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Absolute Production of Radiocarbon and the Long-Term Trend of Atmospheric Radiocarbon

Published online by Cambridge University Press:  18 July 2016

Tomasz Goslar
Tomasz Goslar*
Affiliation:
Institute of Physics, Silesian University of Technology, ul. Krzywoustego 2,44-100 Gliwice, Poland. Email: goslar@zeus.polsl.gliwicwe.pl
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Abstract

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This paper presents simulations of the long-term trend of atmospheric radiocarbon, performed with the modified PANDORA model. The author shows that taking into account the outflow-supply carbon fluxes makes the decrease of D14C between 40 and 0 ka BP larger by 40–80‰, not much depending on which data (sedimentary magnetism, archaeomagnetism or 10Be) is used for the scenario of relative variations of 14C production. This, together with the effect of CO2 increase reasonably reconciles model-simulated and observed decline of atmospheric Δ14C.

Type
I. Our ‘Dry’ Environment: Above Sea Level
Information
Radiocarbon , Volume 43 , Issue 2B: Proceedings of the 17th International Radiocarbon Conference (Part 2 of 3), Conference Editors: Israel Carmi, Elisabetta Boaretto , 2001 , pp. 743 - 749
Copyright
Copyright © 2001 by the Arizona Board of Regents on behalf of the University of Arizona 

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