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通过成矿地质背景,矿体地质特征,矿石特征,矿床稀土元素,流体包裹体地球化学,氢氧同位素地球化学特征等研究,认为八面山萤石矿床,按矿体赋存于岩体与灰岩接触带、灰岩层间及构造破碎带;岩石有细粒及粗粒-巨晶两类;矿床成矿温度主要集中在120°～240°之间;氢氧同位素特征反应成矿流体具有多来源多成因的特征;成矿物质Ca主要来源于寒武系中的灰岩与泥质灰岩,F主要来源于寒武系泥质灰岩,部分可能为岩浆热液从地表深部携带而来,萤石矿床成矿流体水具有多源性;成矿流体具有大气降水,变质水和岩浆水共同混合作用的结果,在岩浆侵入热源的作用下,三种水混合后被加热,形成了成矿溶液的重要载体。研究认为八面山萤石矿床是受地层-岩体-断裂共同控制“三位一体”的中低温热液成因矿床。
Based on the research on the geological background of mineralization, the geological characteristics of ore bodies, ore features, rare earth elements in ore deposits, geochemistry of fluid inclusions and geochemical characteristics of hydrogen and oxygen isotopes, it is considered that the Fupingshan fluorite deposit is hosted by ore bodies Limestone contact zone, limestone interlayer and structural crushing zone. The rocks are composed of fine-grained and coarse-grained macrostites. The metallogenic temperature of the ore deposits mainly lies in the range of 120 ° -240 °. The hydrogen and oxygen isotopic characteristic mineralized fluids have Multi-origin and multi-origin characteristics. The metallogenic Ca is mainly derived from the limestone and argillaceous limestone in the Cambrian. F mainly comes from the Cambrian mudstone, which may be partly due to the magmatic hydrothermal fluid carrying from the deep surface of the earth’s surface The fluid of ore-forming fluid in fluorite deposit is multi-sourced. Ore-forming fluid has the result of co-mixing of atmospheric precipitation, metamorphic water and magmatic water. Under the action of magma invaded heat source, the three kinds of water are heated and mixed to form a An important carrier of ore-forming solution. The study suggests that the Bamianshan fluorite deposit is a medium- and low-temperature hydrothermal genetic deposit jointly controlled by the formation-rock mass-fault.