8U. S. Geological Survey. Mineral commodity summaries 2014 [M]. U.S. Geological Survey, 2014:107.
9MacDonald M, Adair B, Bredshaw D, et al. Learnings From Five Years of On-Site Mla at Kennecott Utah Copper Corporation: (Myth Busters Through Quantitative Evidence…)[C]//Proceedings of the 10th International Congress for Applied Mineralogy ( ICAM ). Springer Berlin Heidelberg, 2012: 419-426.
