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A trench work with Dr. H. Hoshizumi on 25 August, 2000,
near the summit of the Yo-so-mi-yama (1910 crypt dome
at the foot of Usu volcano).

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A columnar section of the trench wall.

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Brief description of a series of field work during 22 to 26 August, 2000 is HERE (in Japanese with a lot of pictures)


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