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Natural Radiocarbon Variations from AD 200 to 800

Published online by Cambridge University Press:  18 July 2016

Michael Bruns ,
K O Münnich  and
Bernd Becker
Michael Bruns
Affiliation:
Research project “Dating of Water and Sediments” Heidelberg Academy of Sciences
K O Münnich
Affiliation:
Institut für Umweltphysik der Universität Heidelberg, FRG
Bernd Becker
Affiliation:
Botanisches Institut der Universität Hohenheim, FRG
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Abstract

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High precision radiocarbon measurements (±2.5‰ STD) were carried out on absolutely dated European oak material. These showed that significant short-term atmospheric 14C variations of up to 2 percent occurred between AD 200 and 800. These changes, reflecting a 150-to 180-year periodicity, seem to correlate with the average sunspot activity around that time. In comparison with results obtained by other authors, a very regular pattern of natural atmospheric 14C variations is exhibited.

Type
Natural 14C Variations
Information
Radiocarbon , Volume 22 , Issue 2 , 1980 , pp. 273 - 277
Copyright
Copyright © The American Journal of Science 

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