1. State Key Laboratory of Loess and Quaternary Geology, Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
2. Department of Environmental and Resource Engineering, Technical University of Denmark, Risø Campus, Roskilde 4000, Denmark
3. Xi’an Institute for Innovative Earth Environment Research, Xi’an 710061, China
4. CAS Center of Excellence in Quaternary Science and Global Change, Xi’an 710061, China
5. Open Studio for Oceanic-Continental Climate and Environment Changes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266061, China