Geological characteristics and prospecting prospects analysis of lead zinc tin deposits in Yanggu mining area,Linwu County,Hunan Province
Yanggu mining area is located at the north edge of the middle section of the east-west structural belt of the Nanling Mountain,the south end of the south-north structural belt of Leiyang Linwu,and the north side of the Xianghualing ore field in Hunan.Around the Xianghualing ore field,there are many different genetic types of tin lead zinc and other polymetallic ores,granite type tantalum niobium,fine-grained vein type tantalum niobium,porphyry vein type tin lead zinc silver deposits in the rock mass,striped beryllium,skarn type tin polymetallic ore,metasomatic scheelite,and hydrothermal fissure filling metasomatic deposits(tin lead zinc ore,wolframite)in the surrounding rock mass,and the main rich ore horizons of the mining area are Sandstone and conglomerate of Tiaomajian Formation of Devonian System,but Cambrian stratum and rock mass are not exposed to the surface,and the control and research degree of previous work is low.In combination with the characteristics that the metallogenic part is mainly located in the interlayer fissure,the intersection of main fault and secondary fault.Based on the preparation of this development and utilization plan and previous reserve verification data,combined with the regional geological background and geological characteristics of the deposit,as well as previous research,it is determined that the deposit type in the mining area is Sn controlled by faults and filled with high and medium temperature hydrothermal fluids W.Pb,Zn,Ag deposit types.Based on the characteristics of fault controlled mineralization,delineate the next stage of prospecting target areas,and explore the possibility of mineralization for other types of polymetallic deposits.
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