The application effect of EH-4 under different geological backgrounds
Ying-Bin LI1,2, Yi LI1,2, Zhan-Bin ZHANG1,2, Wei ZHANG1,2
1. Airborne Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002, China 2. Key Laboratory of Uranium Resources Geophysical Exploration Technology, China Nuclear Industry Group Company, Shijiazhuang 050002, China
EH-4 has been applied to many fields, such as mineral exploration and engineering exploration. Nevertheless, because of the limitation of the acquisition frequency as well as geological and geophysical conditions, the application effects of EH-4 in different geological backgrounds are different. In order to prove the argument that the geological geophysical work in EH-4 is reasonable, the authors analyzed the EH-4 effects in exploration of Lianshangguan hard rock type uranium, sandstone type uranium deposit in Erlian Basin and mined out region of Yili basin in Xinjiang. The results show that, in the hard rock area, the depth of EH-4 exploration generally can reach 1000 m or so, and the detection of faults, the contact zone of rock bodies and its strike and spatial distribution can yield fairly good application effect; in sedimentary basins, the exploration effect of EH-4 is affected by the overall depth of resistivity and surface resistivity, the exploration depth may sometimes only reach two hundred or three hundred meters, but can sometimes reach five hundred or six hundred meters. Although the depth of exploration is not big, but the shallow geoelectric properties reflect good effect.
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