摘要
本文对海拉尔盆地西部砂岩型铀矿成矿作用进行了U Pb同位素年代学研究 ,获得西胡里吐盆地砂岩型铀矿U Pb等时线年龄分别为 :81± 2Ma、 44± 2Ma、 9± 2Ma和 2± 0Ma;克鲁伦凹陷砂岩型铀矿U Pb等时线年龄为 67± 5Ma、 5 1± 8Ma。铀成矿年龄与研究区构造和古气候演化历史相对应。
The study on U-Pb isotopic dating of sandstone-type uranium mineralization in western Hailaer basin,namely,Xihulitu and Kelulun depressions,has been carried out.The ages of 81±2 Ma,44±2 Ma,9±2 Ma,2±0 Ma for sandstone-type uranium mineralization in Xihulitu depression and 51±8 Ma,67±5 Ma for sandstone-type uranium mineralization in Kelulun depression have been obtained for the first time by U-Pb isochron dating.These mineralization ages are in good accordance with the tectonic and climatic evolution histories of the study area.
出处
《铀矿地质》
CAS
CSCD
2004年第3期146-150,182,共6页
Uranium Geology
关键词
海拉尔盆地
砂岩型铀矿
U-Pb等时线
成矿年龄
Hailaer basin
sandstone-type uranium deposit
U-Pb isochron
mineralization age
