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Otaniike Tephra Kimura, 1959

• Type locality: Lake Otaniike, Takanoo town, Tsu city, Mie prefecture
• Tephra
• Pliocene (3.33 Ma, FT)
• Correlation: Kamishiraki Tephra, Kannonji I Tephra, Kannonji II Tephra

• Lithofacies: Volcanic ash
• Sedimentary structures (Upper): Parallel stratification
• Sedimentary structures (Lower): Graded bedding

• Thickness: 20 - 45 cm
• Thickness (Upper): 10 - 20 cm
• Thickness (Lower): 10 - 25 cm
• Host: Kameyama Formation, Kusuhara Formation

• Distribution: Lake Otaniike - Kannonji town - Anno - Toshima - Tamon - Tonomachi - Toyosato, Tsu city, Mie pref.; Kusubirao town - Futao town, Kameyama city, Mie pref.

• Yoshida et al. (1995) Geology of the Tsu-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 6p.)
• Yoshida (1987) Geology of the Tsu-Tobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 72p. (in Japanese with English abstract 5p.)