30′S). The early middle Devonian (400–380 Ma) northwestern Patagonian magmatism is characterized by widespread magmatism and positive εHf–εNd linked to forearc and backarc magmatism that evolved within a retreating subduction stage. A tectonic switching toward advancing orogeny stage began in the late Devonian, evidenced by a lull in magmatic activity with a negative εHf–εNd trend, possibly contemporaneous with the first tectonic-metamorphic event in western Patagonia. An early Carboniferous magmatic gap, followed by the subsequent development of the main foliation in the basement during the Carboniferous-Permian period, denotes the acme of this contractional stage. In contrast, the Devonian period in the northern segment is characterized by mostly negative εHf–εNd values, reverse shear zone activity in the foreland, and an inboard magmatism migration, evidencing a compressive tectonic setting that changed to an extensional configuration in the early Carboniferous with widespread arc magmatism development.es_ES
dc.format.extentp. e2022TC007533es_ES
dc.language.isoenes_ES
dc.publisherAGU Publicationses_ES
dc.relation.urihttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2022TC007533es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleDevonian to early Carboniferous advancing-retreating subduction switch in southern South America: U-Pb and Lu-Hf isotopic insights.es_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationMarcos, Paulo. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología, Río Negro, Argentinaes_ES
dc.description.filiationRenda, Emiliano. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología, Río Negro, Argentinaes_ES
dc.description.filiationGonzález, Pablo Diego. Centro SEGEMAR General Roca. Río Negro; Argentina.es_ES
dc.description.filiationOriolo, Sebastián. IGEBA (UBA-CONICET). Buenos Aires; Argentina.es_ES
dc.description.filiationScivetti, Nicolás. Instituto Patagónico de Geología y Paleontología –IPGP- (CENPAT-CONICET), Puerto Madryn, Argentinaes_ES
dc.description.filiationBenedini, Leonardo. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentinaes_ES
dc.description.filiationGeraldes, Mauro. Departamento de Geología Regional, Facultad de Geología, Universidad Estatal de Río de Janeiro, Rio do Janeiro, Braziles_ES
dc.description.filiationGregori, Daniel. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentinaes_ES
dc.description.filiationYoya, María Belén. IGEBA (UBA-CONICET). Buenos Aires; Argentina.es_ES
dc.description.filiationBahía, Marcos. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentinaes_ES
dc.subject.keywordDevonianes_ES
dc.subject.keywordCarboniferouses_ES
dc.subject.keywordU-Pb datinges_ES
dc.subject.keywordLu-Hf isotopeses_ES
dc.subject.keywordaccretionary orogenes_ES
dc.subject.keywordPatagoniaes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaCiencias Exactas y Naturaleses_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geologíaes_ES
dc.relation.journalissue42 (11)es_ES
dc.description.reviewtruees_ES
dc.description.resumenIn this contribution, we present new early middle Devonian igneous and metaigneous units with a major juvenile magmatic source input in the North Patagonian Massif, which were discovered through U-Pb and Lu-Hf zircon analyses. Afterward, we assessed their tectonic implications for northwestern Patagonia and then for southern South America, combining our results with available database information consisting of igneous crystallization ages and isotopic data of the Devonian to early Carboniferous magmatic units, tectonic-metamorphic analyses, and thermochronologic record. This study allows for distinguishing retreating and advancing subduction switching in northwestern Patagonia (38°30′ to 44°S) and a contrasting coetaneous evolution for basement outcrops exposed further north (27°30′ and 37°30′S). The early middle Devonian (400–380 Ma) northwestern Patagonian magmatism is characterized by widespread magmatism and positive εHf–εNd linked to forearc and backarc magmatism that evolved within a retreating subduction stage. A tectonic switching toward advancing orogeny stage began in the late Devonian, evidenced by a lull in magmatic activity with a negative εHf–εNd trend, possibly contemporaneous with the first tectonic-metamorphic event in western Patagonia. An early Carboniferous magmatic gap, followed by the subsequent development of the main foliation in the basement during the Carboniferous-Permian period, denotes the acme of this contractional stage. In contrast, the Devonian period in the northern segment is characterized by mostly negative εHf–εNd values, reverse shear zone activity in the foreland, and an inboard magmatism migration, evidencing a compressive tectonic setting that changed to an extensional configuration in the early Carboniferous with widespread arc magmatism development.es_ES
dc.identifier.doihttps://doi.org/10.1029/2022TC007533-
dc.relation.journalTitleTectonicses_ES
Aparece en las colecciones: Artículos

Archivos en este ítem:
Archivo Descripción Tamaño Formato  
Marcos et al. (2023). Devonian to Early Carboniferous Retreating-Advancing.pdf14,05 MBAdobe PDFVisualizar/Abrir

Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons