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Ediacaran integrative stratigraphy and timescale of China
Zhou, Chuanming (周传明)1,2; Yuan, Xunlai (袁训来)2,3; Xiao, Shuhai4; Chen, Zhe (陈哲)2,3; Hua, Hong5
2019
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume62Issue:1Pages:7-24
Abstract

Ediacaran successions occur widely in various depositional facies in South China and yield a series of fossil Lagerstatten, providing a complete fossil record for the evolution of marine ecosystems after the terminal Cryogenian global glaciation. Carbonate-dominated Ediacaran successions in shallow water facies in South China record a nearly complete C-13 profile that may reflect variations of marine carbon isotopic composition during the Ediacaran Period. The Ediacaran fossils and C-13 profiles from South China permit stratigraphic correlation and subdivision of the Ediacaran strata. Based on biostratigraphic, chemostratigraphic, and geochronometric data from the Ediacaran successions in South China, we propose that the Ediacaran System in China can be subdivided into two series, with three stages in each series. The lower series is characterized by acanthomorphic acritarchs and the upper series by Ediacara-type macrofossils, and the two series are separated by the declining limb of a pronounced C-13 negative excursion (EN3) in the upper Doushantuo Formation. The basal boundary of Stage 1 is the same as the basal boundary of Ediacaran System, which has been defined at the base of the cap carbonate unit. Stage 2 represents the first radiation of Ediacaran microscopic organisms, with C-13 feature representing by positive values (EP1). The base of the Stage 2 is placed at the first appearance level of a spiny acritarch species. Stage 3 is characterized by the occurrence of more diverse acritarchs and C-13 feature EP2, with its basal boundary defined by a C-13 negative excursion (EN2) occurring in the middle Doushantuo Formation. The basal boundary of Stage 4 is the same as the upper series. Stage 5 is marked by the occurrence of macrfossils of Miaohe biota, and its lower boundary can be placed at the level where C-13 values transition from positive to negative in MNE, or the first appearance level of macrofossils of the Miaohe biota. Stage 6 is characterized by the occurrences of Ediacara-type Shibantan biota and Gaojiashan biota, with its lower boundary defined by the first appearance level of Conotubus hemiannulatus. The formal establishment of the aforementioned series and stages requires further and more detailed integrative stratigraphic study on the Ediacaran successions in China. Some of the Ediacaran successions in South China have great potential to become global standards in Ediacaran subdivision.

KeywordEdiacaran Biostratigraphy Chemostratigraphy Stratotype Section South China
DOI10.1007/s11430-017-9216-2
Language英语
WOS KeywordYangtze Gorges Area ; Neoproterozoic Doushantuo Formation ; Organic-walled Microfossils ; South China ; North China ; Acanthomorphic Acritarchs ; Chemostratigraphic Data ; Fossil Gaojiashania ; Lantian Formation ; Lesser Himalaya
Funding ProjectStrategic Priority Research Program (B) of Chinese Academy of Sciences[XDB18000000] ; National Natural Science Foundation of China[41672027]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000455070400002
Funding OrganizationStrategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16059
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhou, Chuanming (周传明)
Affiliation1.Chinese Acad Sci, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
4.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA
5.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Zhou, Chuanming ,Yuan, Xunlai ,Xiao, Shuhai,et al. Ediacaran integrative stratigraphy and timescale of China[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(1):7-24.
APA Zhou, Chuanming ,Yuan, Xunlai ,Xiao, Shuhai,Chen, Zhe ,&Hua, Hong.(2019).Ediacaran integrative stratigraphy and timescale of China.SCIENCE CHINA-EARTH SCIENCES,62(1),7-24.
MLA Zhou, Chuanming ,et al."Ediacaran integrative stratigraphy and timescale of China".SCIENCE CHINA-EARTH SCIENCES 62.1(2019):7-24.
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