摘要
本文通过对我国震旦系-寒武系边界层中厚度较大、化石丰富、生物演变序列清楚的川西和滇东地区遗迹化石的研究,并比较其异同点,从而阐明遗迹化石对寒武系底界的划分及恢复古环境方面的意义。
ln this paper,trace fossils collected from the Sinian-Cambrian boundary beds in Western Sichuan and Eastern Yunnan area are studied. Where the boundary beds with abundant fossils are thick and have a clear sequence of organism evolution. The assemblages of trace fossils can be used for the delimitation at the bottom boundary of Cambrian system and help reconstruction of the palaeoenvironment.
出处
《矿物岩石》
CAS
CSCD
1990年第4期22-28,共7页
Mineralogy and Petrology
基金
国家自然科学基金资助项目
关键词
遗迹化石
边界层
震旦纪
寒武纪
trace fossils
Sinian—Cambrian boundary
Western Sichuan
Eastern Yunnan
