铂族元素在岩浆期后阶段,特别是热液阶段的活动性问题,早在本世纪二十年代就有人提出过,但到六十年代才受到较多的重视。这主要表现在两方面:一个是通过对世界上公认的岩浆成因矿床的深入研究,提出了有关热液活动的证据,另方面是发现了一 The activity of platinum group elements in the post-magmatic stage, especially the hydrothermal stage, was raised as early as the 1920s, but it was not paid much attention until the 1960s. This is mainly manifested in two aspects: one is through the in-depth study of the world’s recognized magmatic deposits, put forward the evidence on the hydrothermal activity, the other is the discovery of a