地质学报2012，Vol.86Issue(6)：849-866,18.
华南峡东地区埃迪卡拉(震旦)纪年代地层划分初探
Discussion on the Chronostratigraphic Subdivision of the Ediacaran ( Sinian)in the Yangtze Gorges Area, South China
摘要
Abstract
The Ediacaran stratum in the Yangtze Gorges area, South China is well-known as it represents the most complete and continuous succession with bundant micro- and macrofossils in China, and is considered as one of the most ideal areas for resolving problem of the chronostratigraphic subdivision and establishing the series and stage boundary-stratotypes of the Ediacaran. According to several accurate isotopic ages, great progresses of the chemostratigraphy and biostratigraphy in recent years, we suggest that the Ediacaran should be subdivided as two series and five stages based on biostratigraphic data and 813 C excursion. The lower series named as the Xiadongian which consists of two stages (separately as Jiulongwanian Stage and Chenjiayuanzian Stage), upper series named as Yangtzean which consists of three stages (separately as Diaoyapoan stage, Fourth Stage and Fifth Stage). According to the bio-stratigraphy and characteristics of stable carbon isotope stratigraphy, a preliminary correlation of the Ediacaran succession between the Yangtze Gorges and other typical areas has been discussed. However, the current Ediacaran chronostratigraphic subdivision is a preliminary scheme, which needs more work in the future.关键词
华南地区/峡东地区/埃迪卡拉纪/震旦纪/年代地层Key words
South China/ Eastern Yangtze Gorges area/ Ediacaran, Sinian/ chronostratigraphy引用本文复制引用
刘鹏举,尹崇玉,陈寿铭,李猛,高林志,唐烽..华南峡东地区埃迪卡拉(震旦)纪年代地层划分初探[J].地质学报,2012,86(6):849-866,18.基金项目
本文为国家自然基金项目(编号41172035)和中国地质调查局工作项目(编号1212011120140,1212010911071)联合资助的成果. （编号41172035）
