Mineral paragenesis of the Anfangba gold deposit, western Qinling Orogen, China: Implication for coupled dissolution-reprecipitation reactions and the liquid bismuth collector model

Qing Xia,Jiajun Liu,Yongsheng Li,Jeffrey de Fourestier,Dazhao Wang,Degao Zhai,Xiaofei Yu,Xin Lü,Xuefeng Li

Ore Geology Reviews（2021）

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摘要

•The mineral assemblage shows chalcopyrite being replaced by Bi(OH)2+-bearing fluid.•Fractionation of Au–Bi melts from fluids results Au enrichment of the gold deposit.•Fractionation of Au–Bi melts from fluids results Au enrichment of the gold deposit.

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关键词

Anfangba gold deposit,Bi-blebs,Physicochemical condition,Coupled dissolution-reprecipitation reaction,Liquid bismuth collector model,Western Qinling Orogen

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