| U238 is a rare radioactive metallic element, the abundance of the crust is only 2-3×10-6, it is not only a nuclear bomb materials, and also the raw material of nuclear power.the past over-reliance on fossil energy, resulting in global warming the energy crisis and climate change, clearly aware of the world to actively promote clean, efficient nuclear power development, will help improve our living environment, and adjust the energy structure, in order to continue sustainable human development. China is a large developing country, in the energy structure on the proportion of nuclear power is still relatively small, therefore, China in the 21st century, "actively promote nuclear power development" policy, under the guidance of the development of nuclear power, "2020, 40 million kilowatts, In the construction of 18 million kilowatts, "the planning objectives, China's nuclear power construction has entered a stage of rapid development; the rapid development of China's nuclear power construction, to ensure the supply of uranium is the development of nuclear power in China a priority, therefore, increase the uranium geological exploration for the construction of nuclear power has very important significance.China's uranium deposits are divided into four categories, namely: granite, volcanic, carbon and silicon mudstone type, sandstone. One study of granite-type uranium deposits in the fifties and sixties of last century began, and in foreign countries found that early, early fifties have a great development, mainly in the European Hercynian fold belt in Alaska (Spokane) region and the former Soviet Central Asia and other places. However, the distribution of granite area, the number of deposits of uranium reserves and the extent to see the best of France, the French uranium reserves, accounting for more than 70% of total reserves; through the granite-type uranium deposits at home and abroad, we can see a granite-type uranium deposit big and rich, and easy exploitation of the characteristics, therefore, to find granite-type uranium deposits of uranium to ensure that nuclear power has a key role in demand. This paper is the western Sichuan plateau Que mountain of radioactive characteristics of granite preliminary discussion, information and dating through the surface of cho la formed in the Mesozoic granite, granite, western Sichuan during this period is the most typical rock. We conducted field point along the national highway G317 measured in the study area by different lithology, different particle size, and the radioactive rocks of different depth measurements, and the soil of the study area, hot water springs and radon measurements and the measurement of indoor sampling points of major elements and trace elements; Thus, we study area rocks of different lithology, different particle size, and the radioactive element for comparison between different depth analysis. Through comparative analysis, we can draw the radioactive elements uranium and thorium and potassium content of rocks, particle size, and depth of the relationship between the rocks; We radon concentration measurements, we can see that the radium content in granite Que mountain high ; short, granite throughout the study area showed uranium and thorium potassium anomaly; Comparative analysis of the above, the establishment of the radioactive characteristics of the study area, the purpose of exploration for future guidance on uranium mineralization.In Chapter 5, we mainly Que mountain granite granite with high contribution to make in the radioactive elements and trace elements analyzed in the hope that by comparing the cho la rock and rock mass displacement to provide high tribute Radioactive and trace elements in the evidence; we found by analyzing the two rock Th content showed a strong consistency, while trace element distribution patterns are consistent, right-wing type has emerged, showing Ba, Nb, Sr , P, Ti strong negative anomalies, and Nd, Th positive anomalies, from Ba, Nb, Sr, P, Ti losses we can see, the two material sources of granite rock is granite and mantle melting a small amount of crustal magma. |
