铀矿地质2024，Vol.40Issue(4)：659-670,12.DOI:10.3969/j.issn.1000-0658.2024.40.059
准噶尔盆地西北缘下白垩统吐谷鲁群地质特征及砂岩型铀矿找矿方向
Geological Characteristics of the Lower Cretaceous Tugulu Group and Uranium Prospecting Direction in the Northwestern Margin of Junggar Basin
摘要
Abstract
Tectonic setting in the northwestern margin of the Junggar has been relatively stable since Late Yanshan period and the delta sedimentary system was developed in the Lower Cretaceous Tugulu Group.In Xiazijie-Delunshan area,thick-layer sand body was deposited in the Member a and Member b of the Tugulu Group.In recent years,the interlayer oxidation zone has been found in the Tugulu Group,which has good uranium metallogenic conditions and prospecting prospects.Guided by the evaluation system of sandstone-type uranium deposits,this paper analyzed the structure,lithology-lithofacies and epigenetic alteration in the study area.It was considered that Delunshan area is the first choice for finding sandstone-type uranium deposits,the main target stratum is the Tugulu Group,and the favorable location for uranium mineralization and prospecting were the place where the interlayer oxidation zone pinch-out and rich organic matter(or pyrite)was developed in the oxidation zone.关键词
砂岩型铀矿/铀找矿方向/下白垩统吐谷鲁群/准噶尔盆地Key words
sandstone-type uranium deposits/uranium prospecting direction/Lower Cretaceous Tugulu Group/Jungar Basin分类
天文与地球科学引用本文复制引用
陈虹,杨彦波..准噶尔盆地西北缘下白垩统吐谷鲁群地质特征及砂岩型铀矿找矿方向[J].铀矿地质,2024,40(4):659-670,12.基金项目
中国核工业地勘基金项目"新疆准噶尔盆地铀矿资源调查评价与勘查"(编号:202206)资助. （编号:202206）
