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Reishi Takashima
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Hiroshi Nishi
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Tsunemasa Saito
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Takashi Hasegawa
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Author's Organization:Institute of Geology and Paleontology,Graduate School of Science,Tohoku University Institute of Geology and Paleontology,Graduate School of Science,Tohoku University Institute of Geology and Paleontology,Graduate School of Science,Tohoku University Department of Earth Sciences,Faculty of Science,Kanazawa University