江西安远光明萤石矿地质特征及其找矿标志

Geological Characteristics and Prospecting Criteria of Fluorite Ore in Anyuan Guangming Country of Jiangxi Province

安远光明萤石矿位于南岭成矿带与武夷成矿带交界处,成矿地质条件优越。本文在以往工作和研究的基础上,对光明萤石矿区成矿地质特征和控矿地质条件及找矿标志进行了分析,认为光明萤石矿受区内构造-岩浆活动及寒武系地层控制。北北东向区域性断裂为矿区控矿构造,其派生的次级北东东向断裂则为含矿构造。区内燕山期花岗岩富含氟元素,为萤石矿的形成提供了物质和动力来源,寒武系浅变质岩含有较高成矿元素,为萤石矿的矿源层。

Guangming fluorite ore is located in the juncture between nanling metallogenic belt and wuyi metallogenic belt,which has ascendance on ore-forming geological conditions.In this paper,though analyzing the geological characteristics,geological conditions and prospecting criteria of fluorite ore based on previous work and studies,it think that the metallogeny has a close relation with magmatism-faults activity and Cambrian stratigraphy.NNE regional fracture and derivative secondary NEE fracture are the ore-controlling and ore-bearing structure of guangming mining area.The yanshan granite in the area which is rich in fluoride,provides material and dynamic source for the formation of fluorite ores.Cambrain shallow metamorphic is source bed of fluorite,which is rich in ore-forming elements.