Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications

doi:10.1016/j.jseaes.2016.05.004

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	Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications
	Luo, Chao 1; Zheng, Yan 2; Zheng, Hongbo 1; Tada, Ryuji 3; Rits, Daniel S.1,4
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2016-07-01
卷号	124 页码:204-213
关键词	Yangtze River Environmental Magnetism Hydrodynamic Sorting Provenance Seasonal Variation
DOI	10.1016/j.jseaes.2016.05.004
文献子类	Article
英文摘要	As the largest river of China, the Yangtze River transports large amounts of sediments to the adjacent oceans. Provenance of these ancient marine sediments can only be deciphered when the source-to sink process of modern sediments in the Yangtze River is fully understood. Many methods have been used to study the provenance of river sediment and an environmental magnetic method is applied in this study because of its fast, nondestructive advantages. Magnetic properties of suspended particulate matter (SPM) along the Yangtze River were measured to provide a holistic understanding about magnetic properties of sediments in this river and its controlling factors. The results indicate that the dominant magnetic mineral in SPM is magnetite, with a small contribution of hematite and goethite. Significant spatial variation was observed in most of the magnetic parameters, which primarily reflects the distribution of major geologic units along the drainage area of the river. Anthropogenic influences are also recorded in the magnetic parameters. The Three Gorges Dam results in a dramatic decrease of magnetic minerals in the downstream reaches, since its construction in 2003. In addition, small variations in magnetic properties of SPM are found along water depth, together with a clear seasonal shift at Datong station. This seasonal variation of magnetic properties of SPM is driven by variability in both hydrology and source contributions. This complicates the use of magnetic parameters for provenance studies. Magnetic properties of sediments in rivers are capable of tracing provenance areas, but caution must be taken into account. (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词	ND ISOTOPIC COMPOSITIONS ; DEEP-SEA SEDIMENTS ; CHANGJIANG RIVER ; SEASONAL-VARIATIONS ; NORTH-ATLANTIC ; CHINESE LOESS ; 3 GORGES ; PROVENANCE ; BASIN ; SUSCEPTIBILITY
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000378463600015
资助机构	National Basic Research Program of China(2015CB953804) ; Chinese National Natural Science Foundation (NSFC)(41472146 ; Scientific Research from the Japan Society for Promotion of Science(23221002) ; 41104043)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7013]
专题	古脊椎动物与古人类研究所_图书馆1
作者单位	1.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, IVPP, Beijing 100044, Peoples R China 3.Univ Tokyo, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan 4.Vrije Univ Amsterdam, Dept Earth Sci, NL-1081 HV Amsterdam, Netherlands
推荐引用方式 GB/T 7714	Luo, Chao,Zheng, Yan,Zheng, Hongbo,et al. Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,124:204-213.
APA	Luo, Chao,Zheng, Yan,Zheng, Hongbo,Tada, Ryuji,&Rits, Daniel S..(2016).Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications.JOURNAL OF ASIAN EARTH SCIENCES,124,204-213.
MLA	Luo, Chao,et al."Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications".JOURNAL OF ASIAN EARTH SCIENCES 124(2016):204-213.