准噶尔盆地东缘卡姆斯特地区中侏罗统头屯河组砂体沉积特征及其与铀成矿关系  

The Ralationship between the Characteristics of Sandbody and Uranium Mineralization of Toutunhe Formation of the Middle Jurassic in Kamster Area,Eastern Margin of Junggar Basin

作　　者：钟灵 聂逢君[1] 王果[2] ZHONG Ling;NIE Feng-jun;WANG Guo(School of Earth Sciences,East China University of Technology,Nanchang 330000,China;Geologic Party No. 216,CNNC,Urumqi 830011,China)

机构地区：[1]东华理工大学地球科学学院,南昌330000 [2]核工业二一六大队,乌鲁木齐830011

出　　处：《科学技术与工程》2019年第26期75-82,共8页Science Technology and Engineering

基　　金：国家“973”计划(2015CB453002);国家自然科学基金(41562006);江西省研究生创新基金(YC2017-B080)资助

摘　　要：近年来,中国核地质系统地勘单位在准噶尔盆地东缘卡姆斯特地区中侏罗统头屯河组发现并控制近万吨砂岩型铀矿资源,使该区成为新的找矿热点。以该层位为研究重点对象,从主砂体展布、岩性组合、沉积韵律等分析入手,认为头屯河组在该区主要发育辫状河三角洲沉积,其砂体整体表现为“下粗上细、下砾上砂”的特征,为含矿流体运移和储矿提供了良好的空间,可为准噶尔盆地今后铀矿资源勘查工作提供参考。In recent years,the geological prospecting units of China’s nuclear geological system have discovered and controlled the near-million tons of sandstone-type uranium resources in the Toutunhe formation of the Middle Jurassic in Kamuster area,the east of the Junggar Basin,making this area be a new prospecting hotspot. The distribution of main sand bodies,lithologic associations,sedimentary rhythms were analyzed. The results show that Toutunhe formation can be considered as braided river delta in Kamster Area. The Toutunhe formation displays a significant sedimentary features of normal grain size order and gravel sand,which provides a good reservoir space for migration and storage of the ore fluid. It is clear that the prospecting direction in the future and this paper can provide reference for the future exploration of uranium resources in Junggar Basin.

关 键 词：准噶尔盆地 卡姆斯特地区 砂体特征 铀成矿 

分 类 号：P619.14[天文地球—矿床学]