Fluorine surface speciation in South Andean volcanic ashes

Autores
Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Zampieri, Guillermo Enrique; Garcia, Maria Gabriela
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fresh volcanic ash samples collected during the eruptions of the Hudson (1991), Chaitén (2008), Puyehue (2011), Calbuco (2015) and Copahue (2016) volcanoes were analyzed in order to identify the fluorine (F) bearing phases. XPS and HR-TEM was used to determine the solid speciation of F. In order to decrease the surface differential charging of samples, XPS data have been collected using an electron flood gun during spectral acquisition. Ash leaching at different pH conditions was also performed with the aim of understanding the factors that control the fluoride release to aqueous reservoirs. The results indicates that in the studied Patagonian ashes, F is concentrated onto the ash surface, likely in the form of Fsingle bondNa and Fsingle bondCa salts but also within the glass lattice forming Fsingle bondSi and Fsingle bondAl bonds. Although the main F-source in the studied volcanic ashes is the aluminosilicate glass, this phase is stable at the neutral pH that dominates the aqueous reservoirs, thus the contribution to the pool of dissolved fluoride is minor. Higher contributions are associated with soluble fluoride salts. In addition, the presence of coatings of Fsingle bondCa compounds inhibits the release of fluoride within the volcanic glass lattice, at least during the initial stages of the ash-water interaction.
Fil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Zampieri, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
DIFFERENTIAL CHARGING
GEOGENIC FLUORIDE
SURFACE SPECIATION
VOLCANIC GLASS
X-RAY PHOTOELECTRON SPECTROSCOPY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/141994
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fluorine surface speciation in South Andean volcanic ashesBia, Gonzalo LuisBorgnino Bianchi, Laura CarolinaZampieri, Guillermo EnriqueGarcia, Maria GabrielaDIFFERENTIAL CHARGINGGEOGENIC FLUORIDESURFACE SPECIATIONVOLCANIC GLASSX-RAY PHOTOELECTRON SPECTROSCOPYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Fresh volcanic ash samples collected during the eruptions of the Hudson (1991), Chaitén (2008), Puyehue (2011), Calbuco (2015) and Copahue (2016) volcanoes were analyzed in order to identify the fluorine (F) bearing phases. XPS and HR-TEM was used to determine the solid speciation of F. In order to decrease the surface differential charging of samples, XPS data have been collected using an electron flood gun during spectral acquisition. Ash leaching at different pH conditions was also performed with the aim of understanding the factors that control the fluoride release to aqueous reservoirs. The results indicates that in the studied Patagonian ashes, F is concentrated onto the ash surface, likely in the form of Fsingle bondNa and Fsingle bondCa salts but also within the glass lattice forming Fsingle bondSi and Fsingle bondAl bonds. Although the main F-source in the studied volcanic ashes is the aluminosilicate glass, this phase is stable at the neutral pH that dominates the aqueous reservoirs, thus the contribution to the pool of dissolved fluoride is minor. Higher contributions are associated with soluble fluoride salts. In addition, the presence of coatings of Fsingle bondCa compounds inhibits the release of fluoride within the volcanic glass lattice, at least during the initial stages of the ash-water interaction.Fil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Zampieri, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaElsevier Science2020-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/141994Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Zampieri, Guillermo Enrique; Garcia, Maria Gabriela; Fluorine surface speciation in South Andean volcanic ashes; Elsevier Science; Chemical Geology; 352; 1-2020; 1-110009-2541CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0009254119305315info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemgeo.2019.119402info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:30Zoai:ri.conicet.gov.ar:11336/141994instacron: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 09:55:30.493CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fluorine surface speciation in South Andean volcanic ashes
title Fluorine surface speciation in South Andean volcanic ashes
spellingShingle Fluorine surface speciation in South Andean volcanic ashes
Bia, Gonzalo Luis
DIFFERENTIAL CHARGING
GEOGENIC FLUORIDE
SURFACE SPECIATION
VOLCANIC GLASS
X-RAY PHOTOELECTRON SPECTROSCOPY
title_short Fluorine surface speciation in South Andean volcanic ashes
title_full Fluorine surface speciation in South Andean volcanic ashes
title_fullStr Fluorine surface speciation in South Andean volcanic ashes
title_full_unstemmed Fluorine surface speciation in South Andean volcanic ashes
title_sort Fluorine surface speciation in South Andean volcanic ashes
dc.creator.none.fl_str_mv Bia, Gonzalo Luis
Borgnino Bianchi, Laura Carolina
Zampieri, Guillermo Enrique
Garcia, Maria Gabriela
author Bia, Gonzalo Luis
author_facet Bia, Gonzalo Luis
Borgnino Bianchi, Laura Carolina
Zampieri, Guillermo Enrique
Garcia, Maria Gabriela
author_role author
author2 Borgnino Bianchi, Laura Carolina
Zampieri, Guillermo Enrique
Garcia, Maria Gabriela
author2_role author
author
author
dc.subject.none.fl_str_mv DIFFERENTIAL CHARGING
GEOGENIC FLUORIDE
SURFACE SPECIATION
VOLCANIC GLASS
X-RAY PHOTOELECTRON SPECTROSCOPY
topic DIFFERENTIAL CHARGING
GEOGENIC FLUORIDE
SURFACE SPECIATION
VOLCANIC GLASS
X-RAY PHOTOELECTRON SPECTROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Fresh volcanic ash samples collected during the eruptions of the Hudson (1991), Chaitén (2008), Puyehue (2011), Calbuco (2015) and Copahue (2016) volcanoes were analyzed in order to identify the fluorine (F) bearing phases. XPS and HR-TEM was used to determine the solid speciation of F. In order to decrease the surface differential charging of samples, XPS data have been collected using an electron flood gun during spectral acquisition. Ash leaching at different pH conditions was also performed with the aim of understanding the factors that control the fluoride release to aqueous reservoirs. The results indicates that in the studied Patagonian ashes, F is concentrated onto the ash surface, likely in the form of Fsingle bondNa and Fsingle bondCa salts but also within the glass lattice forming Fsingle bondSi and Fsingle bondAl bonds. Although the main F-source in the studied volcanic ashes is the aluminosilicate glass, this phase is stable at the neutral pH that dominates the aqueous reservoirs, thus the contribution to the pool of dissolved fluoride is minor. Higher contributions are associated with soluble fluoride salts. In addition, the presence of coatings of Fsingle bondCa compounds inhibits the release of fluoride within the volcanic glass lattice, at least during the initial stages of the ash-water interaction.
Fil: Bia, Gonzalo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Borgnino Bianchi, Laura Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Zampieri, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Garcia, Maria Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description Fresh volcanic ash samples collected during the eruptions of the Hudson (1991), Chaitén (2008), Puyehue (2011), Calbuco (2015) and Copahue (2016) volcanoes were analyzed in order to identify the fluorine (F) bearing phases. XPS and HR-TEM was used to determine the solid speciation of F. In order to decrease the surface differential charging of samples, XPS data have been collected using an electron flood gun during spectral acquisition. Ash leaching at different pH conditions was also performed with the aim of understanding the factors that control the fluoride release to aqueous reservoirs. The results indicates that in the studied Patagonian ashes, F is concentrated onto the ash surface, likely in the form of Fsingle bondNa and Fsingle bondCa salts but also within the glass lattice forming Fsingle bondSi and Fsingle bondAl bonds. Although the main F-source in the studied volcanic ashes is the aluminosilicate glass, this phase is stable at the neutral pH that dominates the aqueous reservoirs, thus the contribution to the pool of dissolved fluoride is minor. Higher contributions are associated with soluble fluoride salts. In addition, the presence of coatings of Fsingle bondCa compounds inhibits the release of fluoride within the volcanic glass lattice, at least during the initial stages of the ash-water interaction.
publishDate 2020
dc.date.none.fl_str_mv 2020-01
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/11336/141994
Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Zampieri, Guillermo Enrique; Garcia, Maria Gabriela; Fluorine surface speciation in South Andean volcanic ashes; Elsevier Science; Chemical Geology; 352; 1-2020; 1-11
0009-2541
CONICET Digital
CONICET
url http://hdl.handle.net/11336/141994
identifier_str_mv Bia, Gonzalo Luis; Borgnino Bianchi, Laura Carolina; Zampieri, Guillermo Enrique; Garcia, Maria Gabriela; Fluorine surface speciation in South Andean volcanic ashes; Elsevier Science; Chemical Geology; 352; 1-2020; 1-11
0009-2541
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0009254119305315
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemgeo.2019.119402
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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