Hydrothermal alteration and elemental mass changes of the Xiangyangping uranium deposit in the Miao’ershan ore field, South China

2020 ◽  
Vol 125 ◽  
pp. 103675
Author(s):  
Chi-Da Yu ◽  
Kai-Xing Wang ◽  
Xiao-Dong Liu ◽  
Jia-Yong Pan ◽  
Qi Chen ◽  
...  
2019 ◽  
Vol 124 (11) ◽  
pp. 10704-10720 ◽  
Author(s):  
Liang Gao ◽  
Qingfei Wang ◽  
Jun Deng ◽  
Fangge Chen ◽  
Shihong Zhang ◽  
...  

Clay Minerals ◽  
1996 ◽  
Vol 31 (3) ◽  
pp. 291-299 ◽  
Author(s):  
C. Mosser ◽  
M. Boudeulle ◽  
F. Weber ◽  
A. Pacquet

AbstractThe uranium deposit (1350 Ma) of Cigar Lake (Canada) is surrounded by a late hydrothermal alteration halo (330 Ma) containing Fe-illites and kaolinites. Crystallochemical characterization of the kaolinites has been carried on the microscale using XRD, electron microscopy (SEM and TEM) coupled with EDX spectrometry and EPR. The large, well-crystallized particles show large amounts of Fe (0.9–1.8%) and V (0.3–0.5%). According to EPR measurements performed on both random powders and oriented samples, V occurs as the vanadyl ion VO2+, in substitution within the octahedral sheet of the kaolinite structure in the same way as Fe3+. Kaolinite growth proceeded through the hydrothermal alteration of anterior phyllosilicates devoid of V, induced by fluids which leached V-rich titano-magnetites in the surrounding sandstones.


2007 ◽  
Vol 26 (4) ◽  
pp. 425-433 ◽  
Author(s):  
Guoquan Zhang ◽  
Ruizhong Hu ◽  
Xianwu Bi ◽  
Haisheng Feng ◽  
Pengqiang Shang ◽  
...  

2014 ◽  
Vol 138 ◽  
pp. 59-71 ◽  
Author(s):  
Kui-Dong Zhao ◽  
Shao-Yong Jiang ◽  
Wei-Feng Chen ◽  
Pei-Rong Chen ◽  
Hong-Fei Ling

2015 ◽  
Vol 65 ◽  
pp. 968-978 ◽  
Author(s):  
Jin-Cheng Luo ◽  
Rui-Zhong Hu ◽  
Mostafa Fayek ◽  
Chu-Si Li ◽  
Xian-Wu Bi ◽  
...  
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