The Machangqing copper-molybdenum deposits, Yunnan, China — an example of Himalayan porphyry-hosted Cu-Mo mineralization

@article{Peng1998TheMC,
  title={The Machangqing copper-molybdenum deposits, Yunnan, China — an example of Himalayan porphyry-hosted Cu-Mo mineralization},
  author={Zhenan Peng and Makoto Watanabe and Kenichi Hoshino and Satoshi Sueoka and Tokuya Yano and Hirotsugu Nishido},
  journal={Mineralogy and Petrology},
  year={1998},
  volume={63},
  pages={95-117}
}
SummaryThe Machangqing copper-molybdenum deposits occur in the Shanjian fold belt, Yunnan Province, China. Two types of ores are distinguished: (1) Cu-Mo quartz veinlets in magnetite-series granite porphyry; and (2) Cu-Mo skarns occurring at the contact between the Ordovician sedimentary sequence and the granite porphyry. With decreasing temperature and $$a_{K^ + } /a_{H^ + } $$ of hydrothermal fluids initially in equilibrium with K-feldspar, the following alteration patterns developed within… CONTINUE READING