Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile

Autores
Alloway, B. V.; Pearce, N. J. G.; Villarosa, Gustavo; Outes, Ana Valeria; Moreno, P. I.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Within the volcanological community there is a growing awareness that many large- to small-scale, point-source eruptive events can be fed by multiple melt bodies rather than from a single magma reservoir. In this study, glass shard major- and trace-element compositions were determined from tephra systematically sampled from the outset of the Puyehue-Cordón Caulle (PCC) eruption (~1 km3) in southern Chile which commenced on June 4th, 2011. Three distinct but cogenetic magma bodies were simultaneously tapped during the paroxysmal phase of this eruption. These are readily identified by clear compositional gaps in CaO, and by Sr/Zr and Sr/Y ratios, resulting from dominantly plagioclase extraction at slightly different pressures, with incompatible elements controlled by zircon crystallisation. Our results clearly demonstrate the utility of glass shard major- and trace-element data in defining the contribution of multiple magma bodies to an explosive eruption. The complex spatial association of the PCC fissure zone with the Liquiñe-Ofqui Fault zone was likely an influential factor that impeded the ascent of the parent magma and allowed the formation of discrete melt bodies within the sub-volcanic system that continued to independently fractionate.
Fil: Alloway, B. V.. University of Wellington; Nueva Zelanda
Fil: Pearce, N. J. G.. Aberystwyth University; Reino Unido
Fil: Villarosa, Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Outes, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Moreno, P. I.. Universidad de Chile; Chile
Materia
Cordon Caulle
Volcanic Eruption
Magma Chambers
Magma Geochemistry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11999
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, ChileAlloway, B. V.Pearce, N. J. G.Villarosa, GustavoOutes, Ana ValeriaMoreno, P. I.Cordon CaulleVolcanic EruptionMagma ChambersMagma Geochemistryhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Within the volcanological community there is a growing awareness that many large- to small-scale, point-source eruptive events can be fed by multiple melt bodies rather than from a single magma reservoir. In this study, glass shard major- and trace-element compositions were determined from tephra systematically sampled from the outset of the Puyehue-Cordón Caulle (PCC) eruption (~1 km3) in southern Chile which commenced on June 4th, 2011. Three distinct but cogenetic magma bodies were simultaneously tapped during the paroxysmal phase of this eruption. These are readily identified by clear compositional gaps in CaO, and by Sr/Zr and Sr/Y ratios, resulting from dominantly plagioclase extraction at slightly different pressures, with incompatible elements controlled by zircon crystallisation. Our results clearly demonstrate the utility of glass shard major- and trace-element data in defining the contribution of multiple magma bodies to an explosive eruption. The complex spatial association of the PCC fissure zone with the Liquiñe-Ofqui Fault zone was likely an influential factor that impeded the ascent of the parent magma and allowed the formation of discrete melt bodies within the sub-volcanic system that continued to independently fractionate.Fil: Alloway, B. V.. University of Wellington; Nueva ZelandaFil: Pearce, N. J. G.. Aberystwyth University; Reino UnidoFil: Villarosa, Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; ArgentinaFil: Outes, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; ArgentinaFil: Moreno, P. I.. Universidad de Chile; ChileNature Publishing Group2015-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11999Alloway, B. V.; Pearce, N. J. G.; Villarosa, Gustavo; Outes, Ana Valeria; Moreno, P. I.; Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile; Nature Publishing Group; Nature Scientific Reports; 5; 17589; 12-2015; 1-82045-2322enginfo:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/srep17589info:eu-repo/semantics/altIdentifier/doi/10.1038/srep17589info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:11Zoai:ri.conicet.gov.ar:11336/11999instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:11.799CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
title Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
spellingShingle Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
Alloway, B. V.
Cordon Caulle
Volcanic Eruption
Magma Chambers
Magma Geochemistry
title_short Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
title_full Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
title_fullStr Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
title_full_unstemmed Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
title_sort Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile
dc.creator.none.fl_str_mv Alloway, B. V.
Pearce, N. J. G.
Villarosa, Gustavo
Outes, Ana Valeria
Moreno, P. I.
author Alloway, B. V.
author_facet Alloway, B. V.
Pearce, N. J. G.
Villarosa, Gustavo
Outes, Ana Valeria
Moreno, P. I.
author_role author
author2 Pearce, N. J. G.
Villarosa, Gustavo
Outes, Ana Valeria
Moreno, P. I.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cordon Caulle
Volcanic Eruption
Magma Chambers
Magma Geochemistry
topic Cordon Caulle
Volcanic Eruption
Magma Chambers
Magma Geochemistry
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Within the volcanological community there is a growing awareness that many large- to small-scale, point-source eruptive events can be fed by multiple melt bodies rather than from a single magma reservoir. In this study, glass shard major- and trace-element compositions were determined from tephra systematically sampled from the outset of the Puyehue-Cordón Caulle (PCC) eruption (~1 km3) in southern Chile which commenced on June 4th, 2011. Three distinct but cogenetic magma bodies were simultaneously tapped during the paroxysmal phase of this eruption. These are readily identified by clear compositional gaps in CaO, and by Sr/Zr and Sr/Y ratios, resulting from dominantly plagioclase extraction at slightly different pressures, with incompatible elements controlled by zircon crystallisation. Our results clearly demonstrate the utility of glass shard major- and trace-element data in defining the contribution of multiple magma bodies to an explosive eruption. The complex spatial association of the PCC fissure zone with the Liquiñe-Ofqui Fault zone was likely an influential factor that impeded the ascent of the parent magma and allowed the formation of discrete melt bodies within the sub-volcanic system that continued to independently fractionate.
Fil: Alloway, B. V.. University of Wellington; Nueva Zelanda
Fil: Pearce, N. J. G.. Aberystwyth University; Reino Unido
Fil: Villarosa, Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Outes, Ana Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Moreno, P. I.. Universidad de Chile; Chile
description Within the volcanological community there is a growing awareness that many large- to small-scale, point-source eruptive events can be fed by multiple melt bodies rather than from a single magma reservoir. In this study, glass shard major- and trace-element compositions were determined from tephra systematically sampled from the outset of the Puyehue-Cordón Caulle (PCC) eruption (~1 km3) in southern Chile which commenced on June 4th, 2011. Three distinct but cogenetic magma bodies were simultaneously tapped during the paroxysmal phase of this eruption. These are readily identified by clear compositional gaps in CaO, and by Sr/Zr and Sr/Y ratios, resulting from dominantly plagioclase extraction at slightly different pressures, with incompatible elements controlled by zircon crystallisation. Our results clearly demonstrate the utility of glass shard major- and trace-element data in defining the contribution of multiple magma bodies to an explosive eruption. The complex spatial association of the PCC fissure zone with the Liquiñe-Ofqui Fault zone was likely an influential factor that impeded the ascent of the parent magma and allowed the formation of discrete melt bodies within the sub-volcanic system that continued to independently fractionate.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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 http://hdl.handle.net/11336/11999
Alloway, B. V.; Pearce, N. J. G.; Villarosa, Gustavo; Outes, Ana Valeria; Moreno, P. I.; Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile; Nature Publishing Group; Nature Scientific Reports; 5; 17589; 12-2015; 1-8
2045-2322
url http://hdl.handle.net/11336/11999
identifier_str_mv Alloway, B. V.; Pearce, N. J. G.; Villarosa, Gustavo; Outes, Ana Valeria; Moreno, P. I.; Multiple melt bodies fed the AD 2011 eruption of Puyehue-Cordón Caulle, Chile; Nature Publishing Group; Nature Scientific Reports; 5; 17589; 12-2015; 1-8
2045-2322
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/srep17589
info:eu-repo/semantics/altIdentifier/doi/10.1038/srep17589
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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