Polonium-210 fallout from the 1980 eruption of Mount St. Helens and the mystery cloud of 1982
Polonium-210 fallout from the 1980 eruption of Mount St. Helens and the mystery cloud of 1982
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1980 年圣海伦斯火山喷发产生的钋 210 尘埃和 1982 年的神秘云
DOI：
10.2343/geochemj.18.55
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
L. A. Burchfield
中科院分区：
文献类型：
--
作者：
P. K. Kuroda;John C. H. Liou;A. D. Banavali;J. D. Akridge;L. A. Burchfield
1980年5月18日圣海伦斯火山喷发注入大气的过量钋 - 210活度大于1980年10月16日中国0.2到1百万吨级核装置试验爆炸所释放的锶 - 90。1982年3月28日埃尔奇琼火山喷发前出现“神秘”云团，与此同时，1982年1月和2月在阿肯色州费耶特维尔采集的雨水样本中钋 - 210/铅 - 210的比值有所增加。
The amount of excess 210Po activity injected into the atmosphere by the 18 May 1980 eruption of Mount St. Helens was greater than that of 90Sr released by the 16 October 1980 Chinese test explosion of a 0.2 to 1 megaton nuclear device. The occurrence of a ‘mystery’ cloud prior to the 28 March 1982 eruption of El Chichon volcano was accompanied by an increase in the 210Po/210Pb ratio in rain samples collected at Fayetteville, Arkansas, during the months of January and February, 1982.