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Age, origin and significance of a new middle MIS 3 tephra horizon identified within a long-core sequence from Les Echets, France
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2008 (English)In: Boreas, ISSN 0300-9483, E-ISSN 1502-3885, Vol. 37, no 3, 434-443 p.Article in journal (Refereed) Published
Abstract [en]

A new tephra has been identified within a long core (EC 3) sequence recovered from Les Echets, near Lyon, France. This visible tephra was discovered as part of a high resolution multiproxy re-investigation of the Les Echets sequence. Independent chronological information suggests that the tephra is c. 2 000-45 000 years old, and geochemical analysis indicates that it is of basanitic composition. The latter suggests a possible origin in the Eifel, however, as yet, no other volcanic events or deposits can be correlated to the Les Echets tephra. New sedimentological and chronological data are presented indicating that the tephra falls within an interval that most likely correlates with Dansgaard-Oeschger events 12-9. Thus, this tephra could potentially be an important middle MIS 3 marker horizon in central Europe if it can be traced in other palaeorecords.

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2008. Vol. 37, no 3, 434-443 p.
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Earth and Related Environmental Sciences Subatomic Physics Engineering and Technology
Research subject
Ion Physics
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URN: urn:nbn:se:uu:diva-109990DOI: 10.1111/j.1502-3885.2008.00028.xISI: 000257550400007OAI: oai:DiVA.org:uu-109990DiVA: diva2:274966
Available from: 2009-11-02 Created: 2009-11-02 Last updated: 2016-04-13Bibliographically approved

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Possnert, Göran

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