铀矿地质2024，Vol.40Issue(1)：157-170,14.DOI:10.3969/j.issn.1000-0658.2024.40.013
巴丹吉林盆地路井凹陷铀成矿条件分析及找矿方向探讨
Analysis of Uranium Metallogenic Conditions and Prospection Direction in Lujing Sag,Badan Jaran Basin
摘要
Abstract
In order to explore the prospecting direction and type of ore uranium depost and guide ore uranium depost in the Badan Jaran Basin and its surrounding areas,this paper delineated the key ore exploration horizons by analyzing the structure,sedimentary construction,and uranium mineralization and transformation characteristics of the Lujing Sag in the Badan Jaran Basin.Through systematic analysis of uranium source,tectonic evolution,paleoclimate environment,hydrogeology,lithology of target layer,epigenetic alteration and uranium mineralization characteristics,It was considered that the Lujing Sag was rich in uranium sources,the target layer developed mud-sand-mud structure,groundwater recharge-run off-discharge system,and the interlayer oxidation zone was well developed,which laid the prerequisites for sandstone type uranium mineralization.Combined with the uranium mineralization clues revealed in the current borehole,it is confirmed that the Lujing Sag has uranium mineralization potential and prospecting space.The main prospecting horizon is Lower Cretaceous Suhongtu Formation,and Lower Cretaceous Bayingebi Formation is worth to study more.The main ore prospecting structure of Suhongtu Formation is the river way wing and the searching type is interlayer oxidation zone.The ore prospecting position of Bayingebi Formation is mainly the fan delta front,searching for phreatic oxidation syn-sedimentary uranium deposits.关键词
成矿条件分析/找矿方向探讨/路井凹陷/巴丹吉林盆地Key words
analysis of mineralization conditions/exploration of mineral exploration direction/Lujing Sag/Badan Jaran Basin分类
天文与地球科学引用本文复制引用
罗森森,牛霆,孟龙,王刚,刘武生,纪宏伟,孟秋熠..巴丹吉林盆地路井凹陷铀成矿条件分析及找矿方向探讨[J].铀矿地质,2024,40(1):157-170,14.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:2022-21)和中核集团集中研发项目"砂岩型铀矿多重耦合地质成矿作用与时空定位"(编号:中核科发2021-143号)联合资助. （编号:2022-21）
