内蒙古花哈勒金地区铅锌多金属矿地质特征及找矿潜力  

GEOLOGIC CHARACTERISTICS AND PROSPECTING POTENTIALITY OF THE LEAD-ZINC POLYMETAL DEPOSITS IN HUAHALEJIN AREA,INNER MONGOLIA

作　　者：宝音乌力吉[1] 刘海明[2] 赵志军[1] 贺宏云[1] 郝晓琳[1] 王智云[1] 

机构地区：[1]内蒙古自治区地质调查院,内蒙古呼和浩特010020 [2]内蒙古自治区国土资源厅,内蒙古呼和浩特010010

出　　处：《地质与资源》2012年第5期432-436,共5页Geology and Resources

基　　金：内蒙古自治区地质勘查基金项目"内蒙古东乌珠穆沁旗花哈勒金铅锌矿普查"(06-2-KC36)资助

摘　　要：花哈勒金地区铅锌多金属矿赋存于中奥陶统多宝山组变质安山岩的断裂构造蚀变带内,矿体呈脉状受北东向构造及其伴生的断裂构造控制,铅锌矿石成分简单,伴生有银铜,围岩蚀变主要有褐铁矿化、黄铁矿化、绿帘石化、绿泥石化、碳酸盐化、硅化.多期次的岩浆侵入和侏罗纪火山岩的强烈喷发与区内成矿有利地层多宝山组,共同为本区多金属矿产的形成提供了较为充足的物质来源.成矿热液来源于岩浆侵入体,矿床成因属于热液充填(脉)型铅锌多金属矿床.通过分析其成矿地质特征、地球物理特征、地球化学特征、成矿地质环境等,认为找矿潜力巨大.The Pb-Zn polymetal deposits in Huahalejin area are hosted in the fault-alteration belt in the metamorphic andesite of Middle Ordovician Duobaoshan Formation. The ore bodies, occurring in veins, are controlled by NE-trending fault and associated structures, with lead-zinc ores, accompanied by silver and copper. The wallrock alteration involves limonitization, pyritization, epidotization, carbonation and silicification. The polymetal resources are derived from multistage magmatic intrusion, Jurassic volcanic eruption and the favorable strum of Duobaoshan Formation. The deposits belong to hydrothermal filling （vein） type. Study on the geology, geophysics, geochemistry and metallogenic environment of the deposit shows a great potentiality for prospecting.

关 键 词：多宝山组 变质安山岩 构造控制 热液充填(脉)型 找矿潜力 内蒙古 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]