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Hirono II Tephra Hashimoto, 1978MS ex Mitamura, 1993

• Tephra
• Pleistocene

• Lithofacies: Volcanic ash

• Host: Nagaike Formation

• Distribution: Kyoto pref.

• Wakita et al. (2013) Geology of the Kyoto-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 124p. (in Japanese with English abstract 3p.)