Microfossils from the Chert in the Lower Cambrian Shuijingtuo Formation at Miaohe, Zigui, Hubei Province  

作　　者：Yin Chongyu, Yue Zhao, Gao Linzhi Institute of Geology, CAGS, Beijing and Ding Qixiu Hubei Geological Institute, Hubei Bureau of Geology, Wuhan 

出　　处：《Acta Geologica Sinica(English Edition)》1993年第2期223-233,246-247,共13页地质学报（英文版）

基　　金：This paper is a part of the results of project "Stratotype Section of the Sinian System in China" funded by the China National Foundation of Natural Science. Prof. Xing Yusheng, the leader of the project, also took part in the field work.

摘　　要：This paper reports for the first time on the microfossils discovered in the black cherts of the basal part of the Lower Cambrian Shuijingtuo Formation at Miaohe village, Zigui County, Hubei Province, all of which were observed in thin sections. Nine genera, 9 species and 3 indeterminate species (including a new species) are described. According to these microfossils, the conclusion is made that the microfossil zone may be equivalent to the small shelly fossil assemblage zones 2—3 of the Meishucun stage. They have provided another important line of evidence for the correlation of the Sinian-Cambrian boundary strata with those of the adjacent areas.This paper reports for the first time on the microfossils discovered in the black cherts of the basal part of the Lower Cambrian Shuijingtuo Formation at Miaohe village, Zigui County, Hubei Province, all of which were observed in thin sections. Nine genera, 9 species and 3 indeterminate species (including a new species) are described. According to these microfossils, the conclusion is made that the microfossil zone may be equivalent to the small shelly fossil assemblage zones 2—3 of the Meishucun stage. They have provided another important line of evidence for the correlation of the Sinian-Cambrian boundary strata with those of the adjacent areas.

关 键 词：the Lower Cambrian the Shuijingtuo Formation chert MICROFOSSIL the Sinian-Cambrian Boundary 

分 类 号：P5[天文地球—地质学]