Holocene tephras highlight complexity of volcanic signals in Greenland ice cores
Acidity peaks in Greenland ice cores have been used as critical reference horizons for synchronizing ice core records, aiding the construction of a single Greenland Ice Core Chronology (GICC05) for the Holocene. Guided by GICC05, we examined sub-sections of three Greenland cores in the search for te...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://pure.qub.ac.uk/en/publications/0debb29b-e213-4412-8481-f574aed49759 https://doi.org/10.1029/2012JD017698 |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/0debb29b-e213-4412-8481-f574aed49759 2024-06-23T07:53:12+00:00 Holocene tephras highlight complexity of volcanic signals in Greenland ice cores Coulter, Sarah E. Pilcher, Jonathan R. Plunkett, Gill Baillie, Mike Hall, Valerie A. Steffensen, J.P. Vinther, Bo M. Clausen, Henrik Brink Johnsen, Sigfus J. 2012-11 https://pure.qub.ac.uk/en/publications/0debb29b-e213-4412-8481-f574aed49759 https://doi.org/10.1029/2012JD017698 eng eng https://pure.qub.ac.uk/en/publications/0debb29b-e213-4412-8481-f574aed49759 info:eu-repo/semantics/closedAccess Coulter , S E , Pilcher , J R , Plunkett , G , Baillie , M , Hall , V A , Steffensen , J P , Vinther , B M , Clausen , H B & Johnsen , S J 2012 , ' Holocene tephras highlight complexity of volcanic signals in Greenland ice cores ' , Journal of Geophysical Research: Atmospheres , vol. 117 , no. D21, 16 , D21303 . https://doi.org/10.1029/2012JD017698 /dk/atira/pure/subjectarea/asjc/1900/1902 name=Atmospheric Science /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/subjectarea/asjc/1900/1912 name=Space and Planetary Science article 2012 ftqueensubelpubl https://doi.org/10.1029/2012JD017698 2024-06-04T14:19:03Z Acidity peaks in Greenland ice cores have been used as critical reference horizons for synchronizing ice core records, aiding the construction of a single Greenland Ice Core Chronology (GICC05) for the Holocene. Guided by GICC05, we examined sub-sections of three Greenland cores in the search for tephra from specific eruptions that might facilitate the linkage of ice core records, the dating of prehistoric tephras and the understanding of the eruptions. Here we report the identification of 14 horizons with tephra particles, including 11 that have not previously been reported from the North Atlantic region and that have the potential to be valuable isochrons. The positions of tephras whose major element data are consistent with ash from the Katmai AD 1912 and Öraefajökull AD 1362 eruptions confirm the annually resolved ice core chronology for the last 700 years. We provide a more refined date for the so-called “AD860B” tephra, a widespread isochron found across NW Europe, and present new evidence relating to the 17th century BC Thera/Aniakchak debate that shows N. American eruptions likely contributed to the acid signals at this time. Our results emphasize the variable spatial and temporal distributions of volcanic products in Greenland ice that call for a more cautious approach in the attribution of acid signals to specific eruptive events. Article in Journal/Newspaper Greenland Greenland ice core Greenland ice cores ice core North Atlantic Queen's University Belfast Research Portal Greenland Journal of Geophysical Research: Atmospheres 117 D21 n/a n/a |
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Open Polar |
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Queen's University Belfast Research Portal |
op_collection_id |
ftqueensubelpubl |
language |
English |
topic |
/dk/atira/pure/subjectarea/asjc/1900/1902 name=Atmospheric Science /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/subjectarea/asjc/1900/1912 name=Space and Planetary Science |
spellingShingle |
/dk/atira/pure/subjectarea/asjc/1900/1902 name=Atmospheric Science /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/subjectarea/asjc/1900/1912 name=Space and Planetary Science Coulter, Sarah E. Pilcher, Jonathan R. Plunkett, Gill Baillie, Mike Hall, Valerie A. Steffensen, J.P. Vinther, Bo M. Clausen, Henrik Brink Johnsen, Sigfus J. Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
topic_facet |
/dk/atira/pure/subjectarea/asjc/1900/1902 name=Atmospheric Science /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/subjectarea/asjc/1900/1912 name=Space and Planetary Science |
description |
Acidity peaks in Greenland ice cores have been used as critical reference horizons for synchronizing ice core records, aiding the construction of a single Greenland Ice Core Chronology (GICC05) for the Holocene. Guided by GICC05, we examined sub-sections of three Greenland cores in the search for tephra from specific eruptions that might facilitate the linkage of ice core records, the dating of prehistoric tephras and the understanding of the eruptions. Here we report the identification of 14 horizons with tephra particles, including 11 that have not previously been reported from the North Atlantic region and that have the potential to be valuable isochrons. The positions of tephras whose major element data are consistent with ash from the Katmai AD 1912 and Öraefajökull AD 1362 eruptions confirm the annually resolved ice core chronology for the last 700 years. We provide a more refined date for the so-called “AD860B” tephra, a widespread isochron found across NW Europe, and present new evidence relating to the 17th century BC Thera/Aniakchak debate that shows N. American eruptions likely contributed to the acid signals at this time. Our results emphasize the variable spatial and temporal distributions of volcanic products in Greenland ice that call for a more cautious approach in the attribution of acid signals to specific eruptive events. |
format |
Article in Journal/Newspaper |
author |
Coulter, Sarah E. Pilcher, Jonathan R. Plunkett, Gill Baillie, Mike Hall, Valerie A. Steffensen, J.P. Vinther, Bo M. Clausen, Henrik Brink Johnsen, Sigfus J. |
author_facet |
Coulter, Sarah E. Pilcher, Jonathan R. Plunkett, Gill Baillie, Mike Hall, Valerie A. Steffensen, J.P. Vinther, Bo M. Clausen, Henrik Brink Johnsen, Sigfus J. |
author_sort |
Coulter, Sarah E. |
title |
Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
title_short |
Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
title_full |
Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
title_fullStr |
Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
title_full_unstemmed |
Holocene tephras highlight complexity of volcanic signals in Greenland ice cores |
title_sort |
holocene tephras highlight complexity of volcanic signals in greenland ice cores |
publishDate |
2012 |
url |
https://pure.qub.ac.uk/en/publications/0debb29b-e213-4412-8481-f574aed49759 https://doi.org/10.1029/2012JD017698 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core Greenland ice cores ice core North Atlantic |
genre_facet |
Greenland Greenland ice core Greenland ice cores ice core North Atlantic |
op_source |
Coulter , S E , Pilcher , J R , Plunkett , G , Baillie , M , Hall , V A , Steffensen , J P , Vinther , B M , Clausen , H B & Johnsen , S J 2012 , ' Holocene tephras highlight complexity of volcanic signals in Greenland ice cores ' , Journal of Geophysical Research: Atmospheres , vol. 117 , no. D21, 16 , D21303 . https://doi.org/10.1029/2012JD017698 |
op_relation |
https://pure.qub.ac.uk/en/publications/0debb29b-e213-4412-8481-f574aed49759 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1029/2012JD017698 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
117 |
container_issue |
D21 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1802644757540765696 |