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Kojiro Tuff Ikebe et al., 1951

• Tephra
• Miocene

• Lithofacies: Tuff

• Host: Kojiro Tuffaceous Sandstone Member

• Distribution: Kojiro, Himi city, Toyama pref.;

• Sumi et al. (1989) Geology of the Isurugi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 118p. (in Japanese with English abstract 5p.)