A Younger Dryas ash bed in western Norway, and its possible correlations with tephra in cores from the Norwegian Sea and the North Atlantic
Mangerud, J.; Lie, S.E.; Furnes, H.; Kristiansen, I.L.; Lømo, L. (1984). A Younger Dryas ash bed in western Norway, and its possible correlations with tephra in cores from the Norwegian Sea and the North Atlantic. Quatern. Res. 21(1): 85-104
In: Quaternary Research. Academic Press: New York. ISSN 0033-5894; e-ISSN 1096-0287, meer
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| Trefwoorden |
Chemistry > Geochemistry
Correlation > Geological correlation > Stratigraphic correlation
Earth sciences > Geology > Stratigraphy
Norway
Rocks > Igneous rocks > Volcanic rocks > Ashes > Volcanic ash
Sedimentary structures
Norwegian Exclusive Economic Zone [Marine Regions]
Marien/Kust |
| Auteurs | | Top |
- Mangerud, J.
- Lie, S.E.
- Furnes, H.
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- Kristiansen, I.L.
- Lømo, L.
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| Abstract |
A bed of volcanic ash up to 23 cm thick is found in lacustrine and marine sediments in western Norway. It is formally named the Vedde Ash Bed, and its age is approximately 10,600 yr B.P. i.e., mid-Younger Dryas. The bed consists 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 Atlantic. |
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