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Ohta Tephra

Synonym: Znp-Ohta Tephra

• Type locality: Chogenji, Takayokosuka town, Tokai city, Aichi prefecture
• Tephra
• Pliocene (3.97 Ma, FT; 3.94 Ma, U-Pb; 5.2, 4.2, 3.3 Ma, FT)
• Correlation: Nakatsugawa I, Nakatsugawa II, Togo, Ueno, Akogi, Otani Tephra

• Lithofacies: Pyroclastic flow deposit
• Lithofacies (Minor): Flood flow deposit
• Lithofacies: Pumice-bearing volcanic ash
• Lithofacies (Minor): Charcoal

• Source: Chubu Sangaku area
• Thickness: 450 cm

• Distribution: Chogenji temple, Takayokosuka town, Tokai city, Aichi pref.
• Fossils: Plant fragments

• Ueki et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.3, pp.227-236 DOI
• Sakamoto et al. (1986) Geology of the Nagoya-Nambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 55p. (in Japanese with English abstract 3p.)