西北地质Issue(2)：181-190,10.
内蒙古别鲁乌图铜硫多金属矿成因类型及找矿标志
Genetic Type and Prospecting Criteria of Bieluwutu Copper-sulfur Polymetallic Mine in Inner Mongolia
摘要
Abstract
Bieluwutu copper-sulfur polymetallic mine is a larger deposit in central Inner Mongolia.The geochemical analysis of main minerals indicate that the iron pyrite has the characteristics of the magmatic hydrothermal-type iron pyrite such as low S/Fe ratio (from 1.795 to 2.002)and high Co/Ni ratio(more than 1).Orpiment iron pyrite,lead zinc ore and sphalerite all present the features of the mid-high temperature genetic minerals.Combining the structure characteristics of the ore,formation order of minerals,alteration of surrounding rocks and formation temperature of the deposit,the authors believe that the genetic type of the studying deposit is vein deposit of hydrothermal filling metasomatic type after the magma stage.Theδ34 S‰ value of pyrite,orpiment iron pyrite and arsenopyrite is within a narrow range between 0.2‰ and 1‰, approximate to the sulfur content of meteorites. It is indicated that the metallogenic material is possibly related to the neutral-basic intrusive rocks in late Variscan.The direct prospecting criterion is gossan,which is the product of metal sulfide weathering and leaching. Moreover, the late Variscan intrusive rocks, NEE-WE fractures and obvious hydrothermal alteration such as silication, chloritization and talcose are also important prospecting criteria.关键词
别鲁乌图/铜硫多金属矿/单矿物地球化学/成因类型/找矿标志Key words
Bieluwutu/copper-sulfur polymetallic mine/single mineral geochemistry/genetic type/prospecting criteria分类
天文与地球科学引用本文复制引用
徐通,李鹏,王银川,陈功..内蒙古别鲁乌图铜硫多金属矿成因类型及找矿标志[J].西北地质,2014,(2):181-190,10.基金项目
苏尼特右旗朱日和铜业有限责任公司硫铅锌铜矿的详查项目“内蒙古苏尼特右旗别鲁乌图铜硫多金属矿详查”(200817号) （200817号）
