Abstract

This paper discusses currently interesting aspects of metallogeny at the Pacific volcanic belts (PVBs); these consist of complex volcanogenic–plutonic features related to the evolution of the marginal-sea lithosphere, which exhibits a remarkable mineralization peculiarity. We show that as time has passed, the ideas of a metallogenetic homogeneity of the PVBs received a new substantiation from the standpoint of plate tectonics. We show the metallogenetic value of the Ag/Au ratio in ore deposits at the PVBs. We consider the relationships between porphyritic epithermal and pyritaceous complex mineralizing systems, as well as regenerated and rejuvenated epithermal deposits. The global metallogenetic homogeneity of the Pacific ore belt suggests a wide occurrence of analogues of the American volcanogenic deposits in its Asian half, including the Russian Northeast. The bulk of the Okhotsk–Chukchi Volcanic Belt (OChVB), namely, the Uda–Murgali island arc belt, equally as the Uyandina–Yasachnaya and Oloi belts, are similar in geological structure not only to the Japanese green tuff province, but also to the other Pacific volcanic belts of the island arc type; hence, they are very likely to contain the entire diversity of deposits that belong to the complex pyritaceous ore–formation type.

中文翻译：

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论太平洋火山带的成矿作用

摘要

本文讨论了太平洋火山带（PVBs）目前成矿作用的有趣方面。这些由与边缘海岩石圈演化有关的复杂的火山成岩-火山成岩特征组成，具有显着的矿化特征。我们表明，随着时间的流逝，PVB的成矿同质性思想从板块构造学的角度得到了新的证实。我们显示了PVBs矿床中Ag / Au比的成矿价值。我们考虑了斑状超热和含硫的复杂矿化系统之间的关系，以及再生和活化的超热矿床。太平洋矿带的全球成矿同质性表明，在亚洲的一半地区广泛存在着美国火山成矿的类似物，包括俄罗斯东北。鄂霍次克—楚科奇火山带（OChVB）的大部分，即乌达—穆加里岛弧形带，与Uyandina—Yasachnaya和Oloi带一样，其地质结构不仅与日本的绿色凝灰岩省相似，而且与岛状弧形的其他太平洋火山带；因此，它们很可能包含属于复杂的含铁矿石-成矿类型的全部矿床。