矿床地质2018，Vol.37Issue(1)：175-190,16.DOI:10.16111/j.0258-7106.2018.01.013
准噶尔盆地东北部侏罗系砂岩型铀矿成矿环境与找矿方向探讨
A study of metallogenic environments and prospecting direction of Jurassic sandstone-type uranium deposit in northeastern Junggar Basin
摘要
Abstract
From various aspects such as uranium source,Mesozoic-Cenozoic tectonic evolution,Jurassic sedimentary characteristics and features of epigenetic alteration,this paper analyzes the metallogenic conditions of the sandstone-type uranium deposit in the northeast of Junggar basin.The authors propose that the U-rich granitiod intrusives provided abundant uranium sources,and the Middle Jurassic coal-bearing clastic sedimentary formation possessed favourable stratigraphic combinations for the development of sandstone-type uranium deposit.The unconformity formed in the Jurassic period showed that it had a channel and a time span for the reformation process of interlayer water with oxygen and uranium,which provided a material basis for the large-scale development of interlayer oxidation zone.It is thus held that the northern slope of Kalamali Mountain is the most favorable area for uranium prospecting,the main target horizon is Middle Jurassic Toutunhe Formation,and the prospecting type is interlayer oxidation zone type sandstone uranium deposit.关键词
地质学/卡拉麦里山/侏罗系/砂岩型铀矿/成矿条件/找矿方向Key words
geology/Kalamali Mountain/Jurassic/sandstone-type uranium deposit/metallogenic condition/prospecting direction分类
天文与地球科学引用本文复制引用
何中波,秦明宽,宋继叶,郭强,许强,刘章月,杨烨,黄少华..准噶尔盆地东北部侏罗系砂岩型铀矿成矿环境与找矿方向探讨[J].矿床地质,2018,37(1):175-190,16.基金项目
本文为核能开发项目《准噶尔大型叠合盆地地浸砂岩型铀矿预测技术研究》(编号:201205)和中国核工业地质局三江盆地铀矿资源调查评价项目(编号:201713)联合资助成果 （编号:201205）
