铀矿地质2024，Vol.40Issue(1)：16-28,13.DOI:10.3969/j.issn.1000-0658.2024.40.002
鄂尔多斯盆地西北部特拉敖包矿产地铀矿石物质组成特征
Material Composition Characteristics of Uranium Ore From Telaaobao Mineral Occurrence,Northwestern Ordos Basin
摘要
Abstract
The Lower Cretaceous Huanhe Formation in the northwestern part of Ordos Basin is a newly discovered"horizon"for uranium ore exploration.This article conducted a detailed petrological and mineralogical research on the host sandstone of the Lower Cretaceous Huanhe Formation in the Telaaobao mineral occurrence so as to provide comprehensive and basic geological information for elucidating the uranium mineralization mechanism and expanding the regional exploration space in the region.Uranium minerals in sandstone with different colors are mainly coffinite,with organic matter mainly consisting of small amounts of carbon debris and fluid dynamic organic matter.However,metal minerals,non-metallic minerals,and clay minerals are diverse and have significant differences in various types of ores.It was believed that the sedimentary environment in the production area and surrounding areas of the Telaaobao mineral occurrence was an atypical and high sand content sedimentary environment of the discernible river delta.The uranium mineralization process has multiple sources of ore-forming fluids,and the mineralization process is complex.Gray-green sandstone has at least undergone a process of reduction-oxidation-rereduction.关键词
物质成分/砂岩型铀矿/成矿作用/下白垩统环河组/特拉敖包地区Key words
material composition/sandstone-type uranium deposits/mineralization/Huanhe Formation of Lower Cretaceous/Telaaobao area分类
天文与地球科学引用本文复制引用
张字龙,罗腾,贺锋,李子颖,刘鑫扬,李华明,王龙辉,刘持恒,李西得,张艳..鄂尔多斯盆地西北部特拉敖包矿产地铀矿石物质组成特征[J].铀矿地质,2024,40(1):16-28,13.基金项目
中国铀业地勘项目(编号:202201-8) （编号:202201-8）
国家重点基金项目(编号:U2167210) （编号:U2167210）
中核集团青年英才项目(编号:地QNYC2301) （编号:地QNYC2301）
中核集团集中研发项目(编号:中核科发2021-143号)联合资助. （编号:中核科发2021-143号）
