The Lancangjiang metallogenic belt in western Yunnan is an important magmatic, metamorphic and tectonic mobile zone of Southwestern China, whose geotectonic location is very unique.

滇西澜沧江成矿带是我国西南一条重要的岩浆—变质—构造活动带，大地构造位置极为独特。

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SW Margin of the Yangtze Block, belonged to South part of the South China Plate, spans two geotectonic units of Yangtze Landmass and South China active zone.

扬子地块西南缘，属华南板块南部，跨扬子陆块和南华活动带两个大地构造单元。

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