How are climatic and environmental signals preserved in an Ice Sheet?

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  • 氷床コア中の気候・環境シグナルはどのように形成されるか
  • ヒョウショウ コアチュウ ノ キコウ カンキョウ シグナル ワ ドノ ヨウ ニ

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Abstract

Snow-ice cores obtained from ice sheets and glaciers are formed from deposited snow and other materials of marine, terrestrial, cosmic and artificial origin.<BR>The depositional mode of these materials is presumed to be a good signal of climatic and environmental changes during the past several hundred thousand years.<BR>In this report, formation processes of these deposits are investigated mainly on the basis of knowledge of regional characteristics of deposition processes obtained from a comprehensive Japanese glaciological study during 19671989 on the Antarctic Ice Sheet.

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