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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Marcos, Paulo | - |
dc.contributor.author | Renda, Emiliano | - |
dc.contributor.author | González, Pablo Diego | - |
dc.contributor.author | Oriolo, Sebastián | - |
dc.contributor.author | Scivetti, Nicolás | - |
dc.contributor.author | Benedini, Leonardo | - |
dc.contributor.author | Geraldes, Mauro | - |
dc.contributor.author | Gregori, Daniel | - |
dc.contributor.author | Yoya, María Belén | - |
dc.contributor.author | Bahia, Marcos | - |
dc.date.accessioned | 2024-05-13T13:38:32Z | - |
dc.date.available | 2024-05-13T13:38:32Z | - |
dc.date.issued | 2023-11-15 | - |
dc.identifier.citation | Marcos, 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.issn | 0278-7407 | es_ES |
dc.identifier.uri | http://rid.unrn.edu.ar/handle/20.500.12049/11578 | - |
dc.description.abstract | In 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.extent | p. e2022TC007533 | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | AGU Publications | es_ES |
dc.relation.uri | https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2022TC007533 | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | - |
dc.title | Devonian to early Carboniferous advancing-retreating subduction switch in southern South America: U-Pb and Lu-Hf isotopic insights. | es_ES |
dc.type | Articulo | es_ES |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | - |
dc.description.filiation | Marcos, Paulo. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología, Río Negro, Argentina | es_ES |
dc.description.filiation | Renda, Emiliano. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología, Río Negro, Argentina | es_ES |
dc.description.filiation | González, Pablo Diego. Centro SEGEMAR General Roca. Río Negro; Argentina. | es_ES |
dc.description.filiation | Oriolo, Sebastián. IGEBA (UBA-CONICET). Buenos Aires; Argentina. | es_ES |
dc.description.filiation | Scivetti, Nicolás. Instituto Patagónico de Geología y Paleontología –IPGP- (CENPAT-CONICET), Puerto Madryn, Argentina | es_ES |
dc.description.filiation | Benedini, Leonardo. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina | es_ES |
dc.description.filiation | Geraldes, Mauro. Departamento de Geología Regional, Facultad de Geología, Universidad Estatal de Río de Janeiro, Rio do Janeiro, Brazil | es_ES |
dc.description.filiation | Gregori, Daniel. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina | es_ES |
dc.description.filiation | Yoya, María Belén. IGEBA (UBA-CONICET). Buenos Aires; Argentina. | es_ES |
dc.description.filiation | Bahía, Marcos. Instituto Geológico del Sur (INGEOSUR), Universidad Nacional del Sur (UNS)-CONICET, Bahía Blanca, Argentina | es_ES |
dc.subject.keyword | Devonian | es_ES |
dc.subject.keyword | Carboniferous | es_ES |
dc.subject.keyword | U-Pb dating | es_ES |
dc.subject.keyword | Lu-Hf isotopes | es_ES |
dc.subject.keyword | accretionary orogen | es_ES |
dc.subject.keyword | Patagonia | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.subject.materia | Ciencias Exactas y Naturales | es_ES |
dc.origin.lugarDesarrollo | Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología | es_ES |
dc.relation.journalissue | 42 (11) | es_ES |
dc.description.review | true | es_ES |
dc.description.resumen | In 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.doi | https://doi.org/10.1029/2022TC007533 | - |
dc.relation.journalTitle | Tectonics | es_ES |
Aparece en las colecciones: | Artículos |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Marcos et al. (2023). Devonian to Early Carboniferous Retreating-Advancing.pdf | 14,05 MB | Adobe PDF | Visualizar/Abrir |
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