Study on the Influencing Factors of Soil Hydrogen Measurement for the Exploration of Sandstone-type Uranium Deposit
In the process of radioactive element decay,water radiolysis will produce a large amount of hydrogen.The characteristics of light weight and fast migration of hydrogen gas make it detectable on the surface of the earth.Therefore,it can guide the exploration of uranium deposits.Soil hydrogen measurement experimental research was conducted in the known Tamasu sandstone-type uranium deposit of Bayingogeben Basin,Barun sandstone-type uranium deposit in Erlian Basin and the Tumen exploration area.The influencing factors of soil hydrogen measurement method for uranium deposits were analyzed from the depth of borehole,hole standby time,measurement point spapce,gas dynamic balance,optimal collection time,etc.By comparing and analyzing with known geological data and borehole data,the degree of uranium mineralization,thickness and buried depth were found positively related to the abnormal concentration of surface hydrogen gas,the higher the degree of mineralization,the larger the thickness,and the shallower the buried depth,the higher the soil hydrogen concentration;good soil hydrogen anomalies were examined above the fault structure,and the soil hydrogen concentration anomaly was greatly affected by factors such as fault width,the encountering mineralization level of the fault.A set of effective and feasible soil hydrogen concentration collection scheme and working procedure were summarized to provide new ideas and methods for uranium exploration.
万方数据
维普
