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本文通过对巴西典型金-矽卡岩矿床的解剖，探讨了成矿流体来源、组成演化，以及流体和岩石之间的质量转移程度和机理的信息，揭示金成矿过程中成矿流体演化的规律。研究认为，成矿作用两阶段的成矿流体分别为变质流体和大气降水，它们在开放系统中水岩质量比分别为0．02，2．11，并且获得矽卡岩可能是由围岩转向岩体方向的变质流体交代形成的认识。
Based on the anatomy of the typical gold-skarn deposits in Brazil, this paper discusses the origin and evolution of ore-forming fluids, the extent and mechanism of mass transfer between fluids and rocks, and reveals the evolution of ore-forming fluids during gold mineralization . The study suggests that the metallogenic fluids in the two stages of metallogenesis are metamorphic fluid and atmospheric precipitation, respectively. The mass ratios of water to rock in the open system are 0.02 and 2.11, respectively, and the skarn obtained may be turned from the surrounding rock Metamorphic fluid in the direction of rock body to explain the formation of the understanding.