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借助于计算机研究了在25—300℃时不同值的氢挥发度、硫的总浓度和pH值条件下Au—Cl—S—Na—H_2O体系的平衡。所获得的资料用来分析含金矿床中某些矿物共生组合的热力学性质。 不了解金在热液作用中搬运和富集的物理一化学条件,要解释该金属的地球化学特点是不可能的。许多研究工作者在研究这个问题中曾经作出了重大的贡献。 在B.Moaceel:iEo.B.H.Fonqapou和A.Ci,iJIOpOS的著作[1—3]中,提供了形成各种成因类型金矿床的含金热液中的盐和气体成分特征方面的最完全的资料。在实验工作和热力学计算述评中,援引了1972年前完成并涉及金的化合物,在氯化物溶液和含硫溶液中,形成络合物和进行水解的研究成果[4—7],以此做为述评的基础。此后进行了于上述成分溶液中在加温条件下金的络合物形成作用方面的研究[8—10]。在这些著作中,有关金在溶液中的状态的研究是片断的,因而无法用其成果来构拟元素在多组分体系一热液中的行为。在P.M.Fappe~c.A..na9OB和K.FlaBuora[11、12]的著作中,根据那时所掌握的资料进行了25℃时在含氯和含硫的水溶液中金的状态的综合研究。H.B.BHop等人借助于电子计算机进行了25—400℃时Au—S—NaCl一SiO2—H_2O体系中平衡的定量计算的第一次尝试[13]。在上面所指出的著作中,遗憾的是,没?
The equilibrium of Au-Cl-S-Na-H 2 O system under different hydrogen volatilities, total sulfur concentration and pH value was studied by computer at 25-300 ℃. The data obtained are used to analyze the thermodynamic properties of some of the mineral assemblages in the gold-bearing deposits. It is impossible to explain the geochemical characteristics of the metal without understanding the physical-chemical conditions that gold is transported and enriched in the hydrothermal interaction. Many researchers have made a significant contribution to the study of this issue. In the writings of B. Maceace: i.E.BH Fonqapou and A. Ci, iJIOpOS [1-3], the most complete description of the salt and gas composition characteristics of the gold-bearing hydrothermal fluids forming various types of gold deposits data. In the review of experimental work and thermodynamic calculations, the results of studies on the formation and hydrolysis of complexes of gold, compounds of gold, and chlorides in 1972 and 1987 [4-7] were cited As the basis for the review. Since then, studies have been made on the complex formation of gold under heating conditions in the above-mentioned component solution [8-10]. In these works, the study of the state of gold in solution is fragmented and its results can not be used to model the behavior of elements in a multicomponent system-hydrothermal solution. In the writings of P.M. Fappe ~ c. A..na9OB and K.FlaBuora [11,12], a comprehensive study of the state of gold in chlorine and sulfur-containing aqueous solutions at 25 ° C was carried out on the basis of available data at that time. H.B.Bop et al. Conducted a first attempt to quantify the equilibrium in the Au-S-NaCl-SiO2-H20 system at 25-400 ° C by means of a computer [13]. In the books pointed out above, unfortunately, no?