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Kitakama Body

• Volcanic rocks
• Cretaceous
• Intruded by: Ariake Granite
• Correlation: Anagedani Formation

• Lithofacies: Biotite hornblende rhyolite welded tuff
• Lithofacies (Minor): Vitreous tuffs

• Upper limit: Unconformity (Yarisawa Breccia)

• Distribution: Kitakama ridge, Taira, Omachi city, Nagano pref.

• Harayama et al. (1991) Geology of the Yarigatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 190p. (in Japanese with English abstract 8p.)