内蒙古白音沙那林场破火山机构铀成矿条件分析

摘要

白音沙那林场破火山机构位于扎兰屯火山岩型铀成矿远景带南部的林东盆地内，同时也是黄岗梁乌兰浩特多金属成矿亚带的组成部分。文章对破火山机构的大地构造位置、区域重磁特征、构造特征、基底及盖层的含铀性、岩浆活动、围岩蚀变及铀矿化特征等方面进行分析，认为该破火山机构有较好的铀成矿潜力。%Baiyinshana woodland caldera is located in Lindong basin,southern zhalantun volcanic type uranium prosopective belt,it is also the important component of Huanggangliang wulanhaote polymeG tallic mineralization subzone.The tectonic setting, structure and gravity feature, magmatism, uanium content in the basement and overlayer,characters of uranium mineralization were studied to analyze the metalG logenic condition.It was found that Baiyinshana woodland caldera has good ore forming potential.