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Isoo I Tephra

• Tephra
• Pliocene - Pleistocene

• Lithofacies: Volcanic ash

• Host: Kaigake Member

• Distribution: Shiga pref.

• Miyamura et al. (1981) Geology of the Kameyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 128p. (in Japanese with English abstract 9p.)