氷床コアに保存された火山起源物質

書誌事項

タイトル別名
  • Volcanic aerosols preserved in ice cores.
  • ソウセツ ヒョウショウ コア ニ ホゾン サレタ カザン キゲン ブッシツ

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説明

Atmospheric aerosols including volcanic sulfuric acid and ash deposit on ice sheet.Ice cores from an ice sheet preserve records of past volcanism and climate change. These volcanic layers in the ice core have the potential to serve time mark to ice core as key beds. The amount of the sulfuric acid aerosols emitted to the atmosphere by explosive volcanic eruptions in the past have been estimated by a glaciological method based on sulfate ion concentration in the cores. Atmospheric temperature has been also estimated by oxygen isotope of the ice. Relationships between temporal decrease of the atmospheric temperature and the amount of the volcanic aerosols and between the climate change of glacial/interglacial cycle and volcanic activity have been clarified. This manuscript are reviewed these ice core studies on the past volcanic activity and the climate change.

収録刊行物

  • 雪氷

    雪氷 62 (3), 197-213, 2000

    公益社団法人 日本雪氷学会

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