A Younger Dryas Ash Bed in Western Norway, and Its Possible Correlations with Tephra in Cores from the Norwegian Sea and the North Atlantic

A bed of volcanic ash up to 23 cm thick is found in lacustrine and marine sediments in western Norway. It is formally mamed the Vedde Ash Bed, and its age is approximately 10,600 yr B.P., i.e., mid-Younger Dryas. The bed consits of pure glass having a bimodal basaltic and rhyolitic composition. The...

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Bibliographic Details
Published in:Quaternary Research
Main Authors: Mangerud, Jan, Lie, Sven Erik, Furnes, Harald, Kristiansen, Inger Lise, Lømo, Leif
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1984
Subjects:
Norwegian Sea
Norway
North Atlantic
Online Access:http://dx.doi.org/10.1016/0033-5894(84)90092-9
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Summary:A bed of volcanic ash up to 23 cm thick is found in lacustrine and marine sediments in western Norway. It is formally mamed the Vedde Ash Bed, and its age is approximately 10,600 yr B.P., i.e., mid-Younger Dryas. The bed consits of pure glass having a bimodal basaltic and rhyolitic composition. The geochemistry of the glass shards suggests an Icelandic source. By means of stratigraphic position and geochemistry, the ash is correlated with ash zones found in cores from the continental shelf, the Norwegian Sea, and the North Atlatic.

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