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Discovery of antimony and distribution characteristics of associated elements in Huize Pb-Zn deposit

LI Chao_yang1, LIU Yu_ping1, ZHANG Qian1, PI Dao_hui1, ZHANG Wen_lan2 and CHEN Jin3(1 Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, Guizhou, China; 2 Key State Laboratory for Mineral Deposits Research, Nanjing University, Nanjing 210093, Jiangsu, China ; 3 Huize Pb_Zn Mine of Yunnan, Huize 654211, Yunnan, China)  
It has been held that the Huize Pb_Zn deposit contains comprehensive useful elements such as Ag, Cd and Ge. Nevertheless, the exact contents, modes of occurrence and distribution regularity of these elements, except for silver, are not clear. Based on systematic observation and sampling of the main orebody, the authors conducted rock and mineral identification, chemical analysis (including analysis of some individual minerals) and electron microprobe analysis of the ore rock, so as to understand characteristics of mineralization. Antimony was found for the first time in the ore. The mean contents of Ag, Cd, Ge, Cu, and Sb are 121.77×10~-6 , 660.99×10~-6 , 62.10×10~-6 , 203.78×10~-6 and 169.87×10~-6 respectively, and these associated elements were evidently formed at the late stage of mineralization. This ore deposit is a multistage hydrothermal deposit.
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