Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation
文献类型：期刊论文
| 作者 | Hu, Ningjing1,3; Huang, Peng2,3; Zhang, Hui1 ; Zhang, Ying1; Shi, Xuefa1,3; Liu, Jihua1,3; Fan, Xiaorong1
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| 刊名 | CONTINENTAL SHELF RESEARCH
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| 出版日期 | 2020-12-26 |
| 卷号 | 210页码:12 |
| ISSN号 | 0278-4343 |
| DOI | 10.1016/j.csr.2020.104277 |
| 通讯作者 | Huang, Peng(huangpeng@qdio.ac.cn) |
| 英文摘要 | Sediment provenance and transport, together with the forcing mechanism behind provenance changes in the middle Okinawa Trough over the past 16 kyr, were reconstructed using records of elemental and Sr-Nd isotopic compositions within the chronological framework of accelerator mass spectrometry radiocarbon dating. Results clearly revealed four notable phases of change in the sediment provenance those are closely related to sea-level fluctuations, the development of the Kuroshio Current (KC), magnitude of tidal bottom stress, and climatic variability of the East Asian monsoon. The sediments of Unit 1 (16-13.8 kyr BP) originated primarily from Changjiang, with a small degree originating from paleo-Huanghe as a result of low-stand sea-level deposition. The sediments of Unit 2 (13.8-11.6 kyr BP) originated from Taiwan the strengthening of because of the KC and the gradual landward retreat of the river mouth; the contribution of Changjiang sediments was reduced. The dominant provenance of Unit 3 (11.6-8.3 kyr BP) changed to seafloor erosion or resuspension and Taiwan sediments with an admixture of Changjiang-derived sediments. After that period, currents, especially the intense KC-dominated deposition, led to dominant sediment supplies from Taiwan during the enhanced KC interval of 8.3-5.4 kyr BP. A prominent decrease in Taiwan-derived particle supply at 5.4-2.8 kyr BP resulted from the suppression of the KC related to the Pulleniatina minimum event. This study suggests that Sr-Nd isotope compositions are useful proxies for understanding the linkage between river sediment source-to sink processes and paleoenvironmental changes in East Asian marginal regions. |
| 资助项目 | National Natural Science Foundation of China[41376073] ; National Natural Science Foundation of China[41576055] ; National Basic Research Program of China[2013CB429704] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000592501300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/169279]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Huang, Peng |
| 作者单位 | 1.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Ningjing,Huang, Peng,Zhang, Hui,et al. Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation[J]. CONTINENTAL SHELF RESEARCH,2020,210:12. |
| APA | Hu, Ningjing.,Huang, Peng.,Zhang, Hui.,Zhang, Ying.,Shi, Xuefa.,...&Fan, Xiaorong.(2020).Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation.CONTINENTAL SHELF RESEARCH,210,12. |
| MLA | Hu, Ningjing,et al."Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation".CONTINENTAL SHELF RESEARCH 210(2020):12. |
入库方式： OAI收割
来源：海洋研究所
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