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This article discusses the metallogenetic mechanism of Lianhuashan porphyry tungsten deposit on the basis of the studies of inclusion, stable isotope, mineralogy and trace elements.The Lianhuashan porphyry tungsten deposit originated in the hypabyssal to near surface condition. The temperature of alteration and mineralization of this deposit ranges from 150° to 650℃, indicating that the alteration and mineralization have experienced from the latemagmatic stage to the post-magmatic mesothermal stage.The fO_2, fS_2 and pH values of metallogenetic liquid of Lianhuashan porphyry tungsten deposit are logfO_2=—26——42, logfS_2=—17——7 and pH=4.5—7.5. The ferberite mineralization was formed when logfO_2=—26——31, pH=4.5—5, while the scheelite and sulfides mineralization was formed when logfO_2=—38——42, pH=7—7.5.
This article discusses the metallogenetic mechanism of Lianhuashan porphyry tungsten deposit on the basis of the studies of inclusion, stable isotope, mineralogy and trace elements. The Lianhuashan porphyry tungsten deposit originated in the hypabyssal to near surface condition. The temperature of alteration and mineralization of this indicating that the alteration and mineralization have experienced from the latemagmatic stage to the post-magmatic mesothermal stage. fO_2, fS_2 and pH values of metallogenetic liquid of Lianhuashan porphyry tungsten deposit are logfO_2 = -26- -42, logfS_2 = -17--7 and pH = 4.5-7.5. The ferberite mineralization was formed when logfO_2 = -26--31, pH = 4.5-5, while the scheelite and sulfides mineralization was formed when logfO_2 = -38 - 42, pH = 7-7.5.