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, 20 (3), pp. 209-219. 10.1002/jqs.908
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J_Quaternary_Science_-_2005_-_Mortensen_-_Volcanic_ash_layers_from_the_Last_Glacial_Termination_in_the_NGRIP_ice_core.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (662kB) | Request a copy |
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) |
|---|---|
PHBern Contributor: |
Bigler, M. |
ISSN: |
0267-8179 |
Language: |
English |
Submitter: |
Matthias Bigler |
Date Deposited: |
29 Jan 2024 13:18 |
Last Modified: |
02 Feb 2024 10:36 |
Publisher DOI: |
10.1002/jqs.908 |
PHBern DOI: |
10.57694/7234 |
URI: |
https://phrepo.phbern.ch/id/eprint/7234 |
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