An Early Cretaceous gold metallogenesis in the Wuhe area, Eastern Anhui province: Constraints from geology, fluid inclusion, H-O isotope and geochronology on the Hekou gold deposit
Ore Geology Reviews(2021)
摘要
•Detailed observations combined CL imaging reveal three generations quartz in ore stage.•The key factor for the precipitation of Au was H2O-CO2-NaCl fluid immiscibility.•H-O isotopic data show ore fluids were mainly derived from magmatic fluids.•The Rb-Sr isochron age of gold-bearing pyrites is 128.1 ± 2.7 Ma.•The Hekou gold deposit shares similar mineralization feature with Jiaodong gold ore cluster.
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关键词
SEM-CL,Fluid immiscibility,H-O isotope,Pyrite Rb-Sr dating,Hekou gold deposit,North China Craton
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