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对长坑金银矿床的化学组成、同位素特征、流体性质、成矿物理化学条件和机理的系统研究表明，与矿化最密切的硅质岩应主要为热液交代成因；金、银矿体的稀土和微量元素特征既有共性又有异性；矿床的硫、铅、碳、锶同位素组成特征反映它们均为壳源物质或沉积成因；成矿流体相对富Ｃａ、Ｋ，主要来自演化了的加热大气水或建造水；矿床形成于中低温的热液条件，矿化机制包括热液沸腾、流体混合与水岩反应。总之，长坑矿床为微细浸染型金矿与碳酸盐岩交代型银矿构成的新颖矿床组合，金、银矿体是统一的热液作用在不同的成矿环境和控矿条件下的产物，它们与区域内的铅锌（银）矿床应属于一个成矿系列。
The systematic study on the chemical composition, isotopic characteristics, fluid properties, physicochemical conditions and mechanism of the Changkeng gold-silver deposit shows that the chert with the most mineralization should be hydrothermal metasomatism. The gold and silver ore bodies The characteristics of REE and trace elements are both common and anisotropic. The characteristics of sulfur, lead, carbon and strontium isotopic composition of the deposit reflect that they are all crustal origin or sedimentary origin. The relatively rich Ca and K in ore-forming fluid are mainly caused by evolutionary heating Atmospheric water or building water. The deposits formed in the hydrothermal conditions at moderate and low temperatures. Mineralization mechanisms include hydrothermal boiling, fluid mixing and water-rock reaction. In summary, the Chang-keng deposit is a novel deposit assemblage of finely disseminated gold and carbonate-hosted metamorphic silver. The gold and silver ore bodies are the products of uniform hydrothermal activity under different metallogenic conditions and ore-controlling conditions , They and the area of lead-zinc (silver) deposits should belong to a metallogenic series.