*Yanbin Wang¹、Feng Shi²、Jianguo Wen³、Tony Yu¹、Lupei Zhu⁴、Taizi Huang⁵、Kelin Wang⁶ (1.Center for Advanced Radiation Sources, University of Chicago、2.State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan, Hubei, China、3.Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, USA、4.Department of Earth & Atmospheric Sciences, Saint Louis University, St. Louis, MO, USA、5.School of Earth and Ocean Sciences, University of Victoria, Victoria, B.C., Canada 、6.Pacific Geoscience Centre, Geological Survey of Canada, Sidney, B.C., Canada)