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Shiraki Group

Invalid synonym: Shirataki Group

• Accretionary complex
• Deposition (Limestone): late Carboniferous - middle Permian (Fusulinids)
• Deposition (Chert): Permian
• Deposition (Siliceous mudstone): Middle Jurassic
• Deposition (Mudstone): Middle Jurassic, Bajocian - Bathonian (Radiolarians)
• Correlation: Kamiyoshida Unit

• Sedimentary facies: Marine
• Lithofacies: Mélange facies
• Matrix (Main): Interbedded sandstone and mudstone, Sandstone
• Matrix (Minor): Mudstone, Siliceous tuff
• Exotic blocks (Crusts, Main): Basalt (Reddish purple), Chert
• Exotic blocks (Crusts, Minor): Limestone, Siliceous mudstone

• Thickness (Basalt): 600 m or thinner
• Thickness (Chert): 350 m or thinner
• Thickness (Sandstone): 200 m
• Upper limit: Thrust fault
• Lower limit: Unknown

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

• Distribution: Shiraki village, Toba city, Mie pref.; Kamiji dam -Tsuiji, Isobe village, Shima city, Mie pref.; Koraibiro, Imazaike village, Ise city, Mie pref.
• Distribution (Shirataki Group): Shirataki, Kirihara, Minamiise city, Watarai county, Mie pref.
• Fossils: Fusulinids
• Fossils (Shirataki Group): Corals (Clisiophyllum awa), Fusulinids (Acervoschwagerina sp., Eoparafusulina tchernyschewi), Radiolarians (Albaillella? sp., Follicucullus sp., Striatojaponocapsa cf. plicarum, Eucyrtidiellum sp.)

• Uchino and Suzuki (2017) Jour. Geol. Soc. Japan, vol.123, no.12, pp.1015-1033 DOI
• Uchino and Suzuki (2016) Jour. Geol. Soc. Japan, vol.122, no.5, pp.207-222, DOI