Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings
文献类型：期刊论文
| 作者 | Lim, Dhongil3,4; Kim, Jihun3,4; Xu, Zhaokai1; Jung, Hoisoo3; Yoo, Dong-Geun6; Choi, Mansik5; Kim, So-Young2 |
| 刊名 | MARINE GEOLOGY
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 430页码:11 |
| 关键词 | Sediment source Al-Mg regression analysis Quantitative apportionment Yellow Sea |
| ISSN号 | 0025-3227 |
| DOI | 10.1016/j.margeo.2020.106345 |
| 通讯作者 | Kim, So-Young(kimsy@kopri.re.kr) |
| 英文摘要 | Sediment provenance in the Yellow Sea and northern East China Seas (YECSs) has long been a subject of interest, but its quantification is still inconclusive. Here, we present an improved Al-Mg regression analysis by refining its methodological approach to strengthen quantification of sediment source-to-sink transports in the YECSs, with focus on its forcing mechanisms during the Holocene. Our quantitative source estimates clearly depict a considerable supply of the Chinese river (CR) sediments (similar to 50%) to the southwestern Korean coastal region, and the Korean river (KR) sediments (30-40%) to the Central Yellow Sea Mud deposit, which accounts for a good balance between the sediment supply and budget of the shelf deposit. Of particular note is an abrupt decline in the CR contributions around 124 degrees E, which indicates that the CR sediments do not directly reach the eastern part of the Yellow Sea blocked by a strong physical boundary. Further, the observed variations in proportions between Huanghe-, Changjiang- and Korean river-derived sediments over the last 15 kyr - notably an abrupt increase of CR contribution since similar to 7 ka, followed by a sudden drop at similar to 3-4 ka - exhibit a good correspondence with other mineralogical proxy records. These temporal provenance changes witnessed robust palaeoenvironmental signals which fit to major climatic and oceanographic events linked with sea-level, intensity of the Kuroshio Current inflow and the East Asian monsoon. This study improves understanding of what pathways and sinks exist within the YECS basin, and how rates of sediment supply from adjacent rivers have changed over time. |
| 资助项目 | Korea Institute of Ocean & Technology (KIOST) research program[PE99862] ; Library of Marine Samples (LiMS) of Korea Institute of Ocean Science & Technology, Korea |
| WOS研究方向 | Geology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000595643300014 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/169426]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Kim, So-Young |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Korea Polar Res Inst, Div Polar Ocean Sci, Incheon 21990, South Korea 3.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje 53201, South Korea 4.Univ Sci & Technol, KIOST Sch, Daejeon 34113, South Korea 5.Chungnam Natl Univ, Dept Oceanog, 99 Daehak Ro, Daejeon 34134, South Korea 6.Korea Inst Geosci & Mineral Resources, Petr & Marine Div, Daejeon 34132, South Korea |
| 推荐引用方式 GB/T 7714 | Lim, Dhongil,Kim, Jihun,Xu, Zhaokai,et al. Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings[J]. MARINE GEOLOGY,2020,430:11. |
| APA | Lim, Dhongil.,Kim, Jihun.,Xu, Zhaokai.,Jung, Hoisoo.,Yoo, Dong-Geun.,...&Kim, So-Young.(2020).Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings.MARINE GEOLOGY,430,11. |
| MLA | Lim, Dhongil,et al."Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings".MARINE GEOLOGY 430(2020):11. |
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来源：海洋研究所
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