我国铀资源对外依存度高达78%,供应安全不容乐观,煤系铀是一种非常规铀资源,对其开发能为我国铀资源安全供给提供保障。近年来随着煤铀协同勘查的推进,在我国北方地区发现了多个大型煤系砂岩型铀矿,对今后煤系铀矿勘探提供了大量可借鉴的参考资料。煤系铀矿成矿是一个复杂的过程,目前关于煤系铀成矿的研究还比较分散,尤其是对其赋存和成矿规律还不够明确。综合国内外最新研究成果,对煤系地层中铀矿床成因类型、铀的赋存状态、成矿有利条件和成矿模式进行了较为全面的阐述。并进一步提出了我国煤系铀矿的研究仍很不充足,特别亟需加强铀的微观地质选择过程、铀矿的矿化时间和期次等方面的研究,以便深入了解和阐释煤系铀矿的成矿机理,同时在今后研究中也需更加关注煤岩铀和砂岩铀的成因联系。

bearing uranium is an unconventional uranium resource, and its development provides a guarantee for the safe supply of ura-nium resources in China. In recent years, with the advancement of coordinated exploration of coal and uranium, several largecoal-bearing sandstone-typed uranium deposits have been discovered in northern China, which provides a large amount ofreferences for the exploration of coal-bearing uranium deposits in the future. The mineralization of coal-bearing uranium de-posits is a complex process, and current researches on coal-bearing uranium mineralization are relatively scattered, particu-larly that the occurrence and mineralization laws of uranium are not clear. In terms of the latest research achievements world-wide, this paper comprehensively elaborates on the genetic types, occurrence status, favorable conditions for mineralization,and mineralization modes of uranium deposits in coal-bearing strata. Moreover, it pointed that researches on coal-bearing u-ranium deposits in China is still insufficient, and there is an urgent need to strengthen research on the micro geological se-lection process of uranium, the mineralization time and stage of uranium deposits, in order to gain a deeper understandingand interpretation of the ore-forming mechanism of coal bearing-uranium deposits. Meanwhile, more attention should be paidto the genetic relationship between coal-rock uranium andsandstone uranium in the further research in the future.