前言在弧后区扩张过程中,或者作为扩张的一种结果,可形成多种类型的火山和次火山成因矿床,其中包括火山成因的金银矿床。这些矿床与卡林型金矿的热液活动几乎是同期的,有些是同成因的。在板块构造-成岩旋回的早期阶段,在外侧近处或毗邻地区形成了岛弧火山成因金银矿床;它们在成因上和外观上与弧后火山矿床有许多共同点。 Preface Various types of volcanic and sub-volcanic deposits, including volcanic gold and silver deposits, can form during post-arc back-arc expansion or as a result of expansion. The hydrothermal activities of these deposits and Carlin-type gold deposits are almost contemporaneous and some are the same. In the early stages of tectonic-diagenetic cycles of plate tectonics, island arc volcanogenic gold-silver deposits formed near or adjacent to the outer sides; they have many similarities, both genetically and externally, to post-arc volcanic deposits.