QIAN Xu-lin, DING Shao-lin, TIANG Kai, CUI Bang-quan, FENG Guang-hua

(Yunnan Hualian Zinc and Indium Co. LTD, Maguan 663701, China)

Abstract: Dulong Sn-Zn polymetallic deposit is a supper large scale open-pit mine in Maguan County, Yunnan Province, China, and its mining capacity is over 2.1 million tons every year. Being complex mineral assemblages with various ore-forming elements, and uniform ore-bodies with different geological occurrences, it is hard for mining in Dulong open-pit mine. During the long-term mining, it has been suggested that different mining methods can be carried on the different types of ore-body in a working bench of Dulong mine. Multiple combination of mining method will not only reduce the waste of resources, but also increase the economic benefit of enterprise, and it will provide important reference for similar open-pit mine.

Keywords: Complex polymetallic orebody; Orebody type; Multiple combination mining method; Comprehensive utilization; Dulong Sn-Zn open-pit mine

E-mail: 326763424@qq.com

ACTA MINERALOGICA SINICA Vol. 36, No. 4, 2016, Page 540-543