满洲里-额尔古纳地区铀成矿地质环境与境外邻区对比研究  

Study on the Geological Settsing of Uranium Mineralization Between Manzhouli-Erguna and Its Abroad Adjacent Areas

作　　者：李晓光[1,2] 薛春纪[1] 卫三元[2] LI Xiaoguang;XUE Chunji;WEI Sanyuan(China University of Geosciences,Beijing 100083,China;Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]中国地质大学(北京),北京100083 [2]核工业北京地质研究院,北京100029

出　　处：《铀矿地质》2020年第4期280-287,共8页Uranium Geology

摘　　要：满洲里-额尔古纳地区与俄罗斯斯特列利措夫铀矿田、蒙古多尔诺特铀矿田处于同一大地构造单元,有着相似的地质背景。通过对满洲里-额尔古纳地区铀成矿地质环境与境外邻区产铀火山盆地对比分析,认为两者的火山活动过程、火山岩地球化学特征相似;基底岩石及演化特征和火山活动方式存在差异;断裂分布特征类似,但断裂发育程度以及火山机构特征存在明显差异;铀矿化程度和矿化类型存在较大差异。铀成矿地质环境的差异性是满洲里-额尔古纳地区与境外邻区铀成矿远景不同的主要原因。The Manzhouli-Erguna area is located in the same tectonic unit as the Streltsovsky uranium ore field in Russia and the Dornott uranium ore field in Mongolia.Comparative analysis of the uranium metallogenic geological setting in Manzhouli-Erguna area and its adjacent areas abroad showed that they are similar in volcanic activity process and prtrogeochemical characteristics,but different in the basement rocks and evolution and volcanic activity patterns,they have similar stiking faults but different in faults density,volcanic mechanism,uranium mineralization type and scale.The above difference is the main reason resulting the metallogenic prospect difference between Manzhouli-Erguna area and its adjacent areas abroad.

关 键 词：满洲里-额尔古纳 火山岩 基底 构造 

分 类 号：P619.14[天文地球—矿床学]