宇宙塵を南極氷床から磁気的に検出する試み Identification of cosmic dust in Antarctic ice by magnetic methods

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Identification of cosmic dust in Antarctic ice by magnetic methods is discussed based on the rock magnetic results of the clean-ice and dirt-ice. The cosmic dust sized several μm (in diameter) with the saturation isothermal remanent magnetization is identified by the superconducting quantum interference device (SQUID) magnetometer. The direction of natural remanent magnetization of the cosmic dust in ice is discussed. The cosmic dust may be preferably transported to Antarctica through the stratosphere atmospheric circulation. The cosmic dust may be concentrated under the ice surface of bare ice around Antarctic coasts by the interaction of precipitation of cosmic dust in melted water and ablation of ice by the solar radiation. The concentration may not occur in the high land in Antarctica due to too low temperature.

収録刊行物

  • 地球化学

    地球化学 32(4), 225-232, 1998

    一般社団法人日本地球化学会

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各種コード

  • NII論文ID(NAID)
    110008679964
  • NII書誌ID(NCID)
    AN00141280
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0386-4073
  • NDL 記事登録ID
    4628327
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-645
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE 
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