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Were last glacial climate events simultaneous between Greenland and France?
Stockholm University, Faculty of Science, Department of Geological Sciences.
Stockholm University, Faculty of Science, Department of Geological Sciences.
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2010 (English)In: Journal of Quaternary Science, ISSN 0267-8179, E-ISSN 1099-1417, Vol. 25, no 3, 387-394 p.Article in journal (Refereed) Published
Abstract [en]

Several large abrupt climate fluctuations during the last glacial have been recorded in Greenland ice cores and archives from other regions. Often these Dansgaard–Oeschger events are assumed to have been synchronous over wide areas, and then used as tie-points to link chronologies between the proxy archives. However, it has not yet been tested independently whether or not these events were indeed synchronous over large areas. Here, we compare Dansgaard–Oeschger-type events in a well-dated record from southeastern France with those in Greenland ice cores. Instead of assuming simultaneous climate events between both archives, we keep their age models independent. Even these well-dated archives possess large chronological uncertainties that prevent us from inferring synchronous climate events at decadal to multi-centennial time scales. If possible, comparisons between proxy archives should be based on independent, non-tuned time-scales.

Place, publisher, year, edition, pages
2010. Vol. 25, no 3, 387-394 p.
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-47275DOI: 10.1002/jqs.1330OAI: diva2:373499
Available from: 2010-11-30 Created: 2010-11-30 Last updated: 2011-02-02Bibliographically approved

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Wohlfarth, Barbara
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