Possible Icelandic Tephra Found in European Colle Gnifetti Glacier
Volcanic ash (tephra) provides unique time markers (isochrons) that are often used as an independent age-control tool for stratigraphic correlations of paleoclimate archives from ice cores. However, little credence has been given to the notion of finding tephra in ice cores collected in the European...
Published in: | Geochemistry, Geophysics, Geosystems |
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Online Access: | https://hdl.handle.net/10278/5014702 https://doi.org/10.1002/2017GC007022 |
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ftuniveneziairis:oai:iris.unive.it:10278/5014702 2024-04-14T08:13:03+00:00 Possible Icelandic Tephra Found in European Colle Gnifetti Glacier Luongo M. T. Kurbatov A. V. Erhardt T. Mayewski P. A. McCormick M. More A. F. Spaulding N. E. Wheatley S. D. Yates M. G. Bohleber P. Luongo, M. T. Kurbatov, A. V. Erhardt, T. Mayewski, P. A. Mccormick, M. More, A. F. Spaulding, N. E. Wheatley, S. D. Yates, M. G. Bohleber, P. 2017 https://hdl.handle.net/10278/5014702 https://doi.org/10.1002/2017GC007022 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000418403800009 volume:18 issue:11 firstpage:3904 lastpage:3909 numberofpages:6 journal:GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS https://hdl.handle.net/10278/5014702 doi:10.1002/2017GC007022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85038394167 geochemistry ice core tephra Settore GEO/08 - Geochimica e Vulcanologia info:eu-repo/semantics/article 2017 ftuniveneziairis https://doi.org/10.1002/2017GC007022 2024-03-21T18:11:36Z Volcanic ash (tephra) provides unique time markers (isochrons) that are often used as an independent age-control tool for stratigraphic correlations of paleoclimate archives from ice cores. However, little credence has been given to the notion of finding tephra in ice cores collected in the European Alps because of the relatively large distance from volcanic sources and the presumed nature of regional atmospheric circulation patterns. We filtered particles from melted ice core drilling chips gathered roughly every meter during a 2013 drilling operation at Colle Gnifetti glacier in the Swiss-Italian Alps (45°55.74′N, 7°52.58′E, 4450 m asl). One filter, preliminarily dated to the nineteenth century by annual layer counting, contained a group of six visually similar tephra particles. Analyzing their chemistry using a scanning electron microscope equipped with an energy-dispersive x-ray spectrometer established that the six particles were volcanic in origin and are very similar in composition (a distinctive geochemical signature), pointing to a single volcanic eruption source. We proposed that one of several massive nineteenth century Eastern Icelandic eruptions is a potential source given eruption timing, size, tephra dispersion area, and similarities in chemical composition. This first finding of tephra in an Alpine ice core contributes to a regional tephrochronological framework that can be adapted for future correlation among different paleoclimate sequences. Article in Journal/Newspaper ice core Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Geochemistry, Geophysics, Geosystems 18 11 3904 3909 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
geochemistry ice core tephra Settore GEO/08 - Geochimica e Vulcanologia |
spellingShingle |
geochemistry ice core tephra Settore GEO/08 - Geochimica e Vulcanologia Luongo M. T. Kurbatov A. V. Erhardt T. Mayewski P. A. McCormick M. More A. F. Spaulding N. E. Wheatley S. D. Yates M. G. Bohleber P. Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
topic_facet |
geochemistry ice core tephra Settore GEO/08 - Geochimica e Vulcanologia |
description |
Volcanic ash (tephra) provides unique time markers (isochrons) that are often used as an independent age-control tool for stratigraphic correlations of paleoclimate archives from ice cores. However, little credence has been given to the notion of finding tephra in ice cores collected in the European Alps because of the relatively large distance from volcanic sources and the presumed nature of regional atmospheric circulation patterns. We filtered particles from melted ice core drilling chips gathered roughly every meter during a 2013 drilling operation at Colle Gnifetti glacier in the Swiss-Italian Alps (45°55.74′N, 7°52.58′E, 4450 m asl). One filter, preliminarily dated to the nineteenth century by annual layer counting, contained a group of six visually similar tephra particles. Analyzing their chemistry using a scanning electron microscope equipped with an energy-dispersive x-ray spectrometer established that the six particles were volcanic in origin and are very similar in composition (a distinctive geochemical signature), pointing to a single volcanic eruption source. We proposed that one of several massive nineteenth century Eastern Icelandic eruptions is a potential source given eruption timing, size, tephra dispersion area, and similarities in chemical composition. This first finding of tephra in an Alpine ice core contributes to a regional tephrochronological framework that can be adapted for future correlation among different paleoclimate sequences. |
author2 |
Luongo, M. T. Kurbatov, A. V. Erhardt, T. Mayewski, P. A. Mccormick, M. More, A. F. Spaulding, N. E. Wheatley, S. D. Yates, M. G. Bohleber, P. |
format |
Article in Journal/Newspaper |
author |
Luongo M. T. Kurbatov A. V. Erhardt T. Mayewski P. A. McCormick M. More A. F. Spaulding N. E. Wheatley S. D. Yates M. G. Bohleber P. |
author_facet |
Luongo M. T. Kurbatov A. V. Erhardt T. Mayewski P. A. McCormick M. More A. F. Spaulding N. E. Wheatley S. D. Yates M. G. Bohleber P. |
author_sort |
Luongo M. T. |
title |
Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
title_short |
Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
title_full |
Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
title_fullStr |
Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
title_full_unstemmed |
Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
title_sort |
possible icelandic tephra found in european colle gnifetti glacier |
publishDate |
2017 |
url |
https://hdl.handle.net/10278/5014702 https://doi.org/10.1002/2017GC007022 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000418403800009 volume:18 issue:11 firstpage:3904 lastpage:3909 numberofpages:6 journal:GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS https://hdl.handle.net/10278/5014702 doi:10.1002/2017GC007022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85038394167 |
op_doi |
https://doi.org/10.1002/2017GC007022 |
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Geochemistry, Geophysics, Geosystems |
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