【摘要】 本文通过含矿围岩特征及矿区地质等方面探讨了内蒙古自治区卓资县后干沟银、铅多金属矿的形成原因及找矿标志。该矿矿石矿物主要以方铅矿和闪锌矿为主,矿石中伴生银、铜等元素可综合利用。脉石矿物主要为石英,方解石次之。围岩蚀变以硅化、绿泥石化为主,绢云母化和黄铁矿化次之。矿化严格受断裂构造控制,呈脉状产出,为中低温热液多金属矿床。成矿物质来源为先期岩浆热液淋滤富含多金属元素的片麻岩叠加的结果,产于中太古界集宁群片麻岩(Ar2jn)中具绿泥石化、黄铁矿化等中低温蚀变矿物组合叠加特征的断裂破碎带为良好的找矿标志。更多还原

【Abstract】 The paper discussed the genesis and prospecting criteria of Hougangou Ag-Pb ore in Zhuozixian,Inner Monglia by the characteristic of wall rocks that contained ore and regional geology.The ore minerals were mainly Galena and sphalerite,associated with Ag and Cu elements. The gangue minerals are quartz and Calcite. The wall rock alteration were silicification and chloritization,and associated with sericitization and pyritization. Mineralization was strictly controlled by construction and lied out as veins,which was Low temperature hydrothermal polymetallic deposit.The source of metallogenic material was a result of gneiss leached by early magmatic hydrotherm,lied in the middle Archean Jining group gneiss.A combination of middle to low temperature alteration as pyritization and chloritization in fracture zone was a sign of prospecting criteria.更多还原