中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Provenance discrimination of sediments in the Zhejiang-Fujian mud belt, East China Sea: Implications for the development of the mud depocenter

文献类型:期刊论文

作者Liu, Xiting1,2; Li, Anchun1; Dong, Jiang1,3; Lu, Jian1; Huang, Jie1; Wan, Shiming1,2
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2018
卷号151页码:1-15
关键词Mud Depocenter Sediment Provenance The East China Sea Clay Mineral Holocene
DOI10.1016/j.jseaes.2017.10.017
文献子类Review
英文摘要In the past decade, the 800 km elongated mud belt off Zhejiang-Fujian coast, East China Sea (ECS), has been extensively studied for understanding the source to sink processes on the East Asian continental margin in the context of the Asian monsoon. However, to better understand the sediment source and dispersal pattern, the existing mineralogical and geochemical data of adjacent river systems, including the Changjiang River (CJR) and local rivers in Zhejiang, Fujian and Taiwan, need to be systematically reviewed. Therefore, various indicators from published literatures for the provenance discrimination in the mud belt have been summarised in this article. The results show that high diversity of clay mineral assemblages in fluvial sediments being supplied into the mud belt, e.g., dominant illite and chlorite in the CJR, absence of smectite in Taiwan rivers, similar amounts of the four clay mineral species in Zhejiang rivers, and dominant kaolinite in Fujian rivers. On heavy mineralogy, the CJR is dominated by dolomite, hornblende, and flaky minerals; and among of them, dolomite is distinctive for the CJR. For geochemical approaches, elemental compositions, combined with strontium and neodymium isotopes, reflect strong provenance control. However, geochemical and mineralogical compositions are found to vary with grain size, and thus extra caution should be taken when using these parameters as provenance indicator to discriminate the marine sediments with variety of grain-size fractions. In addition, pyrrhotite, occurred in fluvial sediments from western Taiwan, has not been found in sediments derived from mainland China, indicating that magnetic parameters could be used to discriminate sediment provenance. The mud belt formed during sea-level highstand, when modern current system in the ECS has been established, resulting in sediments derived from the CJR have been transported southward since 8 ka. In addition, sediment provenances have not been constant since initiation of the mud belt in response to climatic and oceanographic changes during the Holocene, which has been documented by mineral and geochemical signals. Nevertheless significant studies have been carried out, to better understand the formation mechanism for the mud belt and its implications for environmental changes, further studies on sediment provenance throughout the Holocene, in situ observation, and sedimentation dynamical modelling are required.
语种英语
WOS记录号WOS:000418974400001
版本出版稿
源URL[http://ir.qdio.ac.cn/handle/337002/154318]  
专题海洋研究所_海洋地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Liu, Xiting,Li, Anchun,Dong, Jiang,et al. Provenance discrimination of sediments in the Zhejiang-Fujian mud belt, East China Sea: Implications for the development of the mud depocenter[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,151:1-15.
APA Liu, Xiting,Li, Anchun,Dong, Jiang,Lu, Jian,Huang, Jie,&Wan, Shiming.(2018).Provenance discrimination of sediments in the Zhejiang-Fujian mud belt, East China Sea: Implications for the development of the mud depocenter.JOURNAL OF ASIAN EARTH SCIENCES,151,1-15.
MLA Liu, Xiting,et al."Provenance discrimination of sediments in the Zhejiang-Fujian mud belt, East China Sea: Implications for the development of the mud depocenter".JOURNAL OF ASIAN EARTH SCIENCES 151(2018):1-15.

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来源:海洋研究所

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