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*Sotaro Baba
Faculty of Education, University of the Ryukyus
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Yasuhito Osanai
Faculty of Social and Cultural Studies, Kyushu University
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Nobuhiko Nakano
Faculty of Social and Cultural Studies, Kyushu University
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Tomokazu Hokada
National Institute of Polar Research
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Tatsuro Adachi
Faculty of Social and Cultural Studies, Kyushu University
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Tsuyoshi Toyoshima
Department of Geology, Niigata University