中国非常规铀资源  

Unconventional uranium resources in China

作　　者：漆富成[1] 张字龙[1] 李治兴[1] 王志明 何中波[1] 王文全[1] 

机构地区：[1]核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室,北京100029

出　　处：《铀矿地质》2011年第4期193-199,共7页Uranium Geology

摘　　要：中国非常规铀资源主要包含黑色岩系型和盐湖型。其中与黑色岩系有关的含铀黑色岩系型、含铀磷块岩型、铀多金属磷块岩型是对中远期保障我国铀资源可持续供给有重要意义的类型。陆缘裂谷、陆缘裂陷环境是中国黑色岩系非常规铀资源最重要、最有利的成矿环境,形成U-Cd型、U-V-Mo型、U-V-Re型、U-V-Ni-Mo型和U-V-Ni-Mo-Re-Tl型等地球化学组合。中国黑色岩系非常规铀资源铀成矿作用受控于陆缘裂谷、陆缘裂陷环境下伴随海底喷流作用和海底火山喷发而沉积的由热水沉积硅质岩、硅质磷块岩和碳硅泥岩组成的富铀海相黑色岩系,热水沉积作用或喷气-沉积是形成中国黑色岩系非常规铀资源或发生大规模铀成矿作用的成矿机制。Unconventional uranium resources in China mainly include black-rock series,peat,salt lake and evaporitic rocks.Among them,uraniferous black-rock series,uraniferous phosphorite and uranium-polymetallic phosphorite connected with black-rock series are important types for the sustainable support of uranium resources in China.Down-faulting and epocontinental rift in continental margin are the most important and beneficial ore-forming environment for unconventional uranium resources of black-rock series in China and produced a series of geochemistry combinations,such as,U-Cd、U-V-Mo、U-V-Re、U-V-Ni-Mo and U-V-Ni-Mo-Re-Tl.Unconventional uranium resources of black-rock series in China is related to uranium-rich marine black-rock series which are made up of hydrothermal sedimentary siliceous rocks,siliceous phospheorite and carbonaceous-siliceous-pelitic rock and settled in the continental margin down-faulting and epicontinental rift accompanied by submarine backwash and marine volcano eruption.Hydrothermal sedimentation or exhalation sedimentary is the mechanism to form unconventional uranium resources in black-rock series or large scale uranium-polymetallic mineralization in China.

关 键 词：中国非常规铀资源 黑色岩系 成矿环境 成矿机制 

分 类 号：P619.14[天文地球—矿床学]