Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-29T19:47:50.427Z Has data issue: false hasContentIssue false
  • English
  • Français

Radiocarbon Activity Variation in Dated Tree Rings Grown in Mackenzie Delta

Published online by Cambridge University Press:  18 July 2016

C Y Fan ,
Chen Tie-Mei ,
Yun Si-Xun  and
Dai Kai-Mei
C Y Fan
Affiliation:
Department of Physics, University of Arizona, Tucson
Chen Tie-Mei
Affiliation:
Radiocarbon Laboratory, Archaeological Section, History Department, Peking University, Beijing, China
Yun Si-Xun
Affiliation:
Radiocarbon Laboratory, Archaeological Section, History Department, Peking University, Beijing, China
Dai Kai-Mei
Affiliation:
Department of Physics, Nanjing University, Nanjing, China
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Forty-five tree rings (1881–1925) were taken from a white spruce grown near Campbell River in Mackenzie Delta, Canada, for the measurement of 14C activity variation. Because of the narrowness of the rings, 2 and sometimes 3 rings were combined to yield a total of 21 specimens. The 14C content in these specimens was measured with a liquid scintillation-PM tube counter system of the History Department of Peking University. The data points exhibit a 10‰ variation, anti-correlated with sunspot numbers. The physical implication is discussed.

Type
I. Natural 14C Variations
Information
Radiocarbon , Volume 25 , Issue 2: 11th International Radiocarbon Conference , 1983 , pp. 205 - 212
Copyright
Copyright © The American Journal of Science 

References

Baxter, MS and Farmer, JG, 1973, Radiocarbon: Short term variations: Earth Planetary Sci Letters, v 20, p 295–299.Google Scholar
Baxter, MS and Walton, A, 1971, Fluctuations of atmospheric carbon-14 concentrations during the past century: Royal Soc [London] Proc, Ser A, v 321, p 105–127.Google Scholar
Broecker, WS, Olson, EA, and Bird, J, 1959, Radiocarbon measurements on samples of known age: Nature, v 183, p 1582–1584.Google Scholar
Burchuladze, AA, Pagava, SV, Povinec, P, Togonidze, GI, and Usačev, S, 1980, Radiocarbon variations with the 11-year solar cycle during the last century: Nature, v 287, p 320–322.Google Scholar
Cowan, C, Atluri, CR, and Libby, WF, 1965, Possible antimatter content of the Tunguska Meteor of 1908: Nature, v 206, p 861–865.Google Scholar
Damon, PE, Long, A, and Wallick, EI, 1973a, On the magnitude of the 11-year radiocarbon cycle: Earth Planetary Sci Letters, v 20, p 300–306.Google Scholar
Damon, PE, 1973b, Comments o. Radiocarbon: Short term variations, by Baxter, MS and Farmer, JG: Earth Planetary Sci Letters, v 20, p 311–314.CrossRefGoogle Scholar
de Vries, HL, 1958, Variation in concentration of radiocarbon with time and location on earth: Proc Koninkl Ned Akad Wet, B61, no 2, p 1–9.Google Scholar
Forbush, SE, 1954, World-wide cosmic-ray variations, 1937–1952: Jour Geophys Research, v 59, p 525–542.Google Scholar
Lerman, JC, Mook, WG, and Vogel, JC, 1967, Effect of the Tunguska Meteor and sunspots on radiocarbon in tree rings: Naure, v 216, p 990–991.Google Scholar
Lerman, JC, 1970, C14 in tree rings from different localities, in Olsson, IU, ed, Radiocarbon variations and absolute chronology: New York, John Wiley & Sons, p 275–301.Google Scholar
Lingenfelter, RE and Ramaty, R, 1970, Astrophysical and geophysical variations in C14 production, in Olsson, IU, ed, Radiocarbon variations and absolute chronology: New York, John Wiley & Sons, p 513–537.Google Scholar
Nydal, Reidar, 1968, Further investigation on the transfer of radiocarbon in nature: Jour Geophys Research, v 73, p 3617–3635.Google Scholar
Stuiver, M, 1961, Variation in radiocarbon concentration and sunspot activity: Jour Geophys Research, v 66, p 273–276.CrossRefGoogle Scholar
Stuiver, M and Polach, HA, 1977, Discussion: Reporting of 14C data: Radiocarbon, v 19, p 355–363.Google Scholar
Stuiver, M and Quay, PD, 1980, Changes in atmospheric carbon-14 attributed to a variable sun: Science, v 207, p 11–19.Google Scholar
Stuiver, M, 1981, Atmospheric 14C changes resulting from fossil fuel CO2 release and cosmic ray flux variability: Earth Planetary Sci Letters, v 53, p 349–362.Google Scholar
Suess, HE, 1965, Secular variations of the cosmic-ray produced carbon-14 in the atmosphere and their interpretations: Jour Geophys Research, v 70, p 5937–5952.Google Scholar
Tans, PP, DeJong, AF, and Mook, WG, 1979, Natural atmospheric 14C variation and the Suess effect: Nature, v 280, p 826–828.Google Scholar