Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core
Abstract A microparticle concentration peak in a GISP2 ice core contains volcanic glass shards of rhyolitic composition that correspond in age to the 1479-1480 A.D. Mt. St. Helens Wn eruption. These glass shards are compositionally similar to the Wn tephra and constitute 83% of the total particle po...
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Cambridge University Press (CUP)
1993
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crcambridgeupr:10.1006/qres.1993.1033 2024-06-09T07:46:20+00:00 Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core Fiacco, R. Joseph Palais, Julie M. Germani, Mark S. Zielinski, Gregory A. Mayewski, Paul A. 1993 http://dx.doi.org/10.1006/qres.1993.1033 http://api.elsevier.com/content/article/PII:S0033589483710331?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589483710331?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400034426 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 39, issue 3, page 267-273 ISSN 0033-5894 1096-0287 journal-article 1993 crcambridgeupr https://doi.org/10.1006/qres.1993.1033 2024-05-15T13:09:38Z Abstract A microparticle concentration peak in a GISP2 ice core contains volcanic glass shards of rhyolitic composition that correspond in age to the 1479-1480 A.D. Mt. St. Helens Wn eruption. These glass shards are compositionally similar to the Wn tephra and constitute 83% of the total particle population. The shards are very coarse-grained (up to 40 μm diameter), suggesting rapid transport from their source to Greenland. A major sulfate peak in the ice occurs approximately 4 months after deposition of the glass shards. This difference in depositional timing suggests primarily tropospheric transport of the ash and stratospheric transport of the sulfate aerosol. Large-scale climatic perturbations following this eruption were evidently negligible. Glaciochemical seasonal indicators suggest a late-fall to early-winter 1479 A.D. eruption. Article in Journal/Newspaper Greenland Greenland ice core ice core Cambridge University Press Greenland Quaternary Research 39 3 267 273 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Abstract A microparticle concentration peak in a GISP2 ice core contains volcanic glass shards of rhyolitic composition that correspond in age to the 1479-1480 A.D. Mt. St. Helens Wn eruption. These glass shards are compositionally similar to the Wn tephra and constitute 83% of the total particle population. The shards are very coarse-grained (up to 40 μm diameter), suggesting rapid transport from their source to Greenland. A major sulfate peak in the ice occurs approximately 4 months after deposition of the glass shards. This difference in depositional timing suggests primarily tropospheric transport of the ash and stratospheric transport of the sulfate aerosol. Large-scale climatic perturbations following this eruption were evidently negligible. Glaciochemical seasonal indicators suggest a late-fall to early-winter 1479 A.D. eruption. |
format |
Article in Journal/Newspaper |
author |
Fiacco, R. Joseph Palais, Julie M. Germani, Mark S. Zielinski, Gregory A. Mayewski, Paul A. |
spellingShingle |
Fiacco, R. Joseph Palais, Julie M. Germani, Mark S. Zielinski, Gregory A. Mayewski, Paul A. Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
author_facet |
Fiacco, R. Joseph Palais, Julie M. Germani, Mark S. Zielinski, Gregory A. Mayewski, Paul A. |
author_sort |
Fiacco, R. Joseph |
title |
Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
title_short |
Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
title_full |
Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
title_fullStr |
Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
title_full_unstemmed |
Characteristics and Possible Source of a 1479 A.D. Volcanic Ash Layer in a Greenland Ice Core |
title_sort |
characteristics and possible source of a 1479 a.d. volcanic ash layer in a greenland ice core |
publisher |
Cambridge University Press (CUP) |
publishDate |
1993 |
url |
http://dx.doi.org/10.1006/qres.1993.1033 http://api.elsevier.com/content/article/PII:S0033589483710331?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589483710331?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400034426 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core ice core |
genre_facet |
Greenland Greenland ice core ice core |
op_source |
Quaternary Research volume 39, issue 3, page 267-273 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.1993.1033 |
container_title |
Quaternary Research |
container_volume |
39 |
container_issue |
3 |
container_start_page |
267 |
op_container_end_page |
273 |
_version_ |
1801376136632991744 |