摘要
本区域属大兴安岭华力西晚期褶皱带,属中朝古板块和西伯利亚古板块之问显生宙地槽褶皱区的一部分,后经燕山、喜山运动的叠加,多期岩浆活动,形成了复杂的构造形态。1/5万重砂测量测量中发现铜矿、闪锌矿、白钨矿、自然金等;原生晕测量中发现锌多金属异常,以为Zn主,伴生Cu、Pb、Cr、Bi。异常近椭圆状分布,浓集中心明显,具浓度分带,浓度梯度大。经1/25000沟系土壤测量、1/10000地球化学土壤测量验证,异常再现良好,经槽探揭露,在探槽中进行地球化学岩石测量和刻槽取样分析,发现锌矿体。矿体赋存在泥、砂质板岩中,矿物主要为闪锌矿,呈微细脉状及侵染状。蚀变有硅化、绿帘石化、黄铁矿化、褐铁矿化、绿泥石化、高岭土化、绢云母化等。推测矿床成因为热液型锌多金属矿床,找矿前景乐观。
This area of the HuaLi west China is late fold belt and the ancient plate tectonics and Siberia to the part of the geosynclinals fold after Yanshan and Himalayan movement,the superposition of magmatic activity,formed a complex structure form.There is 1/5 million placer measuring units,copper,found in nature,tungsten white gold,etc.Found in native dizzy measure the abnormal metal of Zn,think more Zn,associated with Cu,Pb,Cr,Bi,abnormal nearly elliptic shaped distribution,thick,with concentration on heart and gradient.Through 1/25,000 groove is measured,1/10000 soil geochemistry,abnormal reappearance soil survey revealed by slot,agent,the groove of geochemical rock measurement and groove sample analysis,found disseminated.In the mud and sand cretaceous,the ore mineral quality is SLATE,mainly for a subtle chakra sphalerite,and infection.There were silicification,epidotization,pyritization,ferritization,chloritization,kaolinization,sericitization and so on in the alteration.Gather deposits are in hot liquid for the type of more zinc erzmetall bed,and the perspective of prospect is optimistic.
出处
《河北联合大学学报（自然科学版）》
CAS
2011年第4期93-96,共4页
Journal of Hebei Polytechnic University:Social Science Edition
关键词
锌矿床
异常特征
土壤测量
找矿前景
勒格代扎拉格
zinc ore deposit
unusual feature
soil measurement
ore propects
Le lattice and pierced
