The Distribution of Cosmogenic ^(36)Chlorine in Da Shiwei Tiankeng  

作　　者：LI Shi-zhuo WU Shao-yong LI Chao-li WANG Xiang-gao GONG Jie HE Ming RUAN Xiang-dong JIANG Shan 

机构地区：[1]Academy of Physical Science and Engineering Technology, Guangxi University [2]不详

出　　处：《Annual Report of China Institute of Atomic Energy》2009年第1期247-248,共2页中国原子能科学研究院年报（英文版）

摘　　要：Tiankeng is a typical Quaternary Karst landform.The cosmogenic chlorine-36 in the Da Shiwei Tiankeng located in Guangxi Leye was mainly responded to the actions between the chlorine-35,calcium-40,Tiankeng is a typical Quaternary Karst landform. The cosmogenic chlorine-36 in the Da Shiwei Tiankeng located in Guangxi Leye was mainly responded to the actions between the chlorine-35, calcium-40, kalium-39 in the stone and the secondary cosmic ray, which were the spoliation of calcium-40 and kalium-39, the negative μ capture of calcium-40, the fast μ capture of calcium-40 and the thermal neutron capture of chlorine-35. On the basis of calculation, the concentration of the cosmogenic chlorine-36 in Tiankeng decreased slowly with the increasing deepness, and in different range of deepness,

关 键 词：宇宙成因 天坑 喀斯特地貌 热中子俘获 宇宙射线 第四纪 氯气 氯浓度 

分 类 号：P142[天文地球—天体物理] P931.5[天文地球—天文学]