The Beiya ore district, as a part of the Cenozoic alkali-rich porphyry belt in the eastern Tibet-western Yunnan-southeastern Yunnan area, possesses three types of alkaline porphyries formed at three stages, and has experienced repeated mineralization.

• 摘要北衙金矿区作为藏东－川滇西－滇东南喜马拉雅期富碱斑岩带的一部分，发育有3期成分不同的碱性斑岩，并经历了多期成矿作用。