Tectono-depositional pattern and evolution of the middle Yangtze Platform (South China) during the late Ediacaran
文献类型：期刊论文
| 作者 | Ding, Yi1,2,3,4; Chen, Daizhao1,3,4; Zhou, Xiqiang1,3,4; Guo, Chuan3,4; Huang, Taiyu1,3,4; Zhang, Gongjing1,3,4 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 333页码:22 |
| ISSN号 | 0301-9268 |
| 关键词 | Late Ediacaran Dengying Formation Yangtze Platform Sequence stratigraphy Tectono-depositional pattern |
| DOI | 10.1016/j.precamres.2019.105426 |
| 英文摘要 | The depositional environments and evolution of the Yangtze Block during the Ediacaran-Cambrian transition remain uncertain, preventing a thorough understanding of the coeval ocean stratification, redox heterogeneity and organism distribution. In this study, detailed facies and sequence stratigraphic analyses were carried out on the Dengying Formation and its correlatives to better constrain the tectono-depositional pattern and evolution of the middle Yangtze area in the late Ediacaran. Twenty-five lithofacies were identified in nineteen sections and grouped into six depositional fades: intrashelf basin, intrashelf shoal, restricted platform interior, platform margin, upper-middle slope, and lower siliceous slope-basin. The spatiotemporal distributions of these depositional facies reveal an isolated, rimmed middle Yangtze carbonate platform embayed with a westward-opening intrashelf basin. This intrashelf basin gradually became wider and deeper westwards, linking to a NNE-trending basinal seaway that separated the middle Yangtze Platform from its upper Yangtze counterpart. The enclosure of the marginal shoal-reef complex with an intrashelf shoal chain formed a large-scale restricted lagoon and associated tidal flat in the platform interior. Based on key sequence boundaries and cycle stacking patterns, two and a half transgressive-regressive sequences were distinguished in the Dengying Formation and its correlatives in the twelve representative sections. Furthermore, these sequences can be correlated well with those identified in other upper Ediacaran successions elsewhere in upper Yangtze, Namibia, India and Oman, indicating a eustatic origin for these sequences. However, the complex platform-basin configuration, with significant facies and thickness variations, reflects a transtensional tectonic regime in the middle Yangtze area during the late Ediacaran. The abrupt changes in lithofacies and thickness across the southern principal platform margin and those from sandy shoals/banks to storm-influenced shelf along the northern portion of the intrashelf basin in the Three Gorges (western Hubei) suggest synthetic extensional faulting across the margins during deposition. The two synthetic extensional fault zones might have been induced by NNE-trending transtensional faulting along the eastern margin of the upper Yangtze Platform. This structural pattern fundamentally controlled the depositional differentiation of the middle Yangtze Platform during the late Ediacaran and also laid the foundation for the subsequent facies distribution and depositional evolution during the early Cambrian Terreneuvian Epoch. |
| WOS关键词 | SEQUENCE STRATIGRAPHY ; DOUSHANTUO FORMATION ; CARBONATE PLATFORM ; GEOCHRONOLOGICAL CONSTRAINTS ; CAMBRIAN TRANSITION ; LESSER HIMALAYA ; GORGES AREA ; DEEP-OCEAN ; BASIN ; ARCHITECTURE |
| 资助项目 | National Natural Science Foundation of China (NSFC)[41472089] ; National Natural Science Foundation of China (NSFC)[U1663209] ; National Natural Science Foundation of China (NSFC)[91755210] ; National Key R&D Program of China[2017YFC0603103] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000493218900006 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95755]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Chen, Daizhao |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chengdu Univ Technol, Postdoctoral Res Stn Geol Resource & Geol Engn, Chengdu 610059, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Yi,Chen, Daizhao,Zhou, Xiqiang,et al. Tectono-depositional pattern and evolution of the middle Yangtze Platform (South China) during the late Ediacaran[J]. PRECAMBRIAN RESEARCH,2019,333:22. |
| APA | Ding, Yi,Chen, Daizhao,Zhou, Xiqiang,Guo, Chuan,Huang, Taiyu,&Zhang, Gongjing.(2019).Tectono-depositional pattern and evolution of the middle Yangtze Platform (South China) during the late Ediacaran.PRECAMBRIAN RESEARCH,333,22. |
| MLA | Ding, Yi,et al."Tectono-depositional pattern and evolution of the middle Yangtze Platform (South China) during the late Ediacaran".PRECAMBRIAN RESEARCH 333(2019):22. |
入库方式： OAI收割
来源：地质与地球物理研究所
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