作者机构：
[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] School of Nuclear Resources Engineering, Hunan Provincial Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang;Hunan;421001, China;[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] Hunan;[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] 421001, China
通讯机构：
[Tan, K.] S;School of Nuclear Resources Engineering, Hunan Provincial Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang, Hunan, China
作者机构：
[Zheng Jian; Hu Yang; Wang Xiaoning; Song Jia; Duan Xianzhe; Yang Bifeng; Feng Zhigang] Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Hunan, Peoples R China.;[Hu Yang] Univ South China, Post Doctoral Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.;[Hu Yang] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Hunan, Peoples R China.
会议名称：
3rd International Conference on Machinery, Materials Science and Energy Engineering (ICMMSEE)
会议时间：
JUL 18-19, 2015
会议地点：
Wuhan, PEOPLES R CHINA
会议主办单位：
[Duan Xianzhe;Zheng Jian;Wang Xiaoning;Yang Bifeng;Song Jia;Feng Zhigang;Hu Yang] Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Hunan, Peoples R China.^[Hu Yang] Univ South China, Post Doctoral Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.^[Hu Yang] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Hunan, Peoples R China.
关键词：
Sandstone-type uranium deposit;Chemical speciation of uranium;Sequential chemical extraction;In-situ Leaching
摘要：
Sequential chemical extraction procedure was modified from Tessier process and demonstrates its application to sandstone uranium exploration. Use it to study uranium speciation with six different samples from in-situ leaching sandstone-type uranium deposits. The chemical speciation of uranium in samples was classified into six speciation: the exchangeable ion, carbonates bound, sulfide-organic matter speciation bound, amorphous Fe-Mn oxides bound, sparry Fe-Mn oxides bound and the residual state. Through the research, the uranium distribution characteristics were significantly different whether they were in different samples or in the same sample. Therefore, the research on chemical speciation of uranium Deposit before the production is essential to reasonable evaluation of Deposit and can guide the technology of in-situ leaching uranium Deposit. It also can rich the mineralization mechanism of sandstone-type uranium Deposit.
作者机构：
[Wangzhengqing; Liushan; Huyang; Xieyanshi; Duanxianzhe; Fengzhigang; Chenliang] Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Hunan, Peoples R China.;[Huyang] Univ South China, Postdoctoral Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.;[Huyang] Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Hunan, Peoples R China.;[Jiazhikun] Sinochem Petr Explorat & Prod Co Ltd, Beijing 100031, Peoples R China.
会议名称：
4th International Conference on Energy and Environmental Protection (ICEEP)
会议时间：
JUN 02-04, 2015
会议地点：
Shenzhen, PEOPLES R CHINA
会议主办单位：
[Huyang;Fengzhigang;Xieyanshi;Chenliang;Duanxianzhe;Wangzhengqing;Liushan] Univ South China, Sch Nucl Resources Engn, Hengyang 421001, Hunan, Peoples R China.^[Huyang] Univ South China, Postdoctoral Res Stn Min Engn, Hengyang 421001, Hunan, Peoples R China.^[Huyang] Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Hunan, Peoples R China.^[Jiazhikun] Sinochem Petr Explorat & Prod Co Ltd, Beijing 100031, Peoples R China.
关键词：
sandstone-type uranium deposit;chemical speciation of uranium;sequential chemical extraction;in-situ Leaching
摘要：
This paper presents a method of studying uranium speciation with six different hole depth and numbers from in-situ leaching sandstone-type uranium deposits by a sequential extraction procedure and demonstrates its application to sandstone uranium exploration. The chemical extraction procedure was modified from Tessier. The chemical speciation of uranium in samples was classified into six speciation: exchangeable ions, bound to carbonates, bound to sulfide-organic matter, bound to amorphous Fe-Mn oxides/bound to hydroxide, bound to sparry Fe-Mn oxides/bound to hydroxide and residual speciation. Studying the chemical speciation of uranium by method of sequential extraction show that the uranium distribution characteristics were significantly different whether they were in different samples or in the same sample. Therefore, a research on chemical speciation of Deposit behind the production is essential to reasonable evaluation of Deposit and guide the technology of in-situ leaching uranium Deposit. It also can rich the mineralization mechanism of sandstone-type uranium Deposit. The average amounts of bound to carbonates, exchangeable ions, bound to amorphous Fe-Mn oxides, residual speciation, bound to sulfide-organic matter and bound to sparry Fe-Mn oxides in order as 58.9%, 22.6%, 13.3%, 2.3%, 1.4% and 1.4%.
作者机构：
[Yanshi XIE; Kaixuan TAN; Zhenping TANG; Yang HU; Chunguang LI; Zhaozhao WANG; Fei YANG; Jianwen YIN] School of Nuclear Resource Engineering, University of South China, Hengyang 421001 China
通讯机构：
[Yanshi XIE] S;School of Nuclear Resource Engineering, University of South China, Hengyang 421001 China
会议名称：
The 14th Quadrennial Interbational Association on the Genesis of Ore Deposium Symposium(第十四届国际矿床成因协会大会)
会议时间：
2014-08-19
会议地点：
昆明
会议论文集名称：
The 14th Quadrennial Interbational Association on the Genesis of Ore Deposium Symposium(第十四届国际矿床成因协会大会)论文集
摘要：
South China includes two typical Cathysian Diwa regions (i.e., Southeast Diwa and Kiangnan Diwa regions). The complicated multi-stage tectono-magmatic evolution resulted in the widespread granites, and Mesozoic-Cenozoic rifted basins, as well as NE-NNE and NW trending deep faults, and led to the formation of numerous hydrothermal uranium ore deposits. Fractal analyses and numerical simulation of the spatial distribution of faults, granite bodies and uranium ore deposits with fractal distribution were used to discuss the tectono-magmatic activization and fractal dynamics of hydrothermal uranium mineralization in South China, based on the theories of polygenetic compound and tectonic unit metallogeny. The calculated box counting dimensions of faults from Southeast Diwa and Kiangnan Diwa regions were 1.6800 and 1.5939, respectively, indicating that the faults in the former region are favorable for uranium mineralization. The calculated box counting dimension (D) and perimeter-area fractal dimension (DPA) of the granite bodies emplaced during Precambrian to late Yanshanian periods indicated that the D values increase with the granite outcrop area while DPA values increase with the granite shape complexity, demonstrating the strengthening complexity of tectono-magmatic activization. In addition, the D and DPA values of the granite bodies during the periods of Late Yanshanian, Early Yanshanian and Indosinian were relatively high, demonstrating that they also facilitated uranium mineralization. On the other hand, the calculated values (i.e., 1.0254) of box counting dimension of hydrothermal uranium ore deposits in South China are significantly lower than that of faults, consisting with the low distribution density and enrichment of uranium ore deposits. Our simulated results of Cellular Automata Model show that the fractal dimension values of faults and mineralization increase with time, and the large-scale mineralization occurs when these values reach the critical condition of fractal penetration during the mid-late stage simulation. Overall, the fractal evolution of complicated multi-stage tectono-magmatic activization in the two typical Cathysian Diwa regions produced the fractal distribution characteristics of polygenetic compound hydrothermal uranium deposits in South China.
