The Xinqiao Cu–S–Fe–Au deposit in the Tongling mineral district, China: synorogenic remobilization of a stratiform sulfide deposit

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• 作者：Xu ; G. ; Zhou ; J.
• 关键词：Stratiform sulfides ; Remobilization ; Structural control ; Xinqiao ; China
• 刊名：Ore Geology Reviews
• 出版年：2001
• 出版时间：April, 2001
• 年：2001
• 卷：18
• 期：1-2
• 页码：77-94
• 全文大小：1.87 M

文摘

The Cu–S–Fe–Au deposit at Xinqiao is located in the Tongling mineral district, Anhui Province, People's Republic of China. It is a large-scale polymetallic deposit with drilling indicated reserves of 0.5 million tonnes of Cu averaging 0.71 % , 75.5 million tonnes of S averaging 29.3 % and 24.9 million tonnes of Fe averaging 46 % , as well as 11.2 tonnes of Au averaging at 4.7 g/tonne plus 248.4 tonnes of Ag averaging at 248.4 g/tonne. There are two major mineralization types in the Xinqiao deposit: one is the economically significant stratiform orebody hosted in the Lower Carboniferous Gaolishan siltstone (C₁g) and overlying Middle Carboniferous Huanglong limestone (C₂h), while the other is the less important skarn-type mineralization restricted to the contact between the Yanshanian diorite (110–168 Ma) and the Lower Permian Qixia marble (P₁q). The ore in the Xinqiao deposit is dominated by massive pyrite with minor amount of chalcopyrite, magnetite, pyrrhotite, galena, sphalerite, quartz and dolomite.