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Medium-Term Atmospheric 14C Variations

Published online by Cambridge University Press:  18 July 2016

A F M De Jong and
W G Mook
A F M De Jong
Affiliation:
Isotope Physics Laboratory, University of Groningen, The Netherlands
W G Mook
Affiliation:
Isotope Physics Laboratory, University of Groningen, The Netherlands
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Abstract

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High-precision 14C measurements are presented, carried out on single tree rings from a section of the floating South German Neolithic tree-ring chronology. They confirm the existence of pronounced medium-term variations in the order of 2 percent during the 33rd to 38th centuries BC.

These variations turn out to be very regular while the precision of 1.5‰ allows a comparison with a geochemical model calculation. Good agreement is acquired for an input function with a periodicity of about 150 years and an amplitude of approximately 30 percent in the 14C production rate.

Information

Type
Natural 14C Variations
Information
Radiocarbon , Volume 22 , Issue 2 , 1980, pp. 267 - 272
Copyright
Copyright © The American Journal of Science 

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