NUMERICAL SIMULATION OF RADON MOVEMENT IN QUATERNARY OVERBURDEN OVER THE FAULT
WANG Xiao-li1, LIU Jing-hua1, WANG Zhu-wen1, Zhang Yu-long2
1. College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China;
2. Nuclear Geological Bureau of Gansu Province, Lanzhou 730000, China
On the basis of previous researches, an equation for radon movement in Quaternary overburden over the fault has been established on the assumption that the overburden is stable. The boundary conditions are given in this paper. The numerical simulation of radon distribution in the overburden and the influencing factors are discussed. It is shown that there exists an obvious anomaly in the overburden over a fault, and its distribution is affected by the thickness of the overburden, the width of the fault, the diffusion coefficient of radon, and the convection velocity of radon.
王晓丽, 刘菁华, 王祝文, 张玉龙. 断层上方第四系覆盖层中氡气运移规律的数值模拟[J]. 物探与化探, 2007, 31(2): 149-152.
WANG Xiao-li, LIU Jing-hua, WANG Zhu-wen, Zhang Yu-long. NUMERICAL SIMULATION OF RADON MOVEMENT IN QUATERNARY OVERBURDEN OVER THE FAULT. Geophysical and Geochemical Exploration, 2007, 31(2): 149-152.
