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dc.contributor.author
Bertrand, Sébastien
dc.contributor.author
Daga, Romina Betiana
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dc.contributor.author
Bedert, Robin
dc.contributor.author
Fontijn, Karen
dc.date.available
2022-12-07T15:09:19Z
dc.date.issued
2014-12
dc.identifier.citation
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
dc.identifier.issn
0148-0227
dc.identifier.uri
http://hdl.handle.net/11336/180546
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
VOLCANIC ASHES
dc.subject
PUMICE
dc.subject
LAKE CURRENTS
dc.subject
SEDIMENT TRANSPORT
dc.subject
PUYEHUE LAKE
dc.subject.classification
Vulcanología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Deposition of the 2011-2012 Cordõn Caulle tephra (Chile, 40S) in lake sediments: Implications for tephrochronology and volcanology
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-12-06T17:16:14Z
dc.identifier.eissn
2169-9011
dc.journal.volume
119
dc.journal.number
12
dc.journal.pagination
2555-2573
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Nueva Jersey
dc.description.fil
Fil: Bertrand, Sébastien. University of Ghent; Bélgica
dc.description.fil
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
dc.description.fil
Fil: Bedert, Robin. University of Ghent; Bélgica
dc.description.fil
Fil: Fontijn, Karen. University of Ghent; Bélgica. University of Oxford; Reino Unido
dc.journal.title
Journal of Geophysical Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/2014JF003321
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014JF003321
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