Geochronological and Geochemical Constraints on the Formation of the Giant Zaozigou Au-Sb Deposit, West Qinling, China oleh Hao-Cheng Yu, Chang-An Guo, Kun-Feng Qiu, Duncan McIntire, Gui-Peng Jiang, Zong-Yang Gou, Jian-Zhen Geng, Yao Pang, Rui Zhu, Ning-Bo Li