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.
出处
《地质与资源》
CAS
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
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
Duobaoshan formation
metamorphic andesite
structural control
hydrothermalprospecting potentiality
Inner Mongoliafilling(vein) type