贵州水城县宏运锰矿床主要地质特征研究  

Main Geological Features of Hongyun Manganese Ore Deposit in Shucheng County,Guizhou Province

作　　者：何同[1] 骆红星 肖林 陈登[1,2] HE Tong;LUO Hongxing;XIAO Lin;CHEN Deng(The Geological Team No.102,Guizhou Bureau of Geological Exploration and Mineral Resources,Zunyi,Guizhou 563003,China;Innovatin Center of Ore Resources Exploration Technology in the Region Bedrock,Ministry of Natural Resources of People′s Republic of China,Guiyang,Guizhou 550081,China)

机构地区：[1]贵州省地矿局102地质大队,贵州遵义563003 [2]自然资源部基岩区矿产资源勘查工程技术创新中心,贵州贵阳550081

出　　处：《中国锰业》2024年第3期15-18,共4页China Manganese Industry

基　　金：贵州省锰矿资源预测评价科技创新人才团队(编号:黔科合平台人才[2018]5618);贵州省优秀科技青年培养计划(编号:黔科合平台人才[2019]5654);贵州省科技计划项目(编号:黔科合战略找矿[2022]ZD003);贵州省科技计划项目(编号:黔科合支撑[2019]2868);贵州省地矿矿产勘查开发局重大研究课题(编号:黔地矿科合[2020]2、黔地矿科合[2021]3)。

摘　　要：贵州水城宏运锰矿床位于上扬子陆块、鄂渝湘黔前陆褶断带内,利用宏运锰矿普查成果,较详细地总结了矿床地质、矿体地质和矿石特征,区内锰矿体赋存于茅口组第二段中部,呈透镜体、似层状产出,产状与地层一致,深部原生碳酸锰矿石的矿石矿物主要为含锰方解石,次为含锰白云石,脉石矿物为方解石;浅部氧化锰矿的矿石矿物主要为软锰矿,次为含锰方解石,脉石矿物为方解石。矿石结构主要为细-粉-微-隐晶级他形粒状晶体结构,矿石构造以条带状和层纹状为主,Mn平均含量为15.25%。锰矿石自然类型为以含锰灰岩矿石为主,次为氧化锰矿石;矿石工业类型属于低磷低铁碱性含锰灰岩。The Hongyun manganese ore deposit in Shucheng,Guizhou,is located within the upper Yangtze landmass and the E-Y-Xiang-Qian foreland fold belt.Utilizing the results of the Hongyun manganese ore survey,this paper provides a detailed summary of the deposit’s geology,ore body geology,and ore characteristics.The manganese ore body is hosted in the central part of the second section of the Maokou Formation,appearing as a lenticular and bed-like body,with an attitude consistent with the strata.The ore minerals in the deep primary manganese carbonate ores are primarily manganese-bearing calcite,with minor manganese-bearing dolomite,and the vein mineral is calcite.The ore minerals of the shallow manganese oxide ores are mainly pyrolusite,with minor manganese-bearing calcite,and the vein mineral is calcite.The ore structure is predominantly fine-powdered,micro-cryptocrystalline,and xenomorphic granular crystal texture,with banded and laminated textures being predominant,and the average Mn content is 15.25%.The natural types of the ore are primarily manganese-bearing chert,followed by manganese oxide.The industrial type of the ore is characterized as a low-phosphorus,low-iron alkaline manganese-bearing chert.

关 键 词：宏运锰矿 地质特征 二叠纪 贵州水城 

分 类 号：P618.32[天文地球—矿床学]