铀矿地质2025，Vol.41Issue(2)：257-271,15.DOI:10.3969/j.issn.1000-0658.2025.41.019
巴丹吉林盆地伊肯乌苏凹陷砂岩型铀矿矿物学与地球化学特征
Mineralogical and Geochemical Characteristics of Sandstone-type Uranium Deposits in Yikenwusu Depression of Badain Jaran Basin
摘要
Abstract
Badain Jaran Basin is one of the medium to large basins in northern China,with a relatively low level of uranium exploration.In recent years,profitable mineralization was discovered for the first time in boreholes in Yikenwusu depression on the northwest edge of the basin.Study of the mineralogical and geochemical characteristics of sandstone hosting the uranium ores,ore-forming environment and model in the basin will provide theoretical basis for the next exploration.The article systematically analyzed the uranium mineral types,occurrence states,and main,trace,and rare earth element characteristics of the ore bearing rocks,and clarified the main uranium mineral types,occurrence states,and indicator elements closely related to uranium mineralization in the area,and discussed the sedimentary sources,mineralization environments,and mineralization models.Research result has shown that uranium minerals in Yikenwusu depression are mainly composed of uranite,which is mainly found at the edges of detrital particles.The source of mineralization rock came from the intermediate basic granite body at the edge of the basin.Trace elements Cu,Zn,Mo,Co,Ni,Pb are positively correlated with the U content,and can serve as indicators for uranium enrichment,the overall mineralization environment was a transitional environment of weak oxidation weak reduction,and uranium mineralization was mainly characterized by interlayer oxidation zones,with a small amount of later hydrothermal alteration enrichment.关键词
砂岩型铀矿/铀矿物学/地球化学/伊肯乌苏凹陷/巴丹吉林盆地Key words
sandstone-type uranium deposits/uranium mineralogy/geochemistry/Yikenwusu depression/Badain Jaran Basin分类
天文与地球科学引用本文复制引用
孟龙,罗森森,牛霆,王刚,郭文,李伟涛,孟秋熠,张文文..巴丹吉林盆地伊肯乌苏凹陷砂岩型铀矿矿物学与地球化学特征[J].铀矿地质,2025,41(2):257-271,15.基金项目
中国核工业地勘基金项目"巴丹吉林盆地及周缘铀矿资源调查评价"(编号:2024-21) （编号:2024-21）
"巴丹吉林盆地居延海铀矿资源调查评价"(编号:2024-21-1) （编号:2024-21-1）
"走廊盆地群西部铀矿资源调查评价"(编号:2024-21-6)联合资助. （编号:2024-21-6）
