Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology

Autores
Bertrand, Sébastien; Daga, Romina Betiana; Bedert, Robin; Fontijn, Karen
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Tephras preserved in lake sediments are commonly used to synchronize sedimentary archives of climate and environmental change and to correlate them with terrestrial environments. They also provide opportunities to reconstruct volcanic explosive activity, e.g., eruption frequency and tephra dispersal. Although sedimentary processes may affect the record of tephras in lakes, lake sediments are generally considered as one of the best archives of tephra stratigraphy. The 2011–2012 eruption of Cordón Caulle volcano (Chile, 40°S) offered an ideal opportunity to study the processes affecting tephra deposition in lakes. Although the prevailing westerlies transported the erupted pyroclastic material away from nearby Puyehue Lake, the tephra was identified within this relatively large lake with a thickness ranging from 1 to >10 cm. This is in contrast with smaller lakes, where tephra thickness was in agreement with ashfall distribution maps. Geomorphological observations and sedimentological analyses provide evidence that the tephra deposited in Puyehue Lake entirely consists of material reworked from the upper watershed, transported by rivers, and distributed by lake currents according to particle size and density. Our results have important implications for tephrochronology and volcanology. They suggest that (1) lakes do not act as passive tephra traps; (2) lakes with large watersheds record more eruptions than smaller lakes, which only register direct ashfalls, affecting conclusions regarding the recurrence of volcanic eruptions; and (3) using lakes with large watersheds for isopach mapping systematically leads to an overestimation of erupted tephra volumes. Smaller lakes with limited drainage basins are generally better suited for volcanological studies.
Fil: Bertrand, Sébastien. University of Ghent; Bélgica
Fil: Daga, Romina Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Ingeniería Nuclear. Laboratorio de Análisis por Activación Neutrónica; Argentina
Fil: Bedert, Robin. University of Ghent; Bélgica
Fil: Fontijn, Karen. University of Ghent; Bélgica. University of Oxford; Reino Unido
Materia
VOLCANIC ASHES
PUMICE
LAKE CURRENTS
SEDIMENT TRANSPORT
PUYEHUE LAKE
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:11336/180546

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network_name_str CONICET Digital (CONICET)
spelling Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanologyBertrand, SébastienDaga, Romina BetianaBedert, RobinFontijn, KarenVOLCANIC ASHESPUMICELAKE CURRENTSSEDIMENT TRANSPORTPUYEHUE LAKEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Tephras preserved in lake sediments are commonly used to synchronize sedimentary archives of climate and environmental change and to correlate them with terrestrial environments. They also provide opportunities to reconstruct volcanic explosive activity, e.g., eruption frequency and tephra dispersal. Although sedimentary processes may affect the record of tephras in lakes, lake sediments are generally considered as one of the best archives of tephra stratigraphy. The 2011–2012 eruption of Cordón Caulle volcano (Chile, 40°S) offered an ideal opportunity to study the processes affecting tephra deposition in lakes. Although the prevailing westerlies transported the erupted pyroclastic material away from nearby Puyehue Lake, the tephra was identified within this relatively large lake with a thickness ranging from 1 to >10 cm. This is in contrast with smaller lakes, where tephra thickness was in agreement with ashfall distribution maps. Geomorphological observations and sedimentological analyses provide evidence that the tephra deposited in Puyehue Lake entirely consists of material reworked from the upper watershed, transported by rivers, and distributed by lake currents according to particle size and density. Our results have important implications for tephrochronology and volcanology. They suggest that (1) lakes do not act as passive tephra traps; (2) lakes with large watersheds record more eruptions than smaller lakes, which only register direct ashfalls, affecting conclusions regarding the recurrence of volcanic eruptions; and (3) using lakes with large watersheds for isopach mapping systematically leads to an overestimation of erupted tephra volumes. Smaller lakes with limited drainage basins are generally better suited for volcanological studies.Fil: Bertrand, Sébastien. University of Ghent; BélgicaFil: Daga, Romina Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Ingeniería Nuclear. Laboratorio de Análisis por Activación Neutrónica; ArgentinaFil: Bedert, Robin. University of Ghent; BélgicaFil: Fontijn, Karen. University of Ghent; Bélgica. University of Oxford; Reino UnidoWiley Blackwell Publishing, Inc2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/180546Bertrand, Sébastien; Daga, Romina Betiana; Bedert, Robin; Fontijn, Karen; Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology; Wiley Blackwell Publishing, Inc; Journal of Geophysical Research; 119; 12; 12-2014; 2555-25730148-02272169-9011CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/2014JF003321info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014JF003321info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:17Zoai:ri.conicet.gov.ar:11336/180546instacron: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:34982025-09-29 10:00:18.168CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
title Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
spellingShingle Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
Bertrand, Sébastien
VOLCANIC ASHES
PUMICE
LAKE CURRENTS
SEDIMENT TRANSPORT
PUYEHUE LAKE
title_short Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
title_full Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
title_fullStr Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
title_full_unstemmed Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
title_sort Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
dc.creator.none.fl_str_mv Bertrand, Sébastien
Daga, Romina Betiana
Bedert, Robin
Fontijn, Karen
author Bertrand, Sébastien
author_facet Bertrand, Sébastien
Daga, Romina Betiana
Bedert, Robin
Fontijn, Karen
author_role author
author2 Daga, Romina Betiana
Bedert, Robin
Fontijn, Karen
author2_role author
author
author
dc.subject.none.fl_str_mv VOLCANIC ASHES
PUMICE
LAKE CURRENTS
SEDIMENT TRANSPORT
PUYEHUE LAKE
topic VOLCANIC ASHES
PUMICE
LAKE CURRENTS
SEDIMENT TRANSPORT
PUYEHUE LAKE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Tephras preserved in lake sediments are commonly used to synchronize sedimentary archives of climate and environmental change and to correlate them with terrestrial environments. They also provide opportunities to reconstruct volcanic explosive activity, e.g., eruption frequency and tephra dispersal. Although sedimentary processes may affect the record of tephras in lakes, lake sediments are generally considered as one of the best archives of tephra stratigraphy. The 2011–2012 eruption of Cordón Caulle volcano (Chile, 40°S) offered an ideal opportunity to study the processes affecting tephra deposition in lakes. Although the prevailing westerlies transported the erupted pyroclastic material away from nearby Puyehue Lake, the tephra was identified within this relatively large lake with a thickness ranging from 1 to >10 cm. This is in contrast with smaller lakes, where tephra thickness was in agreement with ashfall distribution maps. Geomorphological observations and sedimentological analyses provide evidence that the tephra deposited in Puyehue Lake entirely consists of material reworked from the upper watershed, transported by rivers, and distributed by lake currents according to particle size and density. Our results have important implications for tephrochronology and volcanology. They suggest that (1) lakes do not act as passive tephra traps; (2) lakes with large watersheds record more eruptions than smaller lakes, which only register direct ashfalls, affecting conclusions regarding the recurrence of volcanic eruptions; and (3) using lakes with large watersheds for isopach mapping systematically leads to an overestimation of erupted tephra volumes. Smaller lakes with limited drainage basins are generally better suited for volcanological studies.
Fil: Bertrand, Sébastien. University of Ghent; Bélgica
Fil: Daga, Romina Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Ingeniería Nuclear. Laboratorio de Análisis por Activación Neutrónica; Argentina
Fil: Bedert, Robin. University of Ghent; Bélgica
Fil: Fontijn, Karen. University of Ghent; Bélgica. University of Oxford; Reino Unido
description Tephras preserved in lake sediments are commonly used to synchronize sedimentary archives of climate and environmental change and to correlate them with terrestrial environments. They also provide opportunities to reconstruct volcanic explosive activity, e.g., eruption frequency and tephra dispersal. Although sedimentary processes may affect the record of tephras in lakes, lake sediments are generally considered as one of the best archives of tephra stratigraphy. The 2011–2012 eruption of Cordón Caulle volcano (Chile, 40°S) offered an ideal opportunity to study the processes affecting tephra deposition in lakes. Although the prevailing westerlies transported the erupted pyroclastic material away from nearby Puyehue Lake, the tephra was identified within this relatively large lake with a thickness ranging from 1 to >10 cm. This is in contrast with smaller lakes, where tephra thickness was in agreement with ashfall distribution maps. Geomorphological observations and sedimentological analyses provide evidence that the tephra deposited in Puyehue Lake entirely consists of material reworked from the upper watershed, transported by rivers, and distributed by lake currents according to particle size and density. Our results have important implications for tephrochronology and volcanology. They suggest that (1) lakes do not act as passive tephra traps; (2) lakes with large watersheds record more eruptions than smaller lakes, which only register direct ashfalls, affecting conclusions regarding the recurrence of volcanic eruptions; and (3) using lakes with large watersheds for isopach mapping systematically leads to an overestimation of erupted tephra volumes. Smaller lakes with limited drainage basins are generally better suited for volcanological studies.
publishDate 2014
dc.date.none.fl_str_mv 2014-12
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/11336/180546
Bertrand, Sébastien; Daga, Romina Betiana; Bedert, Robin; Fontijn, Karen; Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology; Wiley Blackwell Publishing, Inc; Journal of Geophysical Research; 119; 12; 12-2014; 2555-2573
0148-0227
2169-9011
CONICET Digital
CONICET
url http://hdl.handle.net/11336/180546
identifier_str_mv Bertrand, Sébastien; Daga, Romina Betiana; Bedert, Robin; Fontijn, Karen; Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology; Wiley Blackwell Publishing, Inc; Journal of Geophysical Research; 119; 12; 12-2014; 2555-2573
0148-0227
2169-9011
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/2014JF003321
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014JF003321
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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