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Hikage Tuff 50 Nagamori et al., 2003

Abbr.: Hkg50

• Tephra
• Pliocene (3.0 Ma, FT)

• Lithofacies: Tuff

• Host: Hikage Formation
• Thickness: ca. 6 m

• Distribution: Nagano pref.

• Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)