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14C and Other Parameters During the Younger Dryas Cold Phase

Published online by Cambridge University Press:  18 July 2016

Hans Oeschger ,
Max Welten ,
Ulrich Eicher ,
Markus Möll ,
Trudi Riesen ,
Ulrich Siegenthaler  and
Samuel Wegmüller
Hans Oeschger
Affiliation:
Physics Institute, University of Bern, Switzerland
Max Welten
Affiliation:
Institute for Systematic and Geo-Botany, University of Bern, Switzerland
Ulrich Eicher
Affiliation:
Physics Institute, University of Bern, Switzerland Institute for Systematic and Geo-Botany, University of Bern, Switzerland
Markus Möll
Affiliation:
Physics Institute, University of Bern, Switzerland
Trudi Riesen
Affiliation:
Physics Institute, University of Bern, Switzerland
Ulrich Siegenthaler
Affiliation:
Physics Institute, University of Bern, Switzerland
Samuel Wegmüller
Affiliation:
Institute for Systematic and Geo-Botany, University of Bern, Switzerland
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Abstract

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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.

Type
Natural 14C Variations
Information
Radiocarbon , Volume 22 , Issue 2 , 1980 , pp. 299 - 310
Copyright
Copyright © The American Journal of Science 

References

Barbetti, Mike, 1980, Geomagnetic strength over the last 50,000 years and changes in the radiocarbon time scale, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 192–199.Google Scholar
Berner, Werner, Oeschger, Hans, and Stauffer, Bernhard, 1980, Information on the CO2 cycle from ice core studies, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 227–235.Google Scholar
Damon, P E, 1968, Radiocarbon and climate: Meteorol Mono 8, p 151–154.Google Scholar
Dansgaard, W, Johnsen, S J, Møller, J, and Langway, C C, 1969, One thousand centuries of climatic record from Camp Century on the Greenland ice sheet: Science, v 166, p 377–381.Google Scholar
Eicher, Ulrich and Siegenthaler, Ulrich, 1976, Palynological and oxygen isotope investigations on Late Glacial sediment cores from Swiss lakes: Boreas, v 5, p 109–117.CrossRefGoogle Scholar
Eicher, Ulrich, Siegenthaler, Ulrich, and Wegmüller, Samuel, in press, Pollen and oxygen isotope analyses on Late- and Post-Glacial sediments of the Tourbière de Chirens (Dauphiné, France): Quaternary Research, in press.Google Scholar
Früh, J and Schröter, C, 1904, Die Moore der Schweiz mit Berücksichtigung der gesamten Moorfrage, Bern.Google Scholar
Heeb, K and Welten, M, 1972, Moore und Vegetationsgeschichte der Schwarzenegg und des Molassevorlandes zwischen dem Aaretal unterhalb Thun urd dem obern Emmental: Naturforsch Gesell Bern Mitt, Neue Folge 29, p 1–54.Google Scholar
Keller, P, 1928, Pollenanalytische Untersuchungen an Schweizer Mooren und ihre florengeschichtliche Deutung: Veröffentl Geobot Inst Rübel, v 5, Bern.Google Scholar
Loosli, H H, Heimann, Martin, and Oeschger, Hans, 1980, Low-level gas proportional counting in an underground laboratory, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 461–469.CrossRefGoogle Scholar
Mangerud, J, Anderson, S T, Berglund, B E, and Donner, J J, 1974, Quaternary stratigraphy of Norden, a proposal for terminology and classification: Boreas, v 3, p 109–128.Google Scholar
Moore, P D, 1979, Reconstructing the past: Nature, v 279, p 759–760.Google Scholar
Olsson, I, ed, 1970, Radiocarbon variations and absolute chronology, Nobel symposium, 12th, Proc: Stockholm, Almqvist & Wiksell.Google Scholar
Siegenthaler, Ulrich, Heimann, Martin, and Oeschger, Hans, 1980, 14C variations caused by changes in the global carbon cycle, in Stuiver, Minze and Kra, Renee, eds, Internatl radiocarbon conf, 10th, Proc: Radiocarbon, v 22, no. 2, p 177–191.Google Scholar
Stuiver, Minze, 1970, Long-term 14C variation, in Olsson, I U, ed, Radiocarbon variations and absolute chronology, Nobel symposium 12th, Proc: Stockholm, Almqvist & Wiksell, p 197–213.Google Scholar
Suess, H E, 1970, The three causes of the secular 14C fluctuations, their amplitudes and time constants, in Olsson, I U, ed, Radiocarbon variations and absolute chronology, Nobel symposium, 12th, Proc: Stockholm, Almqvist & Wiksell, p 595–605.Google Scholar
de Vries, HI, 1968, Variations in concentration of radiocarbon with time and location on earth: Koninkl Nederl Akad van Wetenschappen, Proc ser B 61, p 94–102.Google Scholar
Welten, M, 1972, Das Spätglazial im nördlichen Voralpengebiet der Schweiz: Berichte Deutsch Botan Gesell, v 85, p 69–74.Google Scholar