中国北东部铀矿化与大地构造活动及演化的关系  

Uranium Mineralization in Northeast China and Its Relation with Tectonic Evolution

作　　者：王木清[1] 

机构地区：[1]核工业北京地质研究院,北京100029

出　　处：《铀矿地质》2013年第4期193-198,207,共7页Uranium Geology

摘　　要：笔者认为,中国北东部地区处于欧亚东西向海西期铀-多金属成矿带与环太平洋成矿带相交的部位,区内铀矿化产于前寒武纪基底褶皱阶段、古生代地槽褶皱阶段、反射活化阶段和地洼阶段,具有铀成矿作用时间长、矿化类型多的特点,4大工业类型的铀矿床都有产出。该区中新生代岩浆岩、特别是火山岩十分发育,地洼期铀成矿作用以热液型为主,特别是与火山作用有关的铀成矿作用具有十分重要的意义。Located in the intersection of Eurasian and rim pacific metallogenic belt, Northeast China is fa- vorable for uranium-poly-metall mineralization. The mineralization have been developed in the folding stage of Precambrian basement and Paleozoic geosyncline sediments, reactivation stage of folded base- ment and Diwa stage. The mineralization is of long time and with various types and produced 4 industrial types. Meso-ceno zoie magmatism, especially the vocalism was well developed in Northeast China, and correspondingly, hydrothermal dominated uranium mineralization, especially vocalism related minerali- zation was formed in the area with important significance.

关 键 词：地洼 构造活化 铀矿化 铀源层(体) 

分 类 号：P612[天文地球—矿床学]