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Sequence stratigraphy and tectono-depositional evolution of a late Ediacaran epeiric platform in the upper Yangtze area, South China

文献类型：期刊论文

作者Ding, Yi7; Li, Zhiwu7; Liu, Shugen1,7; Song, Jinmin7; Zhou, Xiqiang3,4,5; Sun, Wei7; Zhang, Xihua2; Li, Shuangjian6; Ran, Bo7; Peng, Hanlin2
刊名PRECAMBRIAN RESEARCH
出版日期2021-03-01
卷号354页码:24
ISSN号0301-9268
关键词Upper Yangtze Late Ediacaran Epeiric platform Sea-level variations Tectono-depositional evolution
DOI10.1016/j.precamres.2020.106077
英文摘要The tectono-depositional evolution of the Yangtze Block during the Ediacaran-Cambrian transition is controversial, leading to uncertainties in understanding the life-environment co-evolution and in petroleum exploration. This study investigated multiple upper Ediacaran (Dengying Formation) outcrops in the upper Yangtze area to reconstruct the carbonate platform evolution and underlying controls. Detailed sedimentological observations allow the identification of nineteen carbonate-dominated and five terrigenous siliciclastic-dominated lithofacies. Based on the spatiotemporal distributions of lithofacies, two and a half transgressive-regressive sequences (the regressive systems tract of S1 and the full sequences S2 and S3 in ascending order) are distinguished. The Dengying Formation mainly consists of carbonate-dominated lithofacies, which can be grouped into four depositional facies: semi-restricted platform, marginal shoal, middle-outer ramp/slope and siliceous basin. The broad platform interior with a flat-topped topography represents an epeiric platform, which can be subdivided into two variants: one dominated by tidal islands in the platform interior mainly during middle-late regressive systems tracts, and another dominated by lagoons in the platform interior mainly in the condensed section of S2 and early regressive systems tracts. Terrigenous siliciclastic-dominated lithofacies occur only in the transgressive systems tract of S3 and are grouped into two depositional facies: coast and shallow sea, representing a terrigenous material-dominated epeiric marine setting formed by a drowning event. These transgressive-regressive sequences can be roughly correlated with the sequences and glaciations documented in coeval successions worldwide, reflecting the control of eustasy. Across the eastern margin of the upper Yangtze Platform, the incompleteness (or absence) of S2 and S3 and lower Cambrian Terreneuvian strata along the platform margin and the extremely condensed Ediacaran-Cambrian transitional successions in the lower slope and basin may have been caused by differential uplift and subsidence induced by extensional faulting. The fault zone and the two reported synthetic extensional fault zones in the middle Yangtze area largely followed the pre-existing horst and graben configuration, indicating the activation of the pre-existing major faults likely associated with a transtensional tectonic regime.
资助项目National Natural Science Foundation of China[41902105] ; National Natural Science Foundation of China[91755210] ; National Natural Science Foundation of China[U19B6003]
WOS研究方向Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000615712000028
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/100128]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Liu, Shugen; Chen, Daizhao
作者单位1.Xihua Univ, Chengdu 610039, Peoples R China
2.PetroChina Southwest Oil & Gasfield Co, Res Inst Explorat & Dev, Chengdu 610041, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
6.SINOPEC Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
7.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Peoples R China
推荐引用方式
GB/T 7714		 Ding, Yi,Li, Zhiwu,Liu, Shugen,et al. Sequence stratigraphy and tectono-depositional evolution of a late Ediacaran epeiric platform in the upper Yangtze area, South China[J]. PRECAMBRIAN RESEARCH,2021,354:24.
APA Ding, Yi.,Li, Zhiwu.,Liu, Shugen.,Song, Jinmin.,Zhou, Xiqiang.,...&Chen, Daizhao.(2021).Sequence stratigraphy and tectono-depositional evolution of a late Ediacaran epeiric platform in the upper Yangtze area, South China.PRECAMBRIAN RESEARCH,354,24.
MLA Ding, Yi,et al."Sequence stratigraphy and tectono-depositional evolution of a late Ediacaran epeiric platform in the upper Yangtze area, South China".PRECAMBRIAN RESEARCH 354(2021):24.

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来源：地质与地球物理研究所

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