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在长坑矿床的金矿化和银矿化过程中，质量迁移计算显示SiO2、Al2O3、FeO、Ni、Zn、As、Ba均为带人组分，而CaO、MgO、Na2O、Sc、V、Co、Bi、Sr、REE则为带出物质；Fe2O3、MnO、Cu、Pb的得失性质因矿化类型而异，轻、重稀土在金矿化中发生分离，但在银矿石形成过程中却表现出比较一致的行为。虽然金、银之间具有矿化分离的特点，但在地球化学富集上却存在共生关系，表明金、银矿化是相同热液成矿事件在不同阶段和条件下的产物。找矿时应注意硅化蚀变和As、Pb、Zn的异常以及金银共生矿体的存在。
In the process of gold mineralization and silver mineralization in Chang-keng ore deposit, mass migration calculation shows that SiO2, Al2O3, FeO, Ni, Zn, As and Ba are all in-band components while CaO, MgO, Na2O, Sc, Co, Bi, Sr and REE are the same as the exiting materials. The properties of the gain and loss of Fe2O3, MnO, Cu and Pb vary with mineralization types. Light and heavy rare earths are separated during the gold mineralization. However, during the formation of silver ores, Show more consistent behavior. Although gold and silver are characterized by mineralization and separation, there is a symbiotic relationship on geochemical enrichment, indicating that gold and silver mineralization are the products of the same hydrothermal mineralization event under different stages and conditions. Mineralization should pay attention to silicification alteration and As, Pb, Zn anomalies and the existence of gold and silver symbiotic ore body.