1. School of Earth Sciences China University of Geosciences Wuhan China
2. Paleomagnetism and Planetary Magnetism Laboratory, School of Geophysics and Geomatics China University of Geosciences Wuhan China
3. Centre for Marine Magnetism, Department of Ocean Science and Engineering Southern University of Science and Technology Shenzhen China
4. National Synchrotron Radiation Research Center Hsinchu Taiwan
5. Department of Earth and Environmental Sciences Syracuse University Syracuse NY USA