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Togesawa Welded Tuff Harayama, 1990

• Type locality: Togesawa creek, Azumi, Matsumoto city, Nagano prefecture
• Volcanic rocks
• Eocene
• Intruded by: Takidani Granodiorite

• Lithofacies: Dacite - Rhyolite welded tuff, Pumiceous tuff

• Upper limit: Unconformity (Warudaniyama volcano)

• Distribution: Togesawa creek, Azumi, Matsumoto city, Nagano pref.

• Harayama (1990) Geology of the Kamikochi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 175p. (in Japanese with English abstract 11p.)