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Volume 22 Issue 4
Aug 2011
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Journal of Earth Science  > 2011  >  22(4): 431-440.
Nozomu Takeuchi, Yoriko Ishida, Zhongqin Li. Microscopic Analyses of Insoluble Particles in an Ice Core of Ürümqi Glacier No. 1: Quantification of Mineral and Organic Particles. Journal of Earth Science, 2011, 22(4): 431-440. doi: 10.1007/s12583-011-0197-2
Citation: Nozomu Takeuchi, Yoriko Ishida, Zhongqin Li. Microscopic Analyses of Insoluble Particles in an Ice Core of Ürümqi Glacier No. 1: Quantification of Mineral and Organic Particles. Journal of Earth Science, 2011, 22(4): 431-440. doi: 10.1007/s12583-011-0197-2
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Microscopic Analyses of Insoluble Particles in an Ice Core of Ürümqi Glacier No. 1: Quantification of Mineral and Organic Particles

doi: 10.1007/s12583-011-0197-2
  • 1.

    Department of Earth Sciences, Graduate School of Science, Chiba University, Chiba 263-8552, Japan

  • 2.

    State Key Laboratory of Cryospheric Sciences/Tien Shan Glaciological Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

  • 3.

    College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China

Funds:

the Grant-in-Aid for Young Scientists 21681003

a Grant-in-Aid for Scientific Research 22241005

the Japan Society for the Promotion of Science (JSPS) 

the Ili Projects Fund 

the Research Institute for Humanity and Nature, Japan 

More Information
  • Corresponding author: Nozomu Takeuchi, ntakeuch@faculty.chiba-u.jp
  • Received Date: 10 Sep 2010
  • Accepted Date: 30 Dec 2010
  • Publish Date: 01 Aug 2011
    Abstract
  • Insoluble particle concentration in ice cores is commonly analyzed as a proxy for variations in atmospheric mineral dust (aerosol concentration). However, recent studies have revealed that the mineral dust is not only a constituent of the particles but that biogenic organic particles are also contained. We microscopically analyzed insoluble particles in a shallow ice core drilled on a mountain glacier, the Ürümqi Glacier No. 1, in eastern Tienshan, China. We distinguished different morphological particles in the ice core and quantified them separately. Results showed that the insoluble particles in this ice core consisted mainly of mineral particles, amorphous organic particles, pollen, and microorganisms. Mineral particles were the most dominant, accounting for approximately 67% of total particles, and amorphous organic particles were the second most dominant, accounting for approximately 33% of the total. The annual variation in the particles for the last 11 years differed between mineral and amorphous organic particles. The results suggest that the total insoluble particle concentration in the ice core reflects not only the atmospheric mineral dust but also the organic particles blown from ground soil or produced by microbes on the glacial surface.

     

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