Electrical characteristics and mineral search prediction of Baishawo rare metal deposit in northeast Hunan Province

Granite pegmatitic rare metal deposit is one of the most important rare metal deposit types, and it is also an important carrier of rare metal minerals. Baishawo pegmatitic deposit has been newly discovered in the east of Lianyunshan Mountain. The preliminary assessment of Baishawo mining area has great potential of rare metal resources. However, the scientific basic research on this mining area is insufficient, the mineral exploitation degree is very low, and the research degree around deep hidden granite pegmatitic vein is not high. Controlled source audio magnetotellurian method is used to detect the deep hidden rock (ore) body in the study area. Three parallel survey lines are arranged in the southeast direction of Baishawo rock mass. The conjugate gradient method is used to conduct two-dimensional inversion of the measured data. Combined with the information of drill holes and the information of elemental anomalies, the inversion results were analyzed to identify the distribution and burial depth of the concealed pegmatite veins, define the potential concealed veins in the study area, and study the geophysical characteristics of pegmatite vein mineralization, which provided the basis for the formation mechanism of fracture zone-constrained pegmatite veins.The research results provide a scientific basis for the follow-up exploration of Baishawoo mining area, and provide reliable geo