摘要
The total activity variation with depth from a 41.6 m Muztagata ice core drilled at 7010 m, recorded not only the 1963 radioactive layer due to the thermonuclear test, but also clearly the radioactive peak released by the Chernobyl accident in 1986. This finding indicates that the Chernobyl nuclear accident was clearly recorded in alpine glaciers in the Pamirs of west China, and the layer can be potentially used for ice core dating in other high alpine glaciers in the surrounding regions.
The total activity variation with depth from a 41.6 m Muztagata ice core drilled at 7010 m, recorded not only the 1963 radioactive layer due to the thermonuclear test, but also clearly the radioactive peak released by the Chernobyl accident in 1986. This finding indicates that the Chernobyl nuclear accident was clearly recorded in alpine glaciers in the Pamirs of west China, and the layer can be potentially used for ice core dating in other high alpine glaciers in the surrounding regions.
基金
Supported by the National Basic Research Program of China (Grant No. 2005CB422002)
the Innovation Program of Chinese Academy of Sciences (Grant No. KZCX3-SW-339)
the National Natural Science Foundation of China (Grant Nos. 40121101 and 40571039)
the Ministry of Science and Technology of China (Grant No. 2001CCB00300)
关键词
切尔诺贝利核事故
新疆
慕士塔格山
冰芯记录
放射性
Muztagata ice core, reference layer, total activity, Chernobyl nuclear accident
