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On-Ot Tephra Takemoto et al., 1987

Abbr.: On-Ot

• Tephra
• Pleistocene

• Lithofacies: Pumice
• Distribution axis: East-northeast

• Thickness: 20 - 140 cm

• Distribution: Nomugitoge pass, Takane town, Takayama city, Gifu pref.: Sakaitoge pass, Matsumoto city - Kiso city, Kiso county, Nagano pref.

• Nakano et al. (1995) Geology of the Norikuradake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 139p. (in Japanese with English abstract 4p.)