内蒙古东乌旗阿尔哈达铅锌矿区矿床成因探讨  

THE DISCUSSION ABOUT GENESIS OF ARHADA LEAD & ZINC DEPOSIT IN DONGWUQI COUNTY,INNER MONGOLIA,CHINA

作　　者：钱明 高群学 

机构地区：[1]中国冶勘总局一局520队,河北邢台054000 [2]中国冶勘总局第一地质勘查院,河北三河065201

出　　处：《地质找矿论丛》2006年第B10期70-73,共4页Contributions to Geology and Mineral Resources Research

摘　　要：阿尔哈达铅锌矿主要产于泥盆系的NW向断裂破碎带中，矿体具雁行排列、局部交叉产出的特征，以盲矿体为主；成矿早期可能以岩浆热液（399-407℃）为主，而中、晚期的热液以大气降水或混合水（194-287℃）为主；硫分别来源于岩浆热液、沉积地层和大气降水；铅同位素测试结果则显示了成矿（岩）物质的混源特点。矿床为与岩浆热液有关的受断裂控制的中温热液铅锌（银）矿。Arhada Pb-Zn deposit occurs mainly in cataclastic zone of Devonian System and ore bodies are dominated by blind ones in en echelon and locally cut with each other. Magmatic fluid （399-407℃） dominated the ore-forming stage and meteoric water or mixed fluid （194-287℃） is dominant in middle, late stages. Sulfur was derived from sedimentary strata and meteoric water. Pb isotope composition shows multiple sources of ore materials. It is a magmatic hydrothermal fluid-related and cataclastic fracture-controlled mesothermal Pb-Zn deposit.

关 键 词：阿尔哈达铅锌矿 矿床成因 东乌旗 内蒙古 

分 类 号：P611[天文地球—矿床学] P618.4[天文地球—地质学]