Volcanic ash layers from the Last Glacial Termination in the NGRIP ice core

Mortensen, Anette K.; Bigler, Matthias; Grönvold, Karl; Steffensen, Jørgen P.; Johnsen, Sigfús J. (2005). Volcanic ash layers from the Last Glacial Termination in the NGRIP ice core. Journal of quaternary science JQS, 20(3), pp. 209-219. John Wiley & Sons, Ltd. 10.1002/jqs.908

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The tephrochronological record of the 1400–1640 m depth (∼10 000–16 000 calendar ice core years before present) of the NGRIP ice core has been established by particle screening of selected samples. Ash was identified in 20 samples. Correlation with ice, marine and terrestrial records from volcanic source regions in the northern hemisphere positively identifies the Saksunarvatn Ash and the Vedde Ash (Ash Zone 1). Major element chemistry of the remaining identified ash layers mainly points towards an Icelandic origin. This tephrochronological record provides new important marker horizons for correlating the timing of the climatic changes associated with the Last Glacial Termination within the North Atlantic region, as well as outlining more details concerning the frequency and composition of volcanic eruptions occurring at this deglaciation.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Climate and Environmental Physics

UniBE Contributor:

Bigler, Matthias

Subjects:

500 Science > 530 Physics

ISSN:

0267-8179

Publisher:

John Wiley & Sons, Ltd.

Language:

English

Submitter:

BORIS Import 2

Date Deposited:

30 Sep 2021 11:10

Last Modified:

05 Dec 2022 15:52

Publisher DOI:

10.1002/jqs.908

BORIS DOI:

10.48350/158526

URI:

https://boris.unibe.ch/id/eprint/158526

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