Journal of Geographical Sciences, Volume. 30, Issue 9, 1481(2020)

Magnetic characteristics of lake sediments in Qiangyong Co Lake, southern Tibetan Plateau and their application to the evaluation of mercury deposition

Xing GAO1... Shichang KANG2, Qingsong LIU3, Pengfei CHEN2, and Zongqi DUAN14,* |Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • 2State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou 730000, China
  • 3Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
  • 4The Geographical Society of China, Beijing 100101, China
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    Figures & Tables(7)
    Location of Qiangyong Co Lake
    Environmental magnetic parameters and mercury (Hg) concentrations of Qiangyong Co Lake (the Hg concentration and Qiangyong chronology are from et al., 2016" target="_self" style="display: inline;">Kang et al., 2016)
    Day-plot (a), magnetic hysteresis loops (b), isothermal remnant magnetization (IRM) acquisition curves (c), and backfield demagnetization curves (d) of Qiangyong Co Lake
    Saturation isothermal remnant magnetization (SIRM) (a), Unmixing of IRM acquisition curves (b-g), First-order reversal curves (FORCs) (h-j) and χ-T (k-m) of typical samples
    Zero-field-cooling (ZFC) curves (a, the solid and dashed lines represent the origin data and first derivative data of the ZRC curves, respectively) and the second derivative curves of diffuse reflectance spectroscopy (DRS) (b) for selected samples from Qiangyong Co Lake
    Correlations between the variations of magnetic components and mercury (Hg) concentration in Qiangyong Co Lake and environmental indexes (annual average precipitation and temperature) of Nagarze station
    The variations of different magnetic components of Qiangyong Co Lake (a-d), annual precipitation (e), average temperature from Nagarze station (f), temperature anomaly of the Tibetan Plateau and the Northern Hemisphere (g), and Hg concentration (h) (the Hg concentration and Qiangyong chronology are from et al., 2016" target="_self" style="display: inline;">Kang et al., 2016; the temperature anomaly of the Tibetan Plateau and the Northern Hemisphere)
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    Xing GAO, Shichang KANG, Qingsong LIU, Pengfei CHEN, Zongqi DUAN. Magnetic characteristics of lake sediments in Qiangyong Co Lake, southern Tibetan Plateau and their application to the evaluation of mercury deposition[J]. Journal of Geographical Sciences, 2020, 30(9): 1481

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    Paper Information

    Category: Research Articles

    Received: Nov. 28, 2019

    Accepted: May. 21, 2020

    Published Online: Apr. 21, 2021

    The Author Email: DUAN Zongqi (duanzq@igsnrr.ac.cn)

    DOI:10.1007/s11442-020-1794-8

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