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本文详细研究东沟坝多金属矿床的硫同位素特征，并根据同位素资料评估硫在成矿溶液中的最短停留时间和成矿机理。根据硫化物和硫酸盐在化学及同位素交换反应的过程中同样都包含有分子结构中的硫键断开和硫原子的交换，提出了化学平衡是同位素平衡的先决条件。指出在不少成矿温度低于３５０℃的热液矿床中，共沉淀的硫化物矿物和硫酸盐矿物之间的硫同位素时常没有达到平衡
In this paper, the sulfur isotopic characteristics of Donggouba polymetallic deposit are studied in detail, and the shortest residence time and metallogenic mechanism of sulfur in ore-forming solution are evaluated based on isotopic data. According to the same chemical and isotopic exchange reactions, sulfide and sulfate also contain the breakage of sulfur bonds in the molecular structure and the exchange of sulfur atoms. It is proposed that the chemical equilibrium is a prerequisite for isotope equilibrium. It is pointed out that sulfur isotopes between coprecipitated sulphide minerals and sulphate minerals often do not reach equilibrium in many hydrothermal deposits with mineralization temperatures below 350 ° C