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Suzugasawa Welded Tuff Collaborative Research Group for the Nohi Rhyolite, 1973

• Type locality: Suzugasawa creek, Otakigawa river, Otaki city, Kiso county, Nagano prefecture
• Volcanic rocks
• Caldera
• Late Cretaceous - Paleogene (58.2 Ma, FT)

• Lithofacies: Rholite welded tuff, Rhyolitic dacite welded tuff

• Thickness: ca, 130 - 180 m
• Distribution (East - West): ca. 2.5 km
• Distribution (South - North): ca. 2.5 km
• Lower limit: Conformity (Senzawa Welded Tuff), �s���� (Shimashima Complex)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Suzugasawa creek, Otakigawa river - Denjogawa river, Otaki city, Kiso county, Nagano pref.

• Yamada and Kobayashi (1988) Geology of the Ontakesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 9p.)
• Kawada et al. (1988) Geology of the Hagiwara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 82p. (in Japanese with English abstract 10p.)
• Yamada et al. (1985) Geology of the Takayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 9p.)