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《Mineral Exploration》 2018-01
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Geological characteristics and ore-forming mechanism of the siliceous vein-type Uranium deposit: A case study of Geminggou Uranium deposit,Gansu

SONG Zhen-tao;ZHAO Hong-rui;QI Cheng;WANG Sheng-yun;ZHANG Zhan-bin;RONG Xiao;SHAO Dong;KONG Zhi-zhao;ZHAO Cong;Airborne Survey and Remote Sensing Center of Nuclear Industry;514th Team of North China Geological Exploration Bureau;Beijing Research Institute of Uranium Geology;No.203 Research Institue of Nuclear Industry;  
This paper analyzes the ore-forming material source,hydrothermal activity,migration path of the ore-forming material,and discusses the ore-forming mechanism of siliceous vein-type uranium deposit after introduce the regional geological metallogenic environment,deposit characteristics,hydrothermal alteration,elemental geochemistry and uranium-bearing mineralogy of Geminggou deposit. Geminggou deposit is thought to be the objective product in special time-space domain collectively controlled by strata-rock mass-structure-hydrothermal activities. Namely,the regional uranium-bearing formation is the material basis for mineralization,the ore-forming hydrotherm was derived from the mantle ichor( HACONS),while the magma and postmagmatic hydrotherm served as the carrier for uranium migration. The metallogenic model of uranium emphasizes that the precipitation process of later siliceous vein hydrotherm is the concentration process of ore-forming material.
【Fund】: 中国核工业地质局基础地质专项(编号:201544);; 核工业地质局项目(编号:地D1603)联合资助
【CateGory Index】: P619.14
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