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...
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ftunivbern:oai:boris.unibe.ch:112655 2023-08-20T04:07:11+02:00 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. D. 2017 application/pdf https://boris.unibe.ch/112655/1/Luongo_et_al-2017-Geochemistry,_Geophysics,_Geosystems.pdf https://boris.unibe.ch/112655/ eng eng American Geophysical Union AGU https://boris.unibe.ch/112655/ info:eu-repo/semantics/openAccess 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. D. (2017). Possible Icelandic Tephra Found in European Colle Gnifetti Glacier. Geochemistry, geophysics, geosystems, 18(11), pp. 3904-3909. American Geophysical Union AGU 10.1002/2017GC007022 <http://dx.doi.org/10.1002/2017GC007022> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2017 ftunivbern https://doi.org/10.1002/2017GC007022 2023-07-31T21:42:01Z 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 BORIS (Bern Open Repository and Information System, University of Bern) Geochemistry, Geophysics, Geosystems 18 11 3904 3909 |
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Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics 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. D. Possible Icelandic Tephra Found in European Colle Gnifetti Glacier |
topic_facet |
530 Physics |
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. |
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. D. |
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. D. |
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 |
publisher |
American Geophysical Union AGU |
publishDate |
2017 |
url |
https://boris.unibe.ch/112655/1/Luongo_et_al-2017-Geochemistry,_Geophysics,_Geosystems.pdf https://boris.unibe.ch/112655/ |
genre |
ice core |
genre_facet |
ice core |
op_source |
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. D. (2017). Possible Icelandic Tephra Found in European Colle Gnifetti Glacier. Geochemistry, geophysics, geosystems, 18(11), pp. 3904-3909. American Geophysical Union AGU 10.1002/2017GC007022 <http://dx.doi.org/10.1002/2017GC007022> |
op_relation |
https://boris.unibe.ch/112655/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2017GC007022 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
18 |
container_issue |
11 |
container_start_page |
3904 |
op_container_end_page |
3909 |
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1774718660933320704 |