U-Pb zircon age for the Nanhua-Sinian boundary
China Commission on Stratigraphy approved a tripartite classification of the Neoproterozoic in 2001[1,2]. Top of the new system was assigned to the base of the Doushantuo Formation, the glacier-related strata were separated from the pro-Sinian System and named the Nanhua System[1―3], in which Nanhua is after the term of "the Nanhua great glaciations" proposed by Prof. Liu[3,4]. In March 2004, IUGS approved the Ediacaran System and the initial GSSP of the Ediacaran System was assigned to the base of a texturally and chemically distinctive carbonate layer that overlies glaciogenic rocks in an exposure along Enorama Creek in the south Australia[5]. Thus, the Nanhua-Sinian boundary corresponds with the Cryogenian-Ediacaran boundary and the Ediacaran is equivalent to the Sinian in China.
作 者： Chu Xuelei Wolfgang Todt ZHANG Qirui CHEN Fukun HUANG Jing 作者单位： Chu Xuelei,ZHANG Qirui,CHEN Fukun,HUANG Jing(Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China)Wolfgang Todt(Max-Planck-Institut für Chemie, Mainz 55020, Germany)
刊 名： 科学通报（英文版） SCI 英文刊名： CHINESE SCIENCE BULLETIN 年，卷(期)： 2005 50(7) 分类号： 关键词：