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Ë’Ã ‰ÎÓ—¬‘ÍÏ•¨ (’ʤŽY‹ÆÈ, 1969) –ö‘ò‚ÆŽRŒ³, 1998

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Saitsu Pyroclastic Flow Deposit (Ministry of International Trade and Industry, 1969) Yanagisawa and Yamamoto, 1998

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