1 Joint International Research Laboratory of Environmental and Social Archaeology, Shandong University, Qingdao, 266237, China; Institute of Cultural Heritage, Shandong University, Qingdao, 266237, China. Electronic address: ymzh@sdu.edu.cn.
2 Joint International Research Laboratory of Environmental and Social Archaeology, Shandong University, Qingdao, 266237, China; Institute of Cultural Heritage, Shandong University, Qingdao, 266237, China; Henan Provincial Institute of Cultural Relics and Archaeology, Zhengzhou, 450000, China. Electronic address: lizhanyang2621@sina.com.