内蒙古准和热音苏木地区岩石元素地球化学特征及成矿性分析

Geochemical Characteristics of Rock Elements and Metallogenic Analysis in Junhereyin Area in Inner Mongolia

内蒙古准和热音苏木地区属古亚洲成矿域内蒙古-大兴安岭成矿省二连-东乌旗晚古生代-中生代成矿带,是我国重要的铜及多金属集中分布区。野外调查采集了地表岩石(打块)样品61件,化验分析Au,Ag,Cu,Pb,Zn,As,Sb,Bi,Hg,W,Sn,Mo,Cd,Co,Cr,Ni共16种元素。通过综合岩石中元素的地球化学分布特征信息,分析岩石元素的含量、各岩石分区元素的含量、岩石元素富集离散等特征,利用因子分析、聚类分析,研究岩石元素的组合特征,对元素组合的物质属性进行判定,分析成矿性,指明了找矿方向,指出了该区具有寻找硫化物型的Pb,Cu,Bi有色金属矿产及与安山岩有关的Cd,Co矿的找矿潜力。

Junhe Reyinsumu area in Inner Mongolia belongs to Erlian-Dongwuqi late Paleozoic-Mesozoic metallogenic belt in Inner Mongolia-Daxing'anling in Paleo-Asian metallogenic region.It is an important copper and polymetallic concentrated distribution area in China.61 surface rock samples have been collected in this field survey,and 16 elements of Au,Ag,Cu,Pb,Zn,As,Sb,Bi,Hg,W,Sn,Mo,Cd,Co,Cr and Ni have been analyzed.Based on the information of geochemical distribution characteristics of elements in rocks,the contents of elements in rocks,the contents of elements in each rock zone,the enrichment and dispersion of elements in rocks have been analyzed.The combination characteristics of elements in rocks have been studied by factor analysis and cluster analysis,physical properties of element combination have been judged,the mineralization has been analyzed,and the direction of prospecting has been pointed out.At the same time,it is pointed out that this area has the prospecting potential for sulfide type Pb,Cu,Bi nonferrous metals and Cd,Co related to andesite.