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Yamada Tephra

• Tephra
• Pleistocene
• Correlation: Nijigaoka II

• Lithofacies: Volcanic ash

• Host: Minamisho Clays Member

• Distribution: Minamisho, Otsu city, Shiga pref.

• Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)