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
- Institución
- Universidad Nacional de Río Negro
- OAI Identificador
- oai:rid.unrn.edu.ar:20.500.12049/5611
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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 |
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RID-UNRN (UNRN) |
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RID-UNRN (UNRN) |
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Universidad Nacional de Río Negro |
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RID-UNRN (UNRN) - Universidad Nacional de Río Negro |
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rid@unrn.edu.ar |
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