摘要
通过钻孔岩心编录和测井解释资料的综合统计,以及野外地质露头分析,八仙口地区中下侏罗统含矿目的层可划分出3个沉积体系:辫状三角洲沉积体系、滨浅湖沉积体系和曲流河沉积体系。文章详细论述了各沉积体系的沉积相特征,分析了各沉积体系及沉积相与砂岩型铀矿的成矿关系,指出辫状三角洲沉积体系对砂岩型铀矿成矿最为有利,三角洲前缘、河口坝及分流河道微相是砂岩型铀矿主要的控矿沉积相。
By the statistics and comprehensive analysis of geologic documentation and well logging data of drill cores and outcrops in Baxiankou area of Turpan,the target uranium exploration layers of Low-middle Jurassic was divided into three depositional system：braided river-delta system;shallow lacustrine and swampy system and meandering river system.Characteristic of these systems and their relation to uranium mineralization was discussed in the paper.It was pointed out that the braided river-delta depositional system is the best environment to sandstone type uranium mineralization and the main ore-controlling micro-facies are distributary channel and the front delta.
出处
《铀矿地质》
CAS
CSCD
2016年第4期200-205,共6页
Uranium Geology
关键词
沉积体系
沉积相
砂岩型铀矿
depositional system
sedimentary facies
sandstone type uranium deposit
Baxiankou area
