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The Beiya in western Yunnan, China, is a world-class porphyry–skarn polymetallic Au orefield that is currently being explored and constitutes the topic of this paper. The Beiya orefield is a composite mineral system with a distinct zoning surrounding the causative intrusions. For instance, the Wandongshan, the largest deposit in the Beiya orefield, exhibits a zoning with 1) porphyry Au–Fe (Cu) orebodies...
The Beiya gold-polymetallic orefield, with gold reserves of 305t, is one of the most representative porphyry-skarn orefields in the Jinshajiang-Ailaoshan Cu-Au ore belt within the Sanjiang region of southwest China. The orefield contains seven deposits: the Wandongshan, Hongnitang, Dashadi, Bijiashan, Weiganpo, Matouwan, and Bailiancun deposits. In this paper we report on the geochemistry and geochronology...
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