Microfossils from the siltstones and muddy slates: Constraint on the age of the Taowan Group in the Northern Qinling Orogenic Belt, Central China

被引：13

作者：

Wang ZongQi ^{[1
]}

Gao LianDa ^{[1
]}

Wang Tao ^{[1
]}

Jiang ChunFa ^{[1
]}

机构：

[1] Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China

来源：

SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 2008年 / 51卷 / 02期

关键词：

Taowan Group; microfossil; Early Ordovician; Northern Qinling Orogenic Belt;

D O I：

10.1007/s11430-007-0140-7

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The age of the Taowan Group is still a hot topic in the Northern Qinling Orogenic Belt, because of limited fossil evidence from these strata and different ideals on the Cambrian fossils of the conglomerate beds and limestone blocks. Early Ordovician acritarchs, chitinozoa and scolecodonts occur in the siltstone and muddy slate beds of the Guoling, Sanchakou, Fengmaimiao and Goushenmiao Formations of the Taowan Group, indicating the age of the Taowan Group should be the Ordovician. These fossil assemblages consist of 7 genera and 13 species of acritarchs, 7 genera and 9 species of chitinozoa, and 2 genera and 2 species of scolecodonts.

引用

页码：172 / 180

页数：9