Yanhe Cu deposit, Ludian Co., Zhaotong Prefecture, Yunnan Province, China

Hydrothermal Cu deposit. The individual ore bodies are hosted along the Ludian syncline in the contact zone between Emeishan flood basalts and overlying Upper Permian coal-bearing clastic rocks of the Xuanwei formation. The area extends from Yanhe to northeast of Ludian and includes occurrences at Dadi, Laoyingyan, Longjinggou, and Sujiaqing. There also are numerous ancient mines in this area.

Ref.:
- Bingquan Zhu, Xiangyang Chang, Yaoguo He, and Zhengwei Zhang (2002): Discovery of Yanhe Copper Deposit in the Yunnan-Guizhou Border Area and a New Train of Thought for Copper Prospecting in the Large Igneous Province of Emeishan Flood Basalts. Advances in Earth Science 17(6), 912-917 (in Chinese with English abstract).

- Bingquan Zhu, Yaogou Hu, Zhengwei Zhang, and Xiangyang Chang (2003): Discovery of the copper deposits with features of the Keweenawan type in the border area of Yunnan and Guizhou provinces. Science in China, Series D (Earth Sciences), 46, 60-72.

- Bingquan Zhu, Tongmo Dai, Yaoguo Hu, Zhengwei Zhang, Guanghao Chen, Jianhua Peng, Xianglin Tu, Dehan Liu, and Xiangyang Chang (2005): 40Ar/39Ar and U-Th-Pb Dating for Native Copper Mineralizations of Two Stages from the Emeishan Flood Basalts in Northeastern Yunnan Province, China. Geochimica 34(3), 235-247 (in Chinese with English abstract).

- Zhu Bingquan, Hu Yaoguo, Zhang Zhengwei, Cui Xuejun, Dai Tongmo, Chen Guanghao, Peng Jianhua, Sun Yongge, Liu Dehan, and Chang Xiangyang (2007): Geochemistry and geochronology of native copper mineralization related to the Emeishan flood basalts, Yunnan Province, China. Ore Geology Reviews 32, 366-380.