Magnetic Study And Preliminary Application Of Deep Prospecting In Xiazhuang Uranium Deposit

Uranium ore is an industrial and strategic mineral resource with great potential.With the continuous consumption of shallow uranium ore,it is of great significance to carry out the research on deep prospecting of uranium ore in South China to promote the clean energy utilization of national nuclear power,the protection of ecological environment and the improvement of regional economy.Paleogeomatics is widely used in various fields of geology and geophysics,and by understanding various magnetic records and magnetization processes and mechanisms,it obtains relevant information about the geomagnetic field at the time of rock formation and explains geological formations.However,the composition of uranium ore in southern China is complex,and magnetic anomalies are strongly influenced by magma magma’s materialization,which is difficult to explain and restricts the research and development of magnetic methods in this area.The quality of the sample is essential for magnetic experiments.Samples generally collect paleomagnetic standard samples,but in areas with more fissures or in order to obtain small samples of ancient geomagnetics,the need to use a market drilling rig,the drill is not a non-magnetic material,the resulting secondary magnetic field will affect the sample itself?The literature is rare.The paper concludes that the secondary interference magnetic field is quantitatively evaluated by theoretical simulation:（1）The peak magnetic field generated inside the drill bit is approximately 7,500 n T,an order of magnitude smaller than the geomagnetic field of 25,000 n T to 65,000 n T.The results show that the secondary magnetic field generated by the drill bit on the market is not enough to cause the core to be re-magnetized,which ensures the reliability of the later experimental data and provides reference for drilling magnetism.Based on the ancient geomagnetic properties of tectonic magnetic features and leftover magnetism,the application of magnetic composition technology in traditional magnetic exploration can fully reflect the paleogeomatic parameters of tectonic geological features,and make up for the deficiency of traditional magnetic exploration to a certain extent.Combined with previous research,the paper analyzes the magnetic composition of samples in southern China and obtains the following views:（2）Flinn and Jelinek diagram/=34/24,indicating that the flattened magnetic composition occupies a comparative advantage₅5))（3）AMS and other area projections in the South China Lower Zhuang area of the sample group composition information correction of the first three axis averages are located near the origin,adjacent to each other,after the correction to the northwest offset,but still close to each other,indicating that the correction results are accurate.After correction,the1 axis and2 gather in the northwest,and the tendency of the underground rock veins may be north-west-south-east.The3 axis has a lower inclination,and the source of the glowing green veins may be deeper.Combined with drilling data,the glowing green rock vein in the drilling is extended from south to east to north west,which is consistent with the experimental results,verifies the accuracy of the drilling recovery method,and provides ideas for further collecting more data and indicating the location of the deep convergence of the rock veins.