Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia

Autores: Zaffarana, Claudia Beatriz; Lagorio, Silvia L.; Gallastegui, Gloria; Wörner, Gerhard; Orts, Darío Leandro; Gregori, Daniel A.; Poma, Stella M.; Busteros, Alicia; Giacosa, Raúl Eduardo; Silva Nieto, Diego G.; Ruiz González, Víctor; Boltshauser, Bárbara Elisa; Puigdomenech Negre, Carla G.; Haller, Miguel
Año de publicación: 2020
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: Fil: Zaffarana, Claudia B. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Lagorio, Silvia L. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.
Fil: Gallastegui, Gloria. Instituto Geológico y Minero de España (IGME). Oviedo, Spain.
Fil: Wörner, Gerhard. Georg-August-Universität Göttingen Department of Geochemistry; Germany.
Fil: Orts, Darío L. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Gregori, Daniel A. Universidad Nacional del Sur. Bahia Blanca, Argentina.
Fil: Poma, Stella M. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.
Fil: Busteros, Alicia. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.
Fil: Giacosa, Raúl E. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.
Fil: Silva Nieto, Diego G. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.
Fil: Ruiz González, Víctor. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.
Fil: Boltshauser, Bárbara. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Puigdomenech Negre, Carla G. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.
Fil: Haller, Miguel. Universidad Nacional de la Patagonia San Juan Bosco. Puerto Madryn, Argentina.
Fil: Zaffarana, Claudia B. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Orts, Darío L. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Gregori, Daniel A. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Poma, Stella M. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Boltshauser, Bárbara. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.
Fil: Puigdomenech Negre, Carla G. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
Fil: Haller, Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
One of the largest silicic igneous provinces of the world, the Chon Aike Volcanic Province, is related to an extensional regime developed in Patagonia in Early to Middle Jurassic times. This work presents new geochemical analyses for major and trace elements from different units in the central domain of northern Patagonia, units known as Lonco Trapial and Garamilla formations. Additionally, some samples were analyzed from the Piltriquitrón and Lago La Plata formations in the western domain of northern Patagonia. One new U–Pb age of a rhyolitic dike (177.26 ± 0.96 Ma) and new Rb–Sr and Sm–Nd determinations from the Lonco Trapial Formation are also presented in this work. Results presented here fill a gap in geochemical data for the area with respect to the temporal and spatial coverage of the Chon Aike Volcanic Province in northern Patagonia. Our comparative study shows that all Early-Middle Jurassic igneous rocks from this area have mixed characteristics between slab-derived subduction-related settings and intraplate magmas. In the central domain melting must have involved both mantle and lower crust, so that a mixed source is envisaged. Ascent to shallow crustal levels with subsequent low-pressure differentiation followed by assimilation could explain the geochemical features of Lonco Trapial magmas from andesites to subordinated rhyolites. The arc signature of Lonco Trapial magmas located far from the volcanic arc is considered as the result of decompression melting of mantle enriched by previous subduction events rather than by contemporaneous Early Jurassic subduction involving additional contributions of crustal materials. Upper crustal contamination was facilitated by eastwards increasing crustal thicknesses, so Lonco Trapial magmas had to traverse a thicker crust on their way to the surface.
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Materia: Ciencias Exactas y Naturales
Petrogenetic
Jurassic
Patagonia
Ciencias Exactas y Naturales
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Universidad Nacional de Río Negro
OAI Identificador: oai:rid.unrn.edu.ar:20.500.12049/5424

Acceder

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repository_id_str	4369
network_name_str	RID-UNRN (UNRN)
spelling	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern PatagoniaZaffarana, Claudia BeatrizLagorio, Silvia L.Gallastegui, GloriaWörner, GerhardOrts, Darío LeandroGregori, Daniel A.Poma, Stella M.Busteros, AliciaGiacosa, Raúl EduardoSilva Nieto, Diego G.Ruiz González, VíctorBoltshauser, Bárbara ElisaPuigdomenech Negre, Carla G.Haller, MiguelCiencias Exactas y NaturalesPetrogeneticJurassicPatagoniaCiencias Exactas y NaturalesFil: Zaffarana, Claudia B. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Lagorio, Silvia L. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.Fil: Gallastegui, Gloria. Instituto Geológico y Minero de España (IGME). Oviedo, Spain.Fil: Wörner, Gerhard. Georg-August-Universität Göttingen Department of Geochemistry; Germany.Fil: Orts, Darío L. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Gregori, Daniel A. Universidad Nacional del Sur. Bahia Blanca, Argentina.Fil: Poma, Stella M. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.Fil: Busteros, Alicia. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.Fil: Giacosa, Raúl E. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.Fil: Silva Nieto, Diego G. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina.Fil: Ruiz González, Víctor. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.Fil: Boltshauser, Bárbara. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Puigdomenech Negre, Carla G. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina.Fil: Haller, Miguel. Universidad Nacional de la Patagonia San Juan Bosco. Puerto Madryn, Argentina.Fil: Zaffarana, Claudia B. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Orts, Darío L. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Gregori, Daniel A. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Poma, Stella M. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Boltshauser, Bárbara. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.Fil: Puigdomenech Negre, Carla G. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.Fil: Haller, Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.One of the largest silicic igneous provinces of the world, the Chon Aike Volcanic Province, is related to an extensional regime developed in Patagonia in Early to Middle Jurassic times. This work presents new geochemical analyses for major and trace elements from different units in the central domain of northern Patagonia, units known as Lonco Trapial and Garamilla formations. Additionally, some samples were analyzed from the Piltriquitrón and Lago La Plata formations in the western domain of northern Patagonia. One new U–Pb age of a rhyolitic dike (177.26 ± 0.96 Ma) and new Rb–Sr and Sm–Nd determinations from the Lonco Trapial Formation are also presented in this work. Results presented here fill a gap in geochemical data for the area with respect to the temporal and spatial coverage of the Chon Aike Volcanic Province in northern Patagonia. Our comparative study shows that all Early-Middle Jurassic igneous rocks from this area have mixed characteristics between slab-derived subduction-related settings and intraplate magmas. In the central domain melting must have involved both mantle and lower crust, so that a mixed source is envisaged. Ascent to shallow crustal levels with subsequent low-pressure differentiation followed by assimilation could explain the geochemical features of Lonco Trapial magmas from andesites to subordinated rhyolites. The arc signature of Lonco Trapial magmas located far from the volcanic arc is considered as the result of decompression melting of mantle enriched by previous subduction events rather than by contemporaneous Early Jurassic subduction involving additional contributions of crustal materials. Upper crustal contamination was facilitated by eastwards increasing crustal thicknesses, so Lonco Trapial magmas had to traverse a thicker crust on their way to the surface.-Elsevier Science Ltd2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfZaffarana, Claudia B., Lagorio, Silvia L., Gallasategui, Gloria., Wörner, Gerhard., Orts, Darío L., Gregori, Daniel., Poma, Stella., Busteros, Alicia., Giacosa, Raúl G., Silva Nieto, Diego., Ruiz González, Víctor., Boltshauser, Bárbara., Puigdomenech, Carla y Haller, Miguel (2020). Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from Northern Patagonia; Elsevier Science Ltd; Journal of South American Earth Sciences; 101; 1026240895-9811https://www.sciencedirect.com/science/article/abs/pii/S0895981120301371?via%3Dihubhttp://rid.unrn.edu.ar/handle/20.500.12049/5424https://doi.org/10.1016/j.jsames.2020.102624eng101Journal of South American Earth Sciencesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-18T10:52:44Zoai:rid.unrn.edu.ar:20.500.12049/5424instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-18 10:52:44.553RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
title	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
spellingShingle	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia Zaffarana, Claudia Beatriz Ciencias Exactas y Naturales Petrogenetic Jurassic Patagonia Ciencias Exactas y Naturales
title_short	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
title_full	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
title_fullStr	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
title_full_unstemmed	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
title_sort	Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia
dc.creator.none.fl_str_mv	Zaffarana, Claudia Beatriz Lagorio, Silvia L. Gallastegui, Gloria Wörner, Gerhard Orts, Darío Leandro Gregori, Daniel A. Poma, Stella M. Busteros, Alicia Giacosa, Raúl Eduardo Silva Nieto, Diego G. Ruiz González, Víctor Boltshauser, Bárbara Elisa Puigdomenech Negre, Carla G. Haller, Miguel
author	Zaffarana, Claudia Beatriz
author_facet	Zaffarana, Claudia Beatriz Lagorio, Silvia L. Gallastegui, Gloria Wörner, Gerhard Orts, Darío Leandro Gregori, Daniel A. Poma, Stella M. Busteros, Alicia Giacosa, Raúl Eduardo Silva Nieto, Diego G. Ruiz González, Víctor Boltshauser, Bárbara Elisa Puigdomenech Negre, Carla G. Haller, Miguel
author_role	author
author2	Lagorio, Silvia L. Gallastegui, Gloria Wörner, Gerhard Orts, Darío Leandro Gregori, Daniel A. Poma, Stella M. Busteros, Alicia Giacosa, Raúl Eduardo Silva Nieto, Diego G. Ruiz González, Víctor Boltshauser, Bárbara Elisa Puigdomenech Negre, Carla G. Haller, Miguel
author2_role	author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Ciencias Exactas y Naturales Petrogenetic Jurassic Patagonia Ciencias Exactas y Naturales
topic	Ciencias Exactas y Naturales Petrogenetic Jurassic Patagonia Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv	Fil: Zaffarana, Claudia B. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Lagorio, Silvia L. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina. Fil: Gallastegui, Gloria. Instituto Geológico y Minero de España (IGME). Oviedo, Spain. Fil: Wörner, Gerhard. Georg-August-Universität Göttingen Department of Geochemistry; Germany. Fil: Orts, Darío L. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Gregori, Daniel A. Universidad Nacional del Sur. Bahia Blanca, Argentina. Fil: Poma, Stella M. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina. Fil: Busteros, Alicia. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina. Fil: Giacosa, Raúl E. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina. Fil: Silva Nieto, Diego G. Servicio Geológico y Minero Argentino (SEGEMAR). Buenos Aires, Argentina. Fil: Ruiz González, Víctor. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina. Fil: Boltshauser, Bárbara. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Puigdomenech Negre, Carla G. Universidad de Buenos Aires (UBA). Buenos Aires, Argentina. Fil: Haller, Miguel. Universidad Nacional de la Patagonia San Juan Bosco. Puerto Madryn, Argentina. Fil: Zaffarana, Claudia B. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Orts, Darío L. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Gregori, Daniel A. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Poma, Stella M. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Boltshauser, Bárbara. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Puigdomenech Negre, Carla G. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. Fil: Haller, Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina. One of the largest silicic igneous provinces of the world, the Chon Aike Volcanic Province, is related to an extensional regime developed in Patagonia in Early to Middle Jurassic times. This work presents new geochemical analyses for major and trace elements from different units in the central domain of northern Patagonia, units known as Lonco Trapial and Garamilla formations. Additionally, some samples were analyzed from the Piltriquitrón and Lago La Plata formations in the western domain of northern Patagonia. One new U–Pb age of a rhyolitic dike (177.26 ± 0.96 Ma) and new Rb–Sr and Sm–Nd determinations from the Lonco Trapial Formation are also presented in this work. Results presented here fill a gap in geochemical data for the area with respect to the temporal and spatial coverage of the Chon Aike Volcanic Province in northern Patagonia. Our comparative study shows that all Early-Middle Jurassic igneous rocks from this area have mixed characteristics between slab-derived subduction-related settings and intraplate magmas. In the central domain melting must have involved both mantle and lower crust, so that a mixed source is envisaged. Ascent to shallow crustal levels with subsequent low-pressure differentiation followed by assimilation could explain the geochemical features of Lonco Trapial magmas from andesites to subordinated rhyolites. The arc signature of Lonco Trapial magmas located far from the volcanic arc is considered as the result of decompression melting of mantle enriched by previous subduction events rather than by contemporaneous Early Jurassic subduction involving additional contributions of crustal materials. Upper crustal contamination was facilitated by eastwards increasing crustal thicknesses, so Lonco Trapial magmas had to traverse a thicker crust on their way to the surface. -
description	Fil: Zaffarana, Claudia B. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.
publishDate	2020
dc.date.none.fl_str_mv	2020-08
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	Zaffarana, Claudia B., Lagorio, Silvia L., Gallasategui, Gloria., Wörner, Gerhard., Orts, Darío L., Gregori, Daniel., Poma, Stella., Busteros, Alicia., Giacosa, Raúl G., Silva Nieto, Diego., Ruiz González, Víctor., Boltshauser, Bárbara., Puigdomenech, Carla y Haller, Miguel (2020). Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from Northern Patagonia; Elsevier Science Ltd; Journal of South American Earth Sciences; 101; 102624 0895-9811 https://www.sciencedirect.com/science/article/abs/pii/S0895981120301371?via%3Dihub http://rid.unrn.edu.ar/handle/20.500.12049/5424 https://doi.org/10.1016/j.jsames.2020.102624
identifier_str_mv	Zaffarana, Claudia B., Lagorio, Silvia L., Gallasategui, Gloria., Wörner, Gerhard., Orts, Darío L., Gregori, Daniel., Poma, Stella., Busteros, Alicia., Giacosa, Raúl G., Silva Nieto, Diego., Ruiz González, Víctor., Boltshauser, Bárbara., Puigdomenech, Carla y Haller, Miguel (2020). Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from Northern Patagonia; Elsevier Science Ltd; Journal of South American Earth Sciences; 101; 102624 0895-9811
url	https://www.sciencedirect.com/science/article/abs/pii/S0895981120301371?via%3Dihub http://rid.unrn.edu.ar/handle/20.500.12049/5424 https://doi.org/10.1016/j.jsames.2020.102624
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	101 Journal of South American Earth Sciences
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	Elsevier Science Ltd
publisher.none.fl_str_mv	Elsevier Science Ltd
dc.source.none.fl_str_mv	reponame:RID-UNRN (UNRN) instname:Universidad Nacional de Río Negro
reponame_str	RID-UNRN (UNRN)
collection	RID-UNRN (UNRN)
instname_str	Universidad Nacional de Río Negro
repository.name.fl_str_mv	RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv	rid@unrn.edu.ar
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score	12.489739

Petrogenetic study of the Lonco Trapial volcanism and its comparison with the Early-Middle Jurassic magmatic units from northern Patagonia

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