Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador

Autores
Sierra Vaca, Daniel Esteban; Hidalgo, Silvana; Almeida, Marco; Vigide, Nicolás Carlos; Lamberti, María Clara Isabel; Proaño, Antonio; Narváez, Diego F.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cuicocha Caldera is the youngest eruptive center of Cotacachi-Cuicocha Volcanic Complex, located at the north of Ecuador. The caldera contains a lake of 3.95 km2 surface, and a maximum depth of 148 m. Cuicocha Lake is characterized by the presence of CO2 gaseous diffuse emissions, perceptible as bubbling zones. Since 2011, CO2 diffuse flux measurements have been performed in this lake using the accumulation chamber method. The data obtained from twenty surveys were processed by means of the Graphical Statistical Approach and the Sequential Gaussian Simulation. The results reveal that Cuicocha lake has released a total estimated amount of ~400 kt of CO2 in the period between March 2011 and May 2019, with an average rate of 135 t/day. Furthermore, the spatial and temporal analysis of the data made possible the understanding of the processes occurring in the lake: 1) Lake stratification caused by the seasons seem to favor CO2 accumulation in the hipolimnion and its posterior releasing. Minimum total flux values of ~50 t/day have been estimated during “warm” stratified periods and maximum flux values of ~170 t/day have been recorded during “cold” overturn periods. Additionally, at least two anomalous degassing episodes were identified in 2012–2013, seemingly associated to changes in the volcanic activity also detected through seismicity. 2) Cuicocha CO2 degassing seems to be controlled by the existence of diffuse degassing structures at the lake bottom, which correspond to high permeability zones resulting from the intersection between ~NE-SW and ~WNW-ESE oriented structures. We propose a conceptual model to explain the systematic apparition of CO2 anomalies on specific areas of the lake surface.
Fil: Sierra Vaca, Daniel Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Hidalgo, Silvana. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Almeida, Marco. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Vigide, Nicolás Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Lamberti, María Clara Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Proaño, Antonio. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Narváez, Diego F.. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Materia
CARBON DIOXIDE
COTACACHI CUICOCHA VOLCANIC COMPLEX
CRATER LAKE
CUICOCHA
DIFFUSE DEGASSING
Nivel de accesibilidad
acceso embargado
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:11336/123899
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – EcuadorSierra Vaca, Daniel EstebanHidalgo, SilvanaAlmeida, MarcoVigide, Nicolás CarlosLamberti, María Clara IsabelProaño, AntonioNarváez, Diego F.CARBON DIOXIDECOTACACHI CUICOCHA VOLCANIC COMPLEXCRATER LAKECUICOCHADIFFUSE DEGASSINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Cuicocha Caldera is the youngest eruptive center of Cotacachi-Cuicocha Volcanic Complex, located at the north of Ecuador. The caldera contains a lake of 3.95 km2 surface, and a maximum depth of 148 m. Cuicocha Lake is characterized by the presence of CO2 gaseous diffuse emissions, perceptible as bubbling zones. Since 2011, CO2 diffuse flux measurements have been performed in this lake using the accumulation chamber method. The data obtained from twenty surveys were processed by means of the Graphical Statistical Approach and the Sequential Gaussian Simulation. The results reveal that Cuicocha lake has released a total estimated amount of ~400 kt of CO2 in the period between March 2011 and May 2019, with an average rate of 135 t/day. Furthermore, the spatial and temporal analysis of the data made possible the understanding of the processes occurring in the lake: 1) Lake stratification caused by the seasons seem to favor CO2 accumulation in the hipolimnion and its posterior releasing. Minimum total flux values of ~50 t/day have been estimated during “warm” stratified periods and maximum flux values of ~170 t/day have been recorded during “cold” overturn periods. Additionally, at least two anomalous degassing episodes were identified in 2012–2013, seemingly associated to changes in the volcanic activity also detected through seismicity. 2) Cuicocha CO2 degassing seems to be controlled by the existence of diffuse degassing structures at the lake bottom, which correspond to high permeability zones resulting from the intersection between ~NE-SW and ~WNW-ESE oriented structures. We propose a conceptual model to explain the systematic apparition of CO2 anomalies on specific areas of the lake surface.Fil: Sierra Vaca, Daniel Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Instituto Geofísico de la Escuela Politécnica Nacional; EcuadorFil: Hidalgo, Silvana. Instituto Geofísico de la Escuela Politécnica Nacional; EcuadorFil: Almeida, Marco. Instituto Geofísico de la Escuela Politécnica Nacional; EcuadorFil: Vigide, Nicolás Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Lamberti, María Clara Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Proaño, Antonio. Instituto Geofísico de la Escuela Politécnica Nacional; EcuadorFil: Narváez, Diego F.. Instituto Geofísico de la Escuela Politécnica Nacional; EcuadorElsevier Science2021-03info:eu-repo/date/embargoEnd/2021-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/123899Sierra Vaca, Daniel Esteban; Hidalgo, Silvana; Almeida, Marco; Vigide, Nicolás Carlos; Lamberti, María Clara Isabel; et al.; Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador; Elsevier Science; Journal of Volcanology and Geothermal Research; 411; 3-2021; 1-17; 1071450377-0273CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0377027320305813info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2020.107145info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:35:25Zoai:ri.conicet.gov.ar:11336/123899instacron: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:34982025-10-15 14:35:25.638CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
title Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
spellingShingle Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
Sierra Vaca, Daniel Esteban
CARBON DIOXIDE
COTACACHI CUICOCHA VOLCANIC COMPLEX
CRATER LAKE
CUICOCHA
DIFFUSE DEGASSING
title_short Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
title_full Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
title_fullStr Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
title_full_unstemmed Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
title_sort Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador
dc.creator.none.fl_str_mv Sierra Vaca, Daniel Esteban
Hidalgo, Silvana
Almeida, Marco
Vigide, Nicolás Carlos
Lamberti, María Clara Isabel
Proaño, Antonio
Narváez, Diego F.
author Sierra Vaca, Daniel Esteban
author_facet Sierra Vaca, Daniel Esteban
Hidalgo, Silvana
Almeida, Marco
Vigide, Nicolás Carlos
Lamberti, María Clara Isabel
Proaño, Antonio
Narváez, Diego F.
author_role author
author2 Hidalgo, Silvana
Almeida, Marco
Vigide, Nicolás Carlos
Lamberti, María Clara Isabel
Proaño, Antonio
Narváez, Diego F.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv CARBON DIOXIDE
COTACACHI CUICOCHA VOLCANIC COMPLEX
CRATER LAKE
CUICOCHA
DIFFUSE DEGASSING
topic CARBON DIOXIDE
COTACACHI CUICOCHA VOLCANIC COMPLEX
CRATER LAKE
CUICOCHA
DIFFUSE DEGASSING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cuicocha Caldera is the youngest eruptive center of Cotacachi-Cuicocha Volcanic Complex, located at the north of Ecuador. The caldera contains a lake of 3.95 km2 surface, and a maximum depth of 148 m. Cuicocha Lake is characterized by the presence of CO2 gaseous diffuse emissions, perceptible as bubbling zones. Since 2011, CO2 diffuse flux measurements have been performed in this lake using the accumulation chamber method. The data obtained from twenty surveys were processed by means of the Graphical Statistical Approach and the Sequential Gaussian Simulation. The results reveal that Cuicocha lake has released a total estimated amount of ~400 kt of CO2 in the period between March 2011 and May 2019, with an average rate of 135 t/day. Furthermore, the spatial and temporal analysis of the data made possible the understanding of the processes occurring in the lake: 1) Lake stratification caused by the seasons seem to favor CO2 accumulation in the hipolimnion and its posterior releasing. Minimum total flux values of ~50 t/day have been estimated during “warm” stratified periods and maximum flux values of ~170 t/day have been recorded during “cold” overturn periods. Additionally, at least two anomalous degassing episodes were identified in 2012–2013, seemingly associated to changes in the volcanic activity also detected through seismicity. 2) Cuicocha CO2 degassing seems to be controlled by the existence of diffuse degassing structures at the lake bottom, which correspond to high permeability zones resulting from the intersection between ~NE-SW and ~WNW-ESE oriented structures. We propose a conceptual model to explain the systematic apparition of CO2 anomalies on specific areas of the lake surface.
Fil: Sierra Vaca, Daniel Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Hidalgo, Silvana. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Almeida, Marco. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Vigide, Nicolás Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Lamberti, María Clara Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Proaño, Antonio. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
Fil: Narváez, Diego F.. Instituto Geofísico de la Escuela Politécnica Nacional; Ecuador
description Cuicocha Caldera is the youngest eruptive center of Cotacachi-Cuicocha Volcanic Complex, located at the north of Ecuador. The caldera contains a lake of 3.95 km2 surface, and a maximum depth of 148 m. Cuicocha Lake is characterized by the presence of CO2 gaseous diffuse emissions, perceptible as bubbling zones. Since 2011, CO2 diffuse flux measurements have been performed in this lake using the accumulation chamber method. The data obtained from twenty surveys were processed by means of the Graphical Statistical Approach and the Sequential Gaussian Simulation. The results reveal that Cuicocha lake has released a total estimated amount of ~400 kt of CO2 in the period between March 2011 and May 2019, with an average rate of 135 t/day. Furthermore, the spatial and temporal analysis of the data made possible the understanding of the processes occurring in the lake: 1) Lake stratification caused by the seasons seem to favor CO2 accumulation in the hipolimnion and its posterior releasing. Minimum total flux values of ~50 t/day have been estimated during “warm” stratified periods and maximum flux values of ~170 t/day have been recorded during “cold” overturn periods. Additionally, at least two anomalous degassing episodes were identified in 2012–2013, seemingly associated to changes in the volcanic activity also detected through seismicity. 2) Cuicocha CO2 degassing seems to be controlled by the existence of diffuse degassing structures at the lake bottom, which correspond to high permeability zones resulting from the intersection between ~NE-SW and ~WNW-ESE oriented structures. We propose a conceptual model to explain the systematic apparition of CO2 anomalies on specific areas of the lake surface.
publishDate 2021
dc.date.none.fl_str_mv 2021-03
info:eu-repo/date/embargoEnd/2021-09-30
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/11336/123899
Sierra Vaca, Daniel Esteban; Hidalgo, Silvana; Almeida, Marco; Vigide, Nicolás Carlos; Lamberti, María Clara Isabel; et al.; Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador; Elsevier Science; Journal of Volcanology and Geothermal Research; 411; 3-2021; 1-17; 107145
0377-0273
CONICET Digital
CONICET
url http://hdl.handle.net/11336/123899
identifier_str_mv Sierra Vaca, Daniel Esteban; Hidalgo, Silvana; Almeida, Marco; Vigide, Nicolás Carlos; Lamberti, María Clara Isabel; et al.; Temporal and spatial variations of CO2 diffuse volcanic degassing on Cuicocha Caldera Lake – Ecuador; Elsevier Science; Journal of Volcanology and Geothermal Research; 411; 3-2021; 1-17; 107145
0377-0273
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/S0377027320305813
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2020.107145
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv embargoedAccess
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
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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