The radioactive characteristics of a bauxite deposit in northwestern Henan province
Wang Mingming1,2, Yang Yong-qian1,2, Ma kai3, Zhang Lin1,2, Liang Tao1,2
1. General Institute of Non-ferrous Metals Geologic Exploration of Henan Province, Zhengzhou 450052, China;
2. Key Laboratory of Deep Ore-prospecting technology Research for Non-ferrous Metals of Henan Province, Zhengzhou 450052, China;
3. North China University of Water Resources and Electric Power, school of Civil and Traffic Engineering, Zhengzhou 450045, China
For evaluating radioactivity of the deposit in the study area and studying the feasibility of applying the radioactive method, the authors measured the γ radiation dose rate of rocks and ores. Statistics show that the γ radiation dose rates of the bauxite vary in the range of (15.53~48.01)×10-9 (C/kg)/h, with the average value being 24.37×10-9 (C/kg)/h, whereas the γ radiation dose rates of other rocks and ores vary between 4×10-9 (C/kg)/h and 8×10-9 (C/kg)/h, suggesting that the bauxite has the strongest radiation in the deposit, which, however, is still much lower than the rated value of evaluation of human hygiene. It is considered that radioactive characteristics of China’s sedimentary bauxite deposits in ancient weathering crusts resemble the characteristics of this deposit, and that the significant difference between bauxite and other rocks provides the physical condition for applying the radioactive method to exploring bauxite deposits.
王明明, 杨永千, 马凯, 张林, 梁涛. 豫西北某铝土矿床的放射性特征[J]. 物探与化探, 2014, (3): 430-433.
Wang Mingming, Yang Yong-qian, Ma kai, Zhang Lin, Liang Tao. The radioactive characteristics of a bauxite deposit in northwestern Henan province. Geophysical and Geochemical Exploration, 2014, (3): 430-433.