Linking environmental changes and organic matter enrichment in the middle part of the Yanchang Formation (Ordos Basin, China) to the rollback of an oceanic slab in the eastern Paleo-Tethys
文献类型：期刊论文
| 作者 | Zhang, Jiaqiang1,2,3; Qiu, Zhen3,4; Li, Shutong5; Gao, Shanlin6; Guo, Ruiliang7; Ma, Xiaofeng5; Qiu, Junli5; Li, Shixiang8; Tao, Huifei5; Chen, Junlin1,5 |
| 刊名 | SEDIMENTARY GEOLOGY
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 455页码:17 |
| ISSN号 | 0037-0738 |
| 关键词 | Organic matter enrichment Yanchang Formation Ordos Basin Paleo-Tethys |
| DOI | 10.1016/j.sedgeo.2023.106480 |
| 英文摘要 | The Yanchang Formation, which records the whole evolutionary history of the Middle-Late Triassic lacustrine basin in the western part of the North China Block, provides an opportunity to understand the relationship between the tectono-sedimentary evolution and massive organic matter burial in lacustrine systems. The present study investigates the changes in the lithofacies association, provenance, regional tectonism, depositional environment, and organic matter accumulation in the lower-middle part of the Yanchang Formation, aiming to unravel their links. As a result of the rapid deepening of the southern Ordos Basin, the deposits in the depocenter of the basin shifted dramatically from shallow lacustrine sandstones of the lower part of the Yanchang Formation (i.e., Chang 8 Member) to deep lacustrine shales and gravity flow deposits of the middle part of the Yanchang Formation (i.e., Chang 7 Member). The provenance of the overlying Chang 7 Member is distinct from that of the underlying Chang 8 Member. It is proposed that crustal extension caused by the southwestward rollback of an oceanic slab in the eastern Paleo-Tethys may have triggered the rapid extensional subsidence in the southern Ordos Basin during the early Ladinian. In response to this deep geodynamic process, the depositional environment of the contemporaneous Ordos Basin changed significantly, as reflected by improved primary productivity, enhanced bottom-water anoxia, as well as reduced terrigenous clastic supply in the Ordos Lake. The coupling of these processes further led to the enrichment of organic matter in the Chang 7 Member. (c) 2023 Elsevier B.V. All rights reserved. |
| WOS关键词 | GRAVITY-FLOW DEPOSITS ; QINLING OROGEN ; TECTONIC EVOLUTION ; CARBON ; GEOCHEMISTRY ; RICH ; SEDIMENTS ; ZIRCON ; ORIGIN ; MEMBER |
| 资助项目 | National Natural Science Foundation of China[42222209] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41772142] ; Scientific Research and Technological Development Programs of CNPC[2021yjcq02] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001077807700001 |
| 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 ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC ; Scientific Research and Technological Development Programs of CNPC |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110798]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Qiu, Zhen; Li, Shutong; Xiao, Wenjiao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Natl Petr Corp, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 4.Natl Energy Shale Gas Res & Dev Expt Ctr, Beijing, Peoples R China 5.Chinese Acad Sci, Key Lab Petr Resources, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu Province, Peoples R China 6.SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China 7.Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China 8.PetroChina Changqing Oil Field Co, Res Inst Explorat & Dev, Xian 710018, Peoples R China 9.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiaqiang,Qiu, Zhen,Li, Shutong,et al. Linking environmental changes and organic matter enrichment in the middle part of the Yanchang Formation (Ordos Basin, China) to the rollback of an oceanic slab in the eastern Paleo-Tethys[J]. SEDIMENTARY GEOLOGY,2023,455:17. |
| APA | Zhang, Jiaqiang.,Qiu, Zhen.,Li, Shutong.,Gao, Shanlin.,Guo, Ruiliang.,...&Xiao, Wenjiao.(2023).Linking environmental changes and organic matter enrichment in the middle part of the Yanchang Formation (Ordos Basin, China) to the rollback of an oceanic slab in the eastern Paleo-Tethys.SEDIMENTARY GEOLOGY,455,17. |
| MLA | Zhang, Jiaqiang,et al."Linking environmental changes and organic matter enrichment in the middle part of the Yanchang Formation (Ordos Basin, China) to the rollback of an oceanic slab in the eastern Paleo-Tethys".SEDIMENTARY GEOLOGY 455(2023):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
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