Xiaojing Wang1,2, Li Li1,2,3*, Yijun Ren1, Peng Cao1,3, Aimei Zhu1,2, Jihua Liu1,2,3 and Xuefa Shi1,2,3 1Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China 2Key Laboratory of Deep Sea Mineral Resources Development, Qingdao, Shandong, China 3Laboratory for Marine Geology, Laoshan Laboratory, Qingdao, China Thirteen Short sediment cores (30-50 cm) were collected from Bohai Sea, Yellow Sea and Changjiang Estuary in...