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.
出处
《铀矿地质》
CAS
CSCD
2013年第4期193-198,207,共7页
Uranium Geology
关键词
地洼
构造活化
铀矿化
铀源层(体)
Diwa
tectonic activation
uranium mineralization
source rocks of uranium.
