KMS Institute of Vertebrate Paleontology and Paleoanthropology
Temporal and spatial variations in magnetic properties of suspended particular matter in the Yangtze River drainage and their implications | |
Luo, Chao1; Zheng, Yan2; Zheng, Hongbo1; Tada, Ryuji3; Rits, Daniel S.1,4 | |
2016-07-01 | |
发表期刊 | JOURNAL OF ASIAN EARTH SCIENCES
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卷号 | 124页码:204-213 |
文章类型 | Article |
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. |
关键词 | Yangtze River Environmental Magnetism Hydrodynamic Sorting Provenance Seasonal Variation |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.1016/j.jseaes.2016.05.004 |
关键词[WOS] | ND ISOTOPIC COMPOSITIONS ; DEEP-SEA SEDIMENTS ; CHANGJIANG RIVER ; SEASONAL-VARIATIONS ; NORTH-ATLANTIC ; CHINESE LOESS ; 3 GORGES ; PROVENANCE ; BASIN ; SUSCEPTIBILITY |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | 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) |
WOS研究方向 | Geology |
WOS类目 | Geosciences, Multidisciplinary |
WOS记录号 | WOS:000378463600015 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.205/handle/311034/7013 |
专题 | 中科院古脊椎所(2000年以后) |
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. |
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