Open AccessFeature PaperArticle by Zanzan Zhang 1,2,3, Xiaoyan Jiang 1,*, Jia Guo 4 and Kenan Jiang 1 1 State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China 2 School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China 3 Geological Survey of Anhui Province (Anhui Institute of Geological Sciences), Hefei 230001, China 4 College of Earth Sciences, Chengdu University of...