摘要
本文报道在华北地台南缘豫西鲁山下汤九女洞剖面洛峪群洛峪口组下部灰绿色粉砂质页岩中发现可靠的宏观碳质印膜化石,包括Chuaria,Shouhsienia,Tawuia,Ovidiscina等属。通过同国内外已发现的前寒武纪宏观藻类资料广泛对比,并结合其他化石资料的综合分析,对华北地台南缘晚前寒武纪地层对比及新元古代地层格架进行探讨。
The area from the Zhongtiao Mountains to Lushan Mountain on the northern slope of the Eastern Qinling Range is geologically considered to be a transitional region between the Qinling fold belt and the North China platform and a part of the southern margin of the North China platform. There late Precambrian strata are most completely succeeded and may be divided in ascending order into the Xiong'er Group, Ruyang Group, Luoyu Group and Sinian System. This paper first reports macroscopic algal fossils from the Luoyukou Formation in Lushan County, western Henan, including Shouhsienia , Tawuia, Chuaria and Ovidiscina genera. Based on an analysis of Neoproterozoic macroscopic algal fossils in different regions of China coupled with the worldwide correlation, the stratigraphical correlation of the upper Precambrian and Neoproterozoic stratigraphic framework at the southern margin of the North China platform are discussed.
出处
《地质学报》
EI
CAS
CSCD
北大核心
2000年第4期339-343,共5页
Acta Geologica Sinica
基金
国家自然科学基金(编号49472084
49672093)
地质矿产部地质行业科学技术发展基金(编号HY979819)
关键词
豫西
洛峪群
洛峪口组
宏观藻类
寒武纪地层
western Henan, Luoyu Group, Luoyukou Formation, Macroscopic algal fossils
