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Shirasawatengu Rhyolite Ishizawa, 1982
- Type locality: Mount Shirasawatengu, Omachi city, Nagano prefecture
- Volcanic rocks
- Caldera complex
- early Pleistocene (2.2 Ma, FT; 1.4 Ma, K-Ar)
- Intruded by: Sarusuberi Granophyre
- Sedimentary facies: Terrestrial
- Lithofacies: Rhyolite welded tuff
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Shirasawatengu - Yazawa creek - Kotsumetazawa creek - Kurosawa creek, Omachi city, Nagano pref.
- 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.)