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T2 Tephra Saito, 1956

Abbr.: T2

• Tephra
• Pliocene - early Pleistocene (2.28 Ma, FT)

• Lithofacies (Upper): Vitreous tuff
• Lithofacies: Pumiceous tuff
• Sedimentary structures (Upper): Parallel stratification
• Sedimentary structures: Cross stratification

• Host: Sarumaru Formation
• Thickness: 2 - 15 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.)
• Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)