碳同位素统计表明，深源岩浆碳具有较均一的同位素组成，而沉积岩和变质岩的联同位素组成则变化较大，不同来源的联的同位素组成具重叠特征。在金矿床研究中，简单的碳同位素的对比使碳同位素组成具有多解性。碳同位素的物源追踪应建立在同位素体系的演化以及具体成矿环境分析的基础上。 The carbon isotope statistics show that the deep-sourced magmatic carbon has a relatively homogeneous isotopic composition while the syngenetic composition of sedimentary rocks and metamorphic rocks varies greatly. The isotopic compositions of different sources have overlapping features. In the study of gold deposits, simple carbon isotope comparisons make the carbon isotopic composition more pliable. The source tracing of carbon isotopes should be based on the evolution of the isotopic system and the analysis of the specific metallogenic environment.