The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina

Autores
Hernando, Irene Raquel; Petrinovic, Ivan Alejandro; Llambias, Eduardo Jorge; D'Elia, Leandro; González, Pablo Diego; Aragón, Eugenio
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Hernando, Irene Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Petrinovic, Ivan Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra; Argentina.
Fil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Gonzalez, Pablo Diego. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Aragon, Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Hernando, Irene Raquel. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Petrinovic, Ivan Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Llambias, Eduardo Jorge. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
Fil: D'Elia, Leandro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
Fil: Aragon, Eugenio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
The Quaternary Payún Matrú volcano is a long-lived edifice that developed a summit caldera 8 km wide, with abundant pre- and post-caldera volcanic activity. It is the main volcano of the Payún Matrú Volcanic Field, which is located in the back-arc Payenia Basaltic Province, at mid-western Argentina. The composition ofPayún Matrú is mainly trachytic, with lesser amounts of trachy andesitic and basaltic trachy andesitic lavas. The Payún Matrú Volcanic Field includes also the Payún Liso stratovolcano and more than 200 monogenetic basaltic cones and associated lava flows that are located east and west of the caldera. The aim of this work is to show the Payún Matrú evolution based on the mineralogical and textural characterization and to make inferences on the trigger mechanism for the explosive eruption which leads to the caldera formation. Some intermediate lavasand trachytes include phenocrysts with contrasting textures and composition, such as inverse zoning in plagio clase and clinopyroxenes, sieved plagio clases with amore calcic rim and calcic plagio clases with a more sodic rim,indicating that they could not have formed together and suggesting magma mixing processes. In addition, a few lavas show mafic enclaves or texturally different groundmasses with fluidal contacts, indicating mingling between two magmas. These lavas are found in the pre-caldera stage and the early post-caldera stage of Payún Matrú. The trachytic pyroclastic deposits related to the caldera collapse do not exhibit evidence of hybridization,although they present a minor proportion of dissolved feldspars and biotite replaced by anhydrous minerals, suggesting that a restricted zone of the chamber was reheated. This may be explained by a mafic recharge event where part of the host trachytic magma was heated, but without a complete homogenization between thehost and recharging magmas. These features, in addition to the abundant basaltic volcanism east and west of the caldera, suggest that the trigger mechanism for the explosive eruption was the injection of basaltic magma into the trachytic chamber of Payún Matrú.
-
Materia
Ciencias Exactas y Naturales
Payun Matru Caldera
Trachytes
Magma Mixing
Eruption Trigger
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5611

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network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western ArgentinaHernando, Irene RaquelPetrinovic, Ivan AlejandroLlambias, Eduardo JorgeD'Elia, LeandroGonzález, Pablo DiegoAragón, EugenioCiencias Exactas y NaturalesPayun Matru CalderaTrachytesMagma MixingEruption TriggerCiencias Exactas y NaturalesFil: Hernando, Irene Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.Fil: Petrinovic, Ivan Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra; Argentina.Fil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.Fil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.Fil: Gonzalez, Pablo Diego. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.Fil: Aragon, Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.Fil: Hernando, Irene Raquel. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Petrinovic, Ivan Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Llambias, Eduardo Jorge. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.Fil: D'Elia, Leandro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.Fil: Aragon, Eugenio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.The Quaternary Payún Matrú volcano is a long-lived edifice that developed a summit caldera 8 km wide, with abundant pre- and post-caldera volcanic activity. It is the main volcano of the Payún Matrú Volcanic Field, which is located in the back-arc Payenia Basaltic Province, at mid-western Argentina. The composition ofPayún Matrú is mainly trachytic, with lesser amounts of trachy andesitic and basaltic trachy andesitic lavas. The Payún Matrú Volcanic Field includes also the Payún Liso stratovolcano and more than 200 monogenetic basaltic cones and associated lava flows that are located east and west of the caldera. The aim of this work is to show the Payún Matrú evolution based on the mineralogical and textural characterization and to make inferences on the trigger mechanism for the explosive eruption which leads to the caldera formation. Some intermediate lavasand trachytes include phenocrysts with contrasting textures and composition, such as inverse zoning in plagio clase and clinopyroxenes, sieved plagio clases with amore calcic rim and calcic plagio clases with a more sodic rim,indicating that they could not have formed together and suggesting magma mixing processes. In addition, a few lavas show mafic enclaves or texturally different groundmasses with fluidal contacts, indicating mingling between two magmas. These lavas are found in the pre-caldera stage and the early post-caldera stage of Payún Matrú. The trachytic pyroclastic deposits related to the caldera collapse do not exhibit evidence of hybridization,although they present a minor proportion of dissolved feldspars and biotite replaced by anhydrous minerals, suggesting that a restricted zone of the chamber was reheated. This may be explained by a mafic recharge event where part of the host trachytic magma was heated, but without a complete homogenization between thehost and recharging magmas. These features, in addition to the abundant basaltic volcanism east and west of the caldera, suggest that the trigger mechanism for the explosive eruption was the injection of basaltic magma into the trachytic chamber of Payún Matrú.-Elsevier Science2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfHernando, Irene Raquel., Petrinovic, Ivan Alejandro., Llambias, Eduardo Jorge., D'Elia, Leandro., Gonzalez, Pablo Diego y et al. (2016) The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina. Elsevier Science; Journal of Volcanology and Geothermal Research; 311; 150-1690377-0273https://www.sciencedirect.com/science/article/pii/S0377027316000184http://rid.unrn.edu.ar/handle/20.500.12049/5611https://doi.org/10.1016/j.jvolgeores.2016.01.008eng311Journal of Volcanology and Geothermal Researchinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-04T11:13:02Zoai:rid.unrn.edu.ar:20.500.12049/5611instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-04 11:13:02.466RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
title The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
spellingShingle The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
Hernando, Irene Raquel
Ciencias Exactas y Naturales
Payun Matru Caldera
Trachytes
Magma Mixing
Eruption Trigger
Ciencias Exactas y Naturales
title_short The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
title_full The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
title_fullStr The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
title_full_unstemmed The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
title_sort The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina
dc.creator.none.fl_str_mv Hernando, Irene Raquel
Petrinovic, Ivan Alejandro
Llambias, Eduardo Jorge
D'Elia, Leandro
González, Pablo Diego
Aragón, Eugenio
author Hernando, Irene Raquel
author_facet Hernando, Irene Raquel
Petrinovic, Ivan Alejandro
Llambias, Eduardo Jorge
D'Elia, Leandro
González, Pablo Diego
Aragón, Eugenio
author_role author
author2 Petrinovic, Ivan Alejandro
Llambias, Eduardo Jorge
D'Elia, Leandro
González, Pablo Diego
Aragón, Eugenio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
Payun Matru Caldera
Trachytes
Magma Mixing
Eruption Trigger
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
Payun Matru Caldera
Trachytes
Magma Mixing
Eruption Trigger
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Hernando, Irene Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Petrinovic, Ivan Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra; Argentina.
Fil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Gonzalez, Pablo Diego. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Aragon, Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
Fil: Hernando, Irene Raquel. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Petrinovic, Ivan Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Llambias, Eduardo Jorge. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
Fil: D'Elia, Leandro. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
Fil: Aragon, Eugenio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina.
The Quaternary Payún Matrú volcano is a long-lived edifice that developed a summit caldera 8 km wide, with abundant pre- and post-caldera volcanic activity. It is the main volcano of the Payún Matrú Volcanic Field, which is located in the back-arc Payenia Basaltic Province, at mid-western Argentina. The composition ofPayún Matrú is mainly trachytic, with lesser amounts of trachy andesitic and basaltic trachy andesitic lavas. The Payún Matrú Volcanic Field includes also the Payún Liso stratovolcano and more than 200 monogenetic basaltic cones and associated lava flows that are located east and west of the caldera. The aim of this work is to show the Payún Matrú evolution based on the mineralogical and textural characterization and to make inferences on the trigger mechanism for the explosive eruption which leads to the caldera formation. Some intermediate lavasand trachytes include phenocrysts with contrasting textures and composition, such as inverse zoning in plagio clase and clinopyroxenes, sieved plagio clases with amore calcic rim and calcic plagio clases with a more sodic rim,indicating that they could not have formed together and suggesting magma mixing processes. In addition, a few lavas show mafic enclaves or texturally different groundmasses with fluidal contacts, indicating mingling between two magmas. These lavas are found in the pre-caldera stage and the early post-caldera stage of Payún Matrú. The trachytic pyroclastic deposits related to the caldera collapse do not exhibit evidence of hybridization,although they present a minor proportion of dissolved feldspars and biotite replaced by anhydrous minerals, suggesting that a restricted zone of the chamber was reheated. This may be explained by a mafic recharge event where part of the host trachytic magma was heated, but without a complete homogenization between thehost and recharging magmas. These features, in addition to the abundant basaltic volcanism east and west of the caldera, suggest that the trigger mechanism for the explosive eruption was the injection of basaltic magma into the trachytic chamber of Payún Matrú.
-
description Fil: Hernando, Irene Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas; Argentina.
publishDate 2016
dc.date.none.fl_str_mv 2016
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 Hernando, Irene Raquel., Petrinovic, Ivan Alejandro., Llambias, Eduardo Jorge., D'Elia, Leandro., Gonzalez, Pablo Diego y et al. (2016) The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina. Elsevier Science; Journal of Volcanology and Geothermal Research; 311; 150-169
0377-0273
https://www.sciencedirect.com/science/article/pii/S0377027316000184
http://rid.unrn.edu.ar/handle/20.500.12049/5611
https://doi.org/10.1016/j.jvolgeores.2016.01.008
identifier_str_mv Hernando, Irene Raquel., Petrinovic, Ivan Alejandro., Llambias, Eduardo Jorge., D'Elia, Leandro., Gonzalez, Pablo Diego y et al. (2016) The role of magma mixing and mafic recharge in the evolution of a back-arc quaternary caldera: The case of Payún Matrú, Western Argentina. Elsevier Science; Journal of Volcanology and Geothermal Research; 311; 150-169
0377-0273
url https://www.sciencedirect.com/science/article/pii/S0377027316000184
http://rid.unrn.edu.ar/handle/20.500.12049/5611
https://doi.org/10.1016/j.jvolgeores.2016.01.008
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 311
Journal of Volcanology and Geothermal Research
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
publisher.none.fl_str_mv Elsevier Science
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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