Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings

doi:10.1016/j.margeo.2020.106345

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Quantitative reconstruction of Holocene sediment source variations in the Yellow and northern East China Seas and their forcings
	Lim, Dhongil 1,4; Kim, Jihun 1,4; Xu, Zhaokai 5; Jung, Hoisoo 4; Yoo, Dong-Geun 6; Choi, Mansik 2; Kim, So-Young 3
刊名	MARINE GEOLOGY
	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
出版者	ELSEVIER
WOS记录号	WOS:000595643300014
内容类型	期刊论文
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.Univ Sci & Technol, KIOST Sch, Daejeon 34113, South Korea 2.Chungnam Natl Univ, Dept Oceanog, 99 Daehak Ro, Daejeon 34134, South Korea 3.Korea Polar Res Inst, Div Polar Ocean Sci, Incheon 21990, South Korea 4.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje 53201, South Korea 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 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.