[1] Chinese Academy of Sciences,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment
[2] China University of Geosciences,Key Laboratory of Biogeology and Environmental Geology of Ministry of Education
[3] Utrecht University,Stratigraphy/Paleontology, Department of Earth Sciences
[4] Utrecht University,Paleomagnetic Laboratory ‘Fort Hoofddijk’, Department of Earth Sciences
[5] Utrecht University,Stratigraphy/Paleontology, Department of Earth Sciences