| Holocene Climate Modulates Mud Supply, Transport, and Sedimentation on the East China Sea Shelf | |
Dong, Jiang1,2; Li, Anchun2,3; Liu, Xiting3,4; Wan, Shiming2,3 ; Xu, Fangjian5; Shi, Xuefa1,3
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| 2020-10-01 | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
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| ISSN | 2169-9003 |
| 卷号 | 125期号:10页码:18 |
| 通讯作者 | Li, Anchun([email protected]) |
| 摘要 | Shelf mud is an important sink for fluvial sediment, and it is sensitive to variations in river discharge and ocean circulation, which are significantly influenced by climate change. However, the evolution of shelf mud in response to climate change during the Holocene is poorly understood. Here, we present high-resolution sedimentary records of heavy minerals and mass accumulation rates (MARs) from the East China Sea shelf to study the response mechanisms of the Holocene shelf mud supply, transport, and sedimentation to the climate-driven variations in fluvial discharge and ocean currents. The results indicate that the shelf mud primarily originates from the Changjiang (Yangtze) River and has been mainly transported by wind-driven longshore currents in suspension since approximately 8.0 ka. A comparison of the MARs with several shelf mud sedimentation-rate records and climate changes during the Holocene on millennial timescales showed that strong (weak) precipitation in the river basin, which is positively linked with Asian summer monsoon and El Nino-driven storms, could intensify (weaken) the fluvial sediment supply, thereby increasing (decreasing) the shelf mud deposition flux. On multicentennial timescales, changes in the relative intensities of different ocean currents due to climate oscillations during the Holocene could generate frequent migrations of the current shear front (a hydrodynamic barrier), which has trapped an abundance of suspended materials on the shoreward side and resulted in rapid mud sedimentation (similar to 2.3 g/cm(2)/year) at different sites during different periods. Therefore, our study highlights that the Holocene shelf mud evolution responds sensitively to climate changes on different timescales. |
| DOI | 10.1029/2020JF005731 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41430965]; National Natural Science Foundation of China[41606062]; National Natural Science Foundation of China[U1606401]; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-03]; Qingdao Postdoctoral Applied Research Project[2019254] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000586451100001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/169073 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Li, Anchun |
| 作者单位 | 1.First Inst Oceanog, Key Lab Marine Geol & Metallogeny, Minist Nat Resources, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 4.Ocean Univ China, Coll Marine Geosci, Key Lab Submarine Geosci & Prospecting Tech, Qingdao, Peoples R China 5.China Univ Petr, Sch Geosci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Jiang,Li, Anchun,Liu, Xiting,et al. Holocene Climate Modulates Mud Supply, Transport, and Sedimentation on the East China Sea Shelf[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2020,125(10):18. |
| APA | Dong, Jiang,Li, Anchun,Liu, Xiting,Wan, Shiming,Xu, Fangjian,&Shi, Xuefa.(2020).Holocene Climate Modulates Mud Supply, Transport, and Sedimentation on the East China Sea Shelf.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,125(10),18. |
| MLA | Dong, Jiang,et al."Holocene Climate Modulates Mud Supply, Transport, and Sedimentation on the East China Sea Shelf".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 125.10(2020):18. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 2020JF005731.pdf（10714KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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