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基于水-岩δD-δ18O同位素交换体系理论模型的建立和计算，对金堆城超大型斑岩钼矿四个不同成矿期中成矿流体的演化和来源进行了研究，发现在成矿前期和早期，成矿流体为岩浆水与围岩在较低水／岩比值（0．1W／R＞0．001）和中、高温（t=250～500℃）条件下反应后的残余流体，而主成矿期和成矿晚期的成矿流作为大气降水在相对较高水／岩比值（0．5＞W／R0．1）和中、低温（t＝150～310℃）条件下与围岩反应后的残留流体。大气降水在金堆城钼矿成矿过程中起了重要作用。在主成矿期水／岩比值达到最高。
Based on the establishment and calculation of the theoretical model of δD-δ18O isotopic exchange system of water-rock, the evolution and origin of ore-forming fluids in four different metallogenic stages of the Jinduicheng ultra-large porphyry molybdenum deposit are studied. It is found that in the early stage of metallogenesis and In the early stage, the ore-forming fluid was a residual fluid after the reaction between magmatic water and surrounding rock under the condition of lower water / rock ratio (0.1W / R> 0.001) and medium and high temperature (t = 250-500 ℃) The main mineralization and the late metallogenetic mineralization flow as a function of atmospheric precipitation at a relatively high water / rock ratio (0.5> W / R0.1) and at moderate and low temperatures (t = 150-310 ° C) Residual fluid after rock reaction. Precipitation in the Jinduicheng molybdenum mineralization process played an important role. The water / rock ratio reached the highest during the main mineralization.