Sedimentary records of East Asian Summer Monsoon evolution and source-sink variations in the northern continental slope of the South China Sea since 70 ka
文献类型：期刊论文
| 作者 | Zhou, Zhibing7; Liu, Huanhao7; Wang, Zhongbo4,7; Zhao, Debo6; Zhao, Shaohua5; Sun, Jun3; Qiao, Pengyu7; Huo, Jierui7; Peng, Qiuxuan7; Wang, Yang2 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 255页码:12 |
| 关键词 | Sediment provenance Monsoon evolution South China Sea End-member modeling Nd-Sr isotopes Late Quaternary |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2025.105059 |
| 通讯作者 | Wang, Zhongbo(zhbwang@stu.edu.cn) |
| 英文摘要 | The orbital-scale evolution of the East Asian Summer Monsoon (EASM) and its response mechanism to low- and high-latitude driving processes remains unclear. The South China Sea (SCS), characterized by thick sedimentary sequences with high accumulation rates, preserves a detailed record of the EASM variability across different climatic periods during the Quaternary period. Here, Core SCSZ22-3 from the northern SCS was systematically analyzed using lithological examination, accelerator mass spectrometry (AMS) 14C dating, stable oxygen isotopes (delta 18O), Sr-Nd isotopic compositions, and grain size end-member modeling (EMM) to investigate provenance and sedimentary responses to EASM evolution over the past 70 ka. The results indicate that the Taiwan, the Pearl, and the Luzon rivers are the primary contributors to the deposition on the northern slope of the SCS. EM2 component (1.8-12.1 mu m) can serve as a proxy indicator for the EASM, thereby providing insights into global millennial-scale climate changes. Spectral analysis and continuous wavelet transform of EM2 reveals distinct orbital periodicities of 31.1, 18.7, and 11.7 ka, and the semi-orbital periodicities of 5.9, 2.3, and 1.2 ka. The 18.7 ka periodicity suggests that precession is the dominant factor controlling the EASM in the SCS. Additionally, the 11.7 ka periodicity indicates that semi-precession exerts a significant influence on monsoon variations within low-latitude regions. Simultaneously, the periodicities of 5.9, 2.3, and 1.2 ka may be attributed to a combined effect resulting from variations of global ice sheets and insolation. The response of the monsoon indicator to these orbital periodicities implies that EASM changes are driven by both low- and high- latitude climatic processes. The findings will highlight the influence of low-latitude forcing on global climatic changes and its implications for late Quaternary evolution of the EASM. |
| WOS关键词 | ND ISOTOPIC VARIATIONS ; GRAIN-SIZE ; EQUATORIAL INSOLATION ; SOUTHWESTERN AFRICA ; CLIMATE VARIABILITY ; KUROSHIO INTRUSION ; SURFACE SEDIMENTS ; MILLENNIAL-SCALE ; LATE PLEISTOCENE ; CIRCULATION |
| 资助项目 | Guangdong Basic and Applied Basic Research Foundation[2024A1515012628] ; National Natural Science Foundation of China[41876059] ; National Natural Science Foundation of China[42372213] ; National Natural Science Foundation of China[42176063] ; Opening Foundation of Key Lab of Submarine Geosciences and Prospecting Techniques, Ocean University of China[SGPT-2023OF-02] ; China Geological Survey Projects[DD20230415] ; China-ASEAN Maritime Cooperation Fund Project[12120100500017001] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001584275800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203491]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Wang, Zhongbo |
| 作者单位 | 1.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 2.Haikou Marine Geol Survey Ctr, China Geol Survey, Haikou 570100, Peoples R China 3.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266237, Peoples R China 4.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, MOE, Qingdao 266100, Peoples R China 5.Minist Nat Resources, Inst Oceanog 3, Xiamen 361005, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 7.Shantou Univ, Inst Marine Sci, Guangdong Prov Key Lab Marine Disaster Predict & P, Shantou 515063, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Zhibing,Liu, Huanhao,Wang, Zhongbo,et al. Sedimentary records of East Asian Summer Monsoon evolution and source-sink variations in the northern continental slope of the South China Sea since 70 ka[J]. GLOBAL AND PLANETARY CHANGE,2025,255:12. |
| APA | Zhou, Zhibing.,Liu, Huanhao.,Wang, Zhongbo.,Zhao, Debo.,Zhao, Shaohua.,...&Yang, Shouye.(2025).Sedimentary records of East Asian Summer Monsoon evolution and source-sink variations in the northern continental slope of the South China Sea since 70 ka.GLOBAL AND PLANETARY CHANGE,255,12. |
| MLA | Zhou, Zhibing,et al."Sedimentary records of East Asian Summer Monsoon evolution and source-sink variations in the northern continental slope of the South China Sea since 70 ka".GLOBAL AND PLANETARY CHANGE 255(2025):12. |
入库方式： OAI收割
来源：海洋研究所
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