14C and Other Parameters During the Younger Dryas Cold Phase

Oeschger, Hans; Welten, Max; Eicher, Ulrich; Möll, Markus; Riesen, Trudi; Siegenthaler, Ulrich; Wegmüller, Samuel (1980). 14C and Other Parameters During the Younger Dryas Cold Phase. Radiocarbon, 22(2), pp. 299-310. Arizona Board of Regents, University of Arizona 10.1017/S0033822200009590

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Pollen analysis as well as 18O/16O results on lake marl show that the Younger Dryas climatic period, between about 11,000 and 10,300 bp, was the last vigorous cold phase of the Würm Glacial. Detailed 14C analyses from a peat bog near Wachseldorn (Switzerland) point to a 14C anomaly in this period. Further indication of a 14C anomaly is given by the observation that, during the Younger Dryas period, the sedimentation rates in several lakes apparently were higher than in adjacent periods; an explanation might be that the 14C time scale was compressed between 11,000 and 10,000 bp, ie, the atmospheric 14C/C ratio varied. If real, this suggested 14C variation would probably be connected to the climatic events during this transition period from Later Glacial to Postglacial.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Climate and Environmental Physics
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Möll, Markus and Wegmüller, Samuel

Subjects:

500 Science > 530 Physics
500 Science > 580 Plants (Botany)

ISSN:

0033-8222

Publisher:

Arizona Board of Regents, University of Arizona

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

06 Aug 2018 11:40

Last Modified:

24 Oct 2019 16:14

Publisher DOI:

10.1017/S0033822200009590

BORIS DOI:

10.7892/boris.118988

URI:

https://boris.unibe.ch/id/eprint/118988

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