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*Katsuo Tsukamoto
Tohoku University, Institue of Mineralogy, Peterology and Economic Geology
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Ken Nagashima
Tohoku University, Institue of Mineralogy, Peterology and Economic Geology
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Hisao Satoh
Geological Survey of Japan
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Kazuhiko Kuribayashi
ISAS
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Hidekazu Kobatake
Tohoku University, Institue of Mineralogy, Peterology and Economic Geology