Application of Comprehensive Geophysical Methods in Uranium Exploration in Wujianfang Area of Xinchengzi Basin
The Xinchengzi basin is a Mesozoic continental volcanic basin that underwent multiple stages of tecton-ic movements and weathering,resulting in the fragmentation of surface rocks and unclear structural features.This poses great difficulties in summarizing uranium mineralization patterns and conducting deep exploration.In order to solve the problem of mineral exploration in areas with good exposure of bedrock but fractures were well devel-oped,methods such as ground gamma spectroscopy,high-precision magnetic measurement,and controllable source audio magnetotelluric measurement(CSAMT)were used,combined with geological characteristics and physical property data of the study area.The vertical and spatial distribution of lithology of 14 faults and 2 profiles,as well as potential areas for uranium enrichment and mineralization,have been inferred and interpreted.Through the verification of ZK1,ZK2,ZK3,ZK4,and ZK5 drilling holes,the existence of the faults were verified and three industrial uranium ore bodies were exposed.This successful exploration case provides a reference for the ra-tional use of geophysical methods to search for uranium deposits,and also indicates that there is a great potential for mineral exploration in the periphery and deep parts of the region.
comprehensive geophysical prospectingbedrock crushing areaconcealed faulturanium explora-tionWujianfang area
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