构造裂隙充填型萤石矿勘查方法技术应用研究

Research on the Application of Exploration Methods and Technologies for Tectonic Fracture-Filled Fluorite Deposits

摘要: 赣南地区萤石资源丰富，以中低温热液充填型矿床为主，矿体产状、形态、规模均受断裂构造控制，矿物来源于围岩及岩浆热液，成矿流体为大气降水。文章以赣州市宁都县黄石镇石头村萤石矿为例，阐述了在第四系盆地和花岗岩强风化覆盖区利用综合物探方法技术(高密度电阻率法和音频大地电磁测深法)划分矿区地层结构和查明断裂构造分布特征，圈定找矿异常靶区，为下一步矿区萤石矿资源储量核实地质钻孔工程布置提供参考依据。

Abstract: The Gannan region is rich in fluorite resources, mainly dominated by mesothermal to epithermal hydrothermal filling deposits. The occurrence, morphology, and scale of ore bodies are all controlled by fault structures. The minerals are derived from surrounding rocks and magmatic hydrothermal fluids, while the ore-forming fluids are meteoric water. Taking the fluorite mine in Shitou Village, Huangshi Town, Ningdu County, Ganzhou City as an example, this paper expounds the application of comprehensive geophysical prospecting methods (high-density resistivity method and audio magnetotelluric sounding method) in the Quaternary basin and granite strongly weathered coverage area to divide the stratigraphic structure of the mining area, identify the distribution characteristics of fault structures, and delineate ore-prospecting anomaly target areas. It provides a reference basis for the layout of geological drilling projects for the verification of fluorite resource reserves in the mining area in the next step.