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Chomyoji I Tephra Wada, 1978

• Type locality: Chomyoji town, Kameyama city, Mie prefecture
• Tephra
• Pliocene - Pleistocene

• Lithofacies: Volcanic ash

• Host: Middle Member
• Thickness (Upper): 20 cm
• Thickness (Lower): 30 cm

• Distribution: Chomyoji town, Kameyama city, Mie pref.; Minamibata - Kamino, Suzuka city, Mie pref.

• Yoshida (1984) Geology of the Yokkaichi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 81p. (in Japanese with English abstract 5p.)
• 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.)