摘要
以天门—上湖新发现的小型萤石矿床为研究对象,系统研究矿床地质特征与成矿规律,旨在评价深部找矿潜力并指导区域勘查部署。研究结果表明,矿床位于会昌红层盆地北部南东边缘,隶属于赣南重要的瑞金—会昌萤石成矿带;萤石矿体赋存于安山岩脉及其与岩体接触带附近的NE向断裂构造带中,严格受断裂构造带控制,属中低温热液充填型脉状萤石矿床。区域上,矿床位于石城—寻乌深大断裂控制的瑞金—会昌萤石成矿带,与周边大型矿床具有相似的成矿地质条件。深部钻探资料显示,在+140 m标高以下矿体呈现厚度增大、品位升高的趋势,与邻区花石、瑞源萤石矿深部矿化特征一致,指示深部存在良好的找矿空间。因此,认为矿区内深部有较大的找矿前景,值得进一步开展深部找矿工作。
Taking the newly discovered small fluorite deposit in Tianmen-Shanghu as the research object,the geological characteristics and metallogenic regularity of the deposit are systematically studied in order to evaluate the deep prospecting potential and guide the regional exploration and deployment.The results show that the deposit is located in the southeastern margin of the northern part of the Huichang red bed basin,which belongs to the important Ruijin-Huichang fluorite metallogenic belt in southern Jiangxi Province.The fluorite ore body is located in the andesite vein and the NE-trending fault tectonic belt near the contact zone with the rock mass.It is strictly controlled by the fault tectonic belt and belongs to the medium-low temperature hydrothermal filling vein fluorite deposit.In the area,the deposit is located in the Ruijin-Huichang fluorite metallogenic belt controlled by the Shicheng-Xunwu deep fault,which has similar metallogenic geological conditions with the surrounding large deposits.The deep drilling data show that the ore body below the elevation of+140 m shows a trend of increasing thickness and grade,which is consistent with the deep mineralization characteristics of Huashi and Ruiyuan fluorite deposits in the adjacent area,indicating that there is a good prospecting space in the deep part.Therefore,it is considered that there is a great prospecting prospect in the deep part of the mining area,which is worthy of further deep prospecting work.
作者
马超
马天
MA Chao;MA Tian(The First Geological Brigade of Jiangxi Geological Bureau;Basic Geological Survey Institute of Jiangxi Geological Survey and Exploration Institute)
出处
《现代矿业》
2025年第12期157-164,共8页
Modern Mining
基金
江西省地质勘查基金项目(编号:20180023)。
关键词
会昌盆地
萤石矿
矿床特征
深部找矿
Huichang basin
fluorite mine
deposit characteristics
deep exploration
