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首页> 外文期刊>Journal of Asian earth sciences >Magnetic investigation of surface sediments of the northwestern South China Sea: Implication for sediment provenance and transportation
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Magnetic investigation of surface sediments of the northwestern South China Sea: Implication for sediment provenance and transportation

机译：南海西北地表沉积物的磁性调查：沉积物出处和运输的含义

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摘要

Environmental magnetism has been widely used as a rapid, cost-effective, and non-destructive method in various fields including sediment source identification. Systemic magnetic measurements were performed for surface sediments collected from sixty-eight stations within the eastern Beibu Gulf to the south of the Hainan Island. The results indicate that a mixture of single domain (SD) and multi-domain (MD) or persuade single domain (PSD) magnetite and a small part of hematite controlled the magnetic properties of the studied sediments. From north to south, concentration of magnetic minerals slightly decreased and then increased. The study area is partitioned to three sedimentary zones from west to east. Terrigenous input materials from the Qinzhou bay, the Red river, and rivers in the Hainan Island are transported from zone I, II, to III. Terrigenous input dominated sediments of the northern and eastern BBG. Both north-south terrestrial materials and south-north marine sediments carried by offshore tidal current are mixed at further outward to the south of the Hainan Island. The present study proves the effectiveness of the magnetic method for examining provenance and transportation of sediments. We believe that sediments in the eastern Beibu Gulf to the south of the Hainan Island were transported from Qinzhou bay, Red river, and rivers in the Hainan Island.
机译：环境磁力已被广泛应用于包括沉积物源识别的各个领域的快速，经济效益和非破坏性方法。在海南岛东部六十八个站内收集的地表沉积物进行了全身磁力测量。结果表明单结构域（SD）和多域（MD）或说服单结构磁铁矿和赤铁矿的一小部分的混合物控制了所研究的沉积物的磁性。从北到南，磁性矿物浓度略微下降，然后增加。研究区域被划分为来自西部到东部的三个沉积区。来自钦州湾，红河和海南岛河流的人干投入材料从II，II，III，III区运送。 BBG北部和东部的人干投入主导沉积物。南北陆地材料和南北海洋沉积物均以海上潮流携带的，在海南岛的南部进一步向外混合。本研究证明了磁力方法检查沉积物的出处和运输的有效性。我们认为，海南岛东部北部海湾东部的沉积物从海南岛的钦州湾，红河和河流运输。

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  • 来源
    《Journal of Asian earth sciences》 |2020年第15期|104530.1-104530.11|共11页
  • 作者

    Tian Chengjing; Ouyang Tingping; Li Mingkun; Zhang Jinlan; Peng Shasha; Zhu Zhaoyu; Peng Xuechao; Hu Qiao; Qiu Yan; Chen Hongjun;

  • 作者单位

    Minist Nat Resources Guangzhou Marine Geol Survey Key Lab Marine Mineral Resources Guangzhou 510075 Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China|South China Normal Univ Sch Geog Guangzhou 510631 Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China|South China Normal Univ Sch Geog Guangzhou 510631 Peoples R China;

    Guangdong Polytech Ind & Commerce Guangzhou 510510 Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China;

    Minist Nat Resources Guangzhou Marine Geol Survey Key Lab Marine Mineral Resources Guangzhou 510075 Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem Key Lab Ocean & Marginal Sea Geol Guangzhou 510640 Peoples R China;

    Minist Nat Resources Guangzhou Marine Geol Survey Key Lab Marine Mineral Resources Guangzhou 510075 Peoples R China;

    Minist Nat Resources Guangzhou Marine Geol Survey Key Lab Marine Mineral Resources Guangzhou 510075 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Provenance; Transportation pathway; Surface sediments; Magnetic properties; The eastern Beibu Gulf to the south of the Hainan Island;

    机译：来源;运输途径;表面沉积物;磁性;北部北部湾到海南岛的南部;

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