Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis

Autores
Botto, Irma Lía; Barone, Vicente; Canafoglia, María Elena; Rovere, Elizabeth; Violante, Roberto; González, María José; Gazzoli, Delia; Schalamuk, Isidoro Bernardo
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently reported for the magma storage and its ascent conditions. The eruption started June 4th 2011, and the studied volcanic material corresponds to that collected in Argentine territory at different distances from the source, between 4 and 12 June 2011. The explosive-effusive volcanic process of the first days occurred with the simultaneous emplacement of lava flows and the venting of pyroclastic material, ejecting two well differentiated types of particles. The more abundant was constituted by rhyolitic and light color pumice fragments, characterized by a typical vesicular texture, easy fragmentation and absence of occluded crystalline phases. Particles found in minor proportion were dark color, different in shape and texture and rich in Fe and Ti. They seemed to be more effective for the interaction with emitted gases in the upper part of the column, for this reason, they appeared partially covered by condensation products. The ascent conditions of the magma affected its rheological behavior through variations in the degassing, viscosity and fragmentation. On the other hand, distance to the source, depositional time, volcanic evolution and environmental conditions are factors that affect the chemical composition of collected ash. So, the SiO2/FeO ratio not only increases with the distance but also with the deposition time and volcanic activity. The work was done with the aid of several techniques such as a laser-sediment analyzer, X-ray diffraction (XRD), chemical analysis (bulk and surface), SEM microscopy and Raman “microprobe” spectroscopy. On the other hand, the physicochemical behavior of the pyroclastic material allows us to suggest eventual applications.
Centro de Química Inorgánica
Instituto de Recursos Minerales
Materia
Química
Pyroclastic materials
Chemical composition
Mineralogy
Sem microscopy
Raman spectroscopy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/120341

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spelling Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysisBotto, Irma LíaBarone, VicenteCanafoglia, María ElenaRovere, ElizabethViolante, RobertoGonzález, María JoséGazzoli, DeliaSchalamuk, Isidoro BernardoQuímicaPyroclastic materialsChemical compositionMineralogySem microscopyRaman spectroscopyThe morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently reported for the magma storage and its ascent conditions. The eruption started June 4th 2011, and the studied volcanic material corresponds to that collected in Argentine territory at different distances from the source, between 4 and 12 June 2011. The explosive-effusive volcanic process of the first days occurred with the simultaneous emplacement of lava flows and the venting of pyroclastic material, ejecting two well differentiated types of particles. The more abundant was constituted by rhyolitic and light color pumice fragments, characterized by a typical vesicular texture, easy fragmentation and absence of occluded crystalline phases. Particles found in minor proportion were dark color, different in shape and texture and rich in Fe and Ti. They seemed to be more effective for the interaction with emitted gases in the upper part of the column, for this reason, they appeared partially covered by condensation products. The ascent conditions of the magma affected its rheological behavior through variations in the degassing, viscosity and fragmentation. On the other hand, distance to the source, depositional time, volcanic evolution and environmental conditions are factors that affect the chemical composition of collected ash. So, the SiO2/FeO ratio not only increases with the distance but also with the deposition time and volcanic activity. The work was done with the aid of several techniques such as a laser-sediment analyzer, X-ray diffraction (XRD), chemical analysis (bulk and surface), SEM microscopy and Raman “microprobe” spectroscopy. On the other hand, the physicochemical behavior of the pyroclastic material allows us to suggest eventual applications.Centro de Química InorgánicaInstituto de Recursos Minerales2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf302-315http://sedici.unlp.edu.ar/handle/10915/120341enginfo:eu-repo/semantics/altIdentifier/issn/2162-5328info:eu-repo/semantics/altIdentifier/doi/10.4236/ampc.2015.58030info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:29Zoai:sedici.unlp.edu.ar:10915/120341Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:29.723SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
title Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
spellingShingle Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
Botto, Irma Lía
Química
Pyroclastic materials
Chemical composition
Mineralogy
Sem microscopy
Raman spectroscopy
title_short Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
title_full Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
title_fullStr Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
title_full_unstemmed Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
title_sort Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis
dc.creator.none.fl_str_mv Botto, Irma Lía
Barone, Vicente
Canafoglia, María Elena
Rovere, Elizabeth
Violante, Roberto
González, María José
Gazzoli, Delia
Schalamuk, Isidoro Bernardo
author Botto, Irma Lía
author_facet Botto, Irma Lía
Barone, Vicente
Canafoglia, María Elena
Rovere, Elizabeth
Violante, Roberto
González, María José
Gazzoli, Delia
Schalamuk, Isidoro Bernardo
author_role author
author2 Barone, Vicente
Canafoglia, María Elena
Rovere, Elizabeth
Violante, Roberto
González, María José
Gazzoli, Delia
Schalamuk, Isidoro Bernardo
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Química
Pyroclastic materials
Chemical composition
Mineralogy
Sem microscopy
Raman spectroscopy
topic Química
Pyroclastic materials
Chemical composition
Mineralogy
Sem microscopy
Raman spectroscopy
dc.description.none.fl_txt_mv The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently reported for the magma storage and its ascent conditions. The eruption started June 4th 2011, and the studied volcanic material corresponds to that collected in Argentine territory at different distances from the source, between 4 and 12 June 2011. The explosive-effusive volcanic process of the first days occurred with the simultaneous emplacement of lava flows and the venting of pyroclastic material, ejecting two well differentiated types of particles. The more abundant was constituted by rhyolitic and light color pumice fragments, characterized by a typical vesicular texture, easy fragmentation and absence of occluded crystalline phases. Particles found in minor proportion were dark color, different in shape and texture and rich in Fe and Ti. They seemed to be more effective for the interaction with emitted gases in the upper part of the column, for this reason, they appeared partially covered by condensation products. The ascent conditions of the magma affected its rheological behavior through variations in the degassing, viscosity and fragmentation. On the other hand, distance to the source, depositional time, volcanic evolution and environmental conditions are factors that affect the chemical composition of collected ash. So, the SiO2/FeO ratio not only increases with the distance but also with the deposition time and volcanic activity. The work was done with the aid of several techniques such as a laser-sediment analyzer, X-ray diffraction (XRD), chemical analysis (bulk and surface), SEM microscopy and Raman “microprobe” spectroscopy. On the other hand, the physicochemical behavior of the pyroclastic material allows us to suggest eventual applications.
Centro de Química Inorgánica
Instituto de Recursos Minerales
description The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently reported for the magma storage and its ascent conditions. The eruption started June 4th 2011, and the studied volcanic material corresponds to that collected in Argentine territory at different distances from the source, between 4 and 12 June 2011. The explosive-effusive volcanic process of the first days occurred with the simultaneous emplacement of lava flows and the venting of pyroclastic material, ejecting two well differentiated types of particles. The more abundant was constituted by rhyolitic and light color pumice fragments, characterized by a typical vesicular texture, easy fragmentation and absence of occluded crystalline phases. Particles found in minor proportion were dark color, different in shape and texture and rich in Fe and Ti. They seemed to be more effective for the interaction with emitted gases in the upper part of the column, for this reason, they appeared partially covered by condensation products. The ascent conditions of the magma affected its rheological behavior through variations in the degassing, viscosity and fragmentation. On the other hand, distance to the source, depositional time, volcanic evolution and environmental conditions are factors that affect the chemical composition of collected ash. So, the SiO2/FeO ratio not only increases with the distance but also with the deposition time and volcanic activity. The work was done with the aid of several techniques such as a laser-sediment analyzer, X-ray diffraction (XRD), chemical analysis (bulk and surface), SEM microscopy and Raman “microprobe” spectroscopy. On the other hand, the physicochemical behavior of the pyroclastic material allows us to suggest eventual applications.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/120341
url http://sedici.unlp.edu.ar/handle/10915/120341
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2162-5328
info:eu-repo/semantics/altIdentifier/doi/10.4236/ampc.2015.58030
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
302-315
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instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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