额尔古纳地区铀矿化特征及找矿方向

Uranium Mineralization Feature and Prospecting Target in E'erguna Region, Inner Mongolian

文章通过对额尔古纳地区的铀矿化特征进行梳理,划分了铀矿化类型;从构造分区、基底特征、成矿层位、构造控矿和热液蚀变等方面,分析了该地区铀成矿的主要控制因素。在此基础上,探讨了额尔古纳地区热液型铀矿的找矿方向,认为该区与俄罗斯红石地区同属一条成矿带,硅化破碎带型和蚀变岩型铀矿应是其主要的找矿类型,区内自下而上存在3种成矿空间。

The characteristic of uranium mineralization was summarized in E＇erguna region, Inner Mongolian, China. The main ore-controlling tactors was analyzed in the view of geotectonic zonation, basement characteristic, mineralization layer, ore-controlling structure and hydrothermal alteration. Based on the analysis, the prospecting direction of hydrothermal uranium mineralization in the study area was discussed and it was tound that the studying area belongs to the same metallogenic belt with Strelyzov （Red stone） area of Russia. The two main uranium mineralization include silicified fracture zone type and alteration rock type and there are three vertically metallogenic spaces in the study area.