BIOSTRATIGRAPHIC CONSTRAINT ON TONIAN SUCCESSIONS IN EASTERN NORTH CHINA BLOCK
TANG, Qing1, PANG, Ke2, CHEN, Lei3, WAN, Bin4, XIAO, Shuhai1, ZHOU, Chuanming5, YUAN, Xunlai6 and HUA, Hong7, (1)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, (2)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061; Chinese Academy of Sciences, Nanjing Institute of Geology and Paleontology, Nanjing, 210008, China, (3)College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China, (4)Chinese Academy of Sciences, Nanjing Institute of Geology and Paleontology, Nanjing, 210008, China, (5)Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China, (6)State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China, (7)Northwest University Xi'an, Department of Geology, Xi'an 710069, China, Xi'an, 710069, China, qingt@vt.edu