铀矿地质2025，Vol.41Issue(3)：487-496,10.DOI:10.3969/j.issn.1000-0658.2025.41.034
蒙其古尔铀矿床侏罗系含水岩组地下水水文地球化学特征与铀矿化的关系
Relationship Between Hydrogeochemical Characteristics and Uranium Mineralization of Jurassic Aquifer in Mengqiguer Uranium Deposit
摘要
Abstract
The sandstone-type uranium deposits in the Yili basin are controlled by the groundwater activity,the study on the relationship between water chemical conditions and uranium mineralization will help the uranium exploration.Based on the research of chemical characteristics,radioactive chemical characteristics,uranium occurring forms and saturation degree of the groundwater in the Mengqiguer uranium deposit,the relationship between them and uranium mineralization was discussed.The uranium in the ore-bearing aquifer were found main occurring as[UO2(CO3)2]2-and[UO2(CO3)3]4-,and saturated in content,which is conducive to the precipitation of uranium minerals.Uranium in water is easier to migrate in the form of complexes under alkaline environments,but the migration ability will decreases in reducing environments,and resulting the precipitation and enrichment of uranium in the front line of the oxidation zone.The smaller the gradient value of the oxidation-reduction potential difference was found with the stronger the mineralization capacity.The established relationship between the water chemical characteristics and uranium mineralization will benefit the further uranium exploration of the Mengqiguer uranium deposit.关键词
伊犁盆地南缘/蒙其古尔铀矿床/水文地球化学特征/成矿环境/电位差梯度值Key words
southern margin of Yili basin/Mengqiguer uranium deposit/hydrogeochemical characteristics/ore-forming environment/gradient value of potential difference分类
天文与地球科学引用本文复制引用
陈程,王福东,任满船,张虎军,罗星刚..蒙其古尔铀矿床侏罗系含水岩组地下水水文地球化学特征与铀矿化的关系[J].铀矿地质,2025,41(3):487-496,10.基金项目
中国核工业地质局项目"新疆伊犁盆地砂岩型铀矿资源调查评价与勘查"(编号:202205)资助. （编号:202205）
