Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation

doi:10.1016/j.csr.2020.104277

IOCAS-IR

	Sr-Nd isotopes indicating the provenance of siliciclastic sediments and paleoenvironmental changes in the middle Okinawa Trough during the last deglaciation
	Hu, Ningjing 1,3; Huang, Peng 2,3; Zhang, Hui1 ; Zhang, Ying 1; Shi, Xuefa 1,3; Liu, Jihua 1,3; Fan, Xiaorong 1
	2020-12-26
发表期刊	CONTINENTAL SHELF RESEARCH
ISSN	0278-4343
卷号	210 页码:12
通讯作者	Huang, Peng(huangpeng@qdio.ac.cn)
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.
DOI	10.1016/j.csr.2020.104277
收录类别	SCI
语种	英语
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
WOS类目	Oceanography
WOS记录号	WOS:000592501300001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/169280
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
通讯作者单位	中国科学院海洋研究所
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.

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