A New Chronostratigraphic Subdivision of Cambrian for China  

PENG, S.  

A newly proposed Cambrian Chronostratigraphy for South China with 4 series and 8 stages defined by boundary stratotypes has been accepted by All­China Committee on Stratigraphy at its 3rd National Congress recendy. Standing side by side with the existing North China chronostratigraphy for Cambrian, it will appear on the revised Chronostratigraphic Chart of China, the official chart of the Committee, which will be published in the Stratigraphic Guide of China and Its Explanation (newly edited by the All-China Committee on Stratigraphy).

The chonostratigraphic subdivision of Cambrian in South China, proposed by Peng et al. (1998, 1999, 2000a, b) and Peng (2000), is shown in Figure 1. The stage correlation between South and North (plus East Yunnan) China is shown in Figure 2. The South China chronostratigraphy is suggested by Peng et al., 2000a) as the standard of China.

The lower boundaries of Jinning and Meishucunian (in the narrow sense) Stages are based on Meishucun section in eastern Yunnan, those of the Nangaoan, Duyunian, and Taijiangian stages on sections in eastern Guizhou, and those of the Wangcunian, Youshuian, Waergangian, and Taoyuanian Stages on sections in western Hunan. The lower boundary for most of stages are international tie-point being widely correlated.  

References.  

Peng, S., Zhou, Z. and Lin, T., 1998. Late Middle-Late Upper Cambrian chronostratigraphy of China. p. 20 In Ahlberg, P, Eriksson M., and Olsson, I. (eds), Abstract for the IV Field

Conference of the Cambrian Stage Subdivision Working Group, International Subcommission on Cambrian, Lund University, Lund, Sweden.

Peng, S., Zhou, Z. and Lin, T,1999. A proposal of the Cambrian chronostratigraphic scale in China. Geoscience, 13 (2): 242.

Peng, S., Zhou, Z., Lin, T. and Yuan J., 2000. Cambrian chronostratigraphy research: present and tendency. Journal of Stratigraphy, 24 (1) 8-17 (in Chinese with English abstract).

Peng, S., Yuan, J. and Zhao, Y. 2000. Taijiangian Stage: a new chronostratigraphical Unit for the traditional lower Miiddle Cambrian in South China. Journal of Stratigraphy, 24 (1) 53-54 (in Chinese with English abstract).

Peng, S., 2000. Cambrian of Slope facies. p. 23-38 in Nanjing Institute of Geology and Palaeontology, the Chinese Academy of Sciences (ed.), Stratigraphical Studies in China (1979-1999), China University of Technology and Sciences, Hefei (in Chinese).