Abstract： Previous studies have found that there are anomalies of mobile ￣ state uranium ， radon and its
daughter radioactivity in the surface soil above the concealed sandstone ￣ type uranium deposits. In this
paper ， the mobile forms of uranium ， specific activity of radon and its daughter in surface soil were
measured in different ￣ grade ore ￣ bearing borehole and non ￣ mineralization borehole areas of Hadatu
sandstone ￣ type uranium deposit in the Erlian Basin ， the significances of the data are tested by SPSS
software. Results showed that the surface soil instantaneous radon concentration in the high ￣ grade borehole
area is significantly higher than that in the non ￣ mineralization borehole area ， and the difference between
two sets of data is obvious （ P＜0.05 ）， which may be directly related to the deep concealed sandstone ￣ type
uranium deposits. On the contrary ， there is no significant difference in the surface soil mobile ￣ state uranium
and 210 Po contents in the ore ￣ bearing and non ￣ mineralization borehole areas ，which means that it difficult to
use the two parameters for predicting the deep concealed uranium bodies.
2019, Vol. 35 
