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Himizo Formation Yanagisawa et al., 1986
- Type locality: Himizo Uonuma city, Niigata prefecture
- Accretionary complex
- Jurassic?
- Contemporaneous heterotopic facies: Hanegawa Formation
- Intruded by: Quartz porphyry
- Sedimentary facies: Marine
- Lithofacies: Mélange facies
- Matrix: Shale
- Exotic blocks (Upper, Crusts): Chert, Siliceous shale, Greenstone
- Exotic blocks (Lower, Crusts): Chert, Greenstone, Limestone
- Sedimentary structures (Upper): Slump structure, Parallel stratification
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Himizo Uonuma city, Niigata pref.; Yuya - Okuwabara, Minamiuonuma city, Niigata pref.
- Chihara and Komatsu (1992) Geology of the Hakkaisan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 107p. (in Japanese with English abstract 8p.)
- Yanagisawa et al. (1986) Geology of the Ojiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 177p. (in Japanese with English abstract 6p.)