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本文阐述了在外贝加尔东南出露的含多金属的斑岩铜矿化和斑岩金-铜矿化的主要特点,该矿化产于局部的火山机构中,为热液成因矿化。在许多铀矿化区中出现铜矿化,并伴随热液蚀变岩石的发育。另外在南额尔古纳附近发现早期未知的矿化类型和铀的矿化形成类型共存。指出了含钼和多金属斑岩金-铜矿化的直接标志为发育大面积的黄铁矿化、钾长石化、绿磐岩化和黄铁绢英岩化晕。
This paper describes the main features of the polymetallic porphyry-bearing copper mineralization and porphyry-gold-copper mineralization that are exposed to the southeastern Baikal. The mineralization occurs in the local volcanic formations and is a hydrothermal mineralization. Copper mineralization occurs in many uranium mineralization zones accompanied by hydrothermal altered rock development. In addition, an early unknown mineralization type and a mineralized formation type of uranium coexisted were found near the southern Elgina. It is pointed out that the direct indications for gold-copper mineralization of molybdenum and polymetallic porphyries include the development of large areas of pyrite, potash feldspathization, green-rock formation and pyrites of pyrite.