【摘要】 文章叙述了用Au－Ag合金测定Au和Ag溶解度及讨论Au的热液行为的意义和方法。实验结果指出：在300℃，fo2在10－35～10－14间，∑Cl－＝3．0mol／kg和有含银矿物存在时，Au－Ag系列与含水氯化物热液反应，Au－Ag系列中纯AU的溶解度最高，中间组分的溶解度随XAu的增加而升高，而银的溶解度随XAg的变化不明显，但随∑Cl－浓度的增加而升高，在含银相存在时，金和银总是趋向于形成富金的Au－Ag系列。更多还原

【Abstract】 This paper deals with the method to measure the relative solubilities of Au and Ag by using Au-Ag alloy and discuss the behavior of Au in hydrothermal solutions. Experimental results show that at 300℃ and fo1 = 10 -15 ~ 10-14, ∑Cl-=3. 0mol/kg and that when the Au-Ag series reacts with aqueous chloride hydrothermal solutions in the presence of Ag-bearing minerals, the solubili-ty of pure Au in the Au-Ag series is highest, that of the intermediate cmoponents tends to increase with increasing XAu，and that of Ag displays unremarkable variation with XAg.，but tends to in-crease with increasing concentration of ∑C－. In the presence of Ag-bearing phase, the general tendency of Au and Ag is to form the Au-rich Au-Ag series.更多还原