Radiocarbon activity variation in dated tree rings grown in mackenzie delta

C. Y. Fan; Tiemei Chen; Sixun Yun; Kaimei Dai

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Radiocarbon activity variation in dated tree rings grown in mackenzie delta

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- Radiocarbon activity variation in dated tree rings grown in mackenzie delta
- Nuclear Techniques Vol. 07, Issue 5, (1984)
- 作者机构：
  
  1.美国阿里松纳大学
  2.北京大学
  3.南京大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：07 June 1983，
  
  Published：1984-10
- 稿件说明：
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C. Y. Fan, Tiemei Chen, Sixun Yun, et al. Radiocarbon activity variation in dated tree rings grown in mackenzie delta[J]. Nuclear techniques, 1984, 07(5): 11-13,22,71.
DOI：

C. Y. Fan, Tiemei Chen, Sixun Yun, et al. Radiocarbon activity variation in dated tree rings grown in mackenzie delta[J]. Nuclear techniques, 1984, 07(5): 11-13,22,71. DOI：

摘要

用液体闪烁法测量了一棵生长在北纬68°地区白云杉的45圈树年轮（公元1881～1925年）中

C放射性比度随年轮的变化。实验数据表明，

C比度有10‰的涨落，并与太阳黑子数负关联。本文讨论了该现象的地球物理原因。

Abstract

Forty-five tree rings (1881-1925) were taken from a white spruce grown near Campell River in Mackenzie Delta

Canada

for the measurement of

C activity variation. The

C content in these specimens was measured with a liquid scintillation counter. The data shows there is a 10‰ variation in

C contents. which is correlated with sunspot numbers. The physical implication is discussed.

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references

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