Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica
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概要
- 論文の詳細を見る
To clarify the basal hydrology of Soya drainage, East Antarctica, we studied the formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast by using stable isotope ratios (δ^<18>O andδD). The stable isotopes of this bubble-free ice are almost the same values withoutδ-value fluctuations as those from Rayleigh-type fractionation; isotopically, the bubble-free ice was heavier by 3.8 and 27‰ for δ^<18>O and δD, respectively, than the neighboring bubbly ice. These results suggest that the pocket was formed by meltwater refreezing during the discharge of water to the lower reach under the Soya drainage. Meltwater under the Soya drainage is considered to have flowed through R-channels.
- 国立極地研究所の論文
著者
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Watanabe Okitsugu
National Institute of Polar Research, Research Organization of Information and Systems
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Watanabe Okitsugu
National Institute Of Polar Research
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Iizuka Yoshinori
National Institute of Polar Research
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Satake Hiroshi
Department of Environmental Chemistry and Biology, Toyama University
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Watanabe O
National Inst. Polar Res. Tokyo
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Satake Hiroshi
Department Of Environmental Chemistry And Biology Toyama University
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Satake Hiroshi
Department Of Environmental Biology And Chemistry University Of Toyama
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