Neutron activation study of the peat samples from the Tunguska explosion epicenter

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Neutron activation study of the peat samples from the Tunguska explosion epicenter

更新时间：2021-03-12

- Neutron activation study of the peat samples from the Tunguska explosion epicenter
- NUCLEAR TECHNIQUES Issue 6, (1999)
- 作者机构：
  
  1. 中国科学院高能物理研究所,北京
  2. ,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： P618.12
- Published：01 June 1999
- 稿件说明：
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[1]柴之芳,马配学,候泉林,毛雪瑛,欧阳宏.通古斯卡爆炸现场泥炭样品的中子活化研究[J].核技术,1999(06):358-361.

Neutron activation study of the peat samples from the Tunguska explosion epicenter[J]. Nuclear techniques, 1999, (6): 358-361.
[1]柴之芳,马配学,候泉林,毛雪瑛,欧阳宏.通古斯卡爆炸现场泥炭样品的中子活化研究[J].核技术,1999(06):358-361. DOI：

Neutron activation study of the peat samples from the Tunguska explosion epicenter[J]. Nuclear techniques, 1999, (6): 358-361. DOI：

摘要

用中子活化法研究了取自1908年通古斯卡爆炸现场一个钻孔泥炭样品中的铱和其它有关元素的丰度变化，发现在1908年爆炸层及其上覆层位处的铱有明显的异常，最大铱丰度约为背景值的5倍以上。根据铱与镍、钴等元素的相关性，以及氢和碳同位素资料，可认为这一爆炸事件也许是由彗星进入地球轨道而引起的。

Abstract

The abundance variations of iridium and other related elements in the peat samples from a drilling hole of the Tunguska explosion epicenter were studied by neutron activation analysis. We found the striking anomaly of iridium abundance at the 1908 explosion layer and its overlying strata

whose maximum reaches over five times higher than the background value. On the basis of the elemental correlation of Ir with Ni and Co and in combination with the information of hydrogen and carbonisotopic excursions

a hypothesis that a comet entering the earth orbit might causethis modern explosion event was deduced.

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Related Author

毛雪瑛

柴之芳

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Related Institution

Institute of High Energy Physics and Laboratory of Nuclear Analytical Techniques, the Chinese Academy Sciences

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中国科学院高能物理研究所核分析技术开放研究实验室

Institute of High Energy Physics and Laboratory of Nuclear Analytical Techniques, the Chinese Academy of Sciences.

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