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热液体系中金的特征是作为温度250°时pH值和氧逸度的一种函数来评价。在稳定的黄铁矿和泥质蚀变组合情况下,金以二硫化物络合物形式迁移。在体系中,一定量的砷—含硫砷络合物体也是重要的。在这种条件下,氧化作用液体的稀释和冷却会造成金沉积。在特定的低品位低温热液矿床中吸附和共同沉淀可能是金的成矿机制。迁移溶液中具低浓度的金并产生沉积,结合金的二硫化物络合物具有一定的溶解度,表明含金热液极少是饱和的,共同沉淀也许是重要的初始成矿机制过程。在热溶液中的硫化物重结晶会释放出金,而达到稳定
The characteristics of gold in hydrothermal systems are evaluated as a function of pH and oxygen fugacity at a temperature of 250 ° C. In the case of stable pyrite and muddy alteration combinations, gold migrates as a disulfide complex. In the system, a certain amount of arsenic-arsenic complex is also important. Under these conditions, dilution and cooling of the oxidizing liquid can cause gold deposition. Adsorption and co-precipitation in a particular low grade cryogenic hydrothermal deposit may be the gold mineralization mechanism. Migration of solution with low concentration of gold and deposition, gold disulfide complex with a certain degree of solubility, indicating that the gold is rarely saturated with hydrothermal solution, co-precipitation may be important initial mineralization process. Recrystallization of the sulfide in the hot solution releases gold to achieve stabilization