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Nomata Formation Katada and Isomi, 1964

• Type locality: Nomatazawa creek, Asahi city, Higashichikuma county, Nagano prefecture
• Accretionary complex
• Jurassic

• Sedimentary facies: Marine
• Lithofacies: Interbedded sandstone and mudstone
• Sedimentary structures: Graded bedding

• Thickness: ca. 1,000 m
• Upper limit: Bottom of the horizon of sandstone including slate fragments
• Upper limit: Transitional (Hata Formation)
• Lower limit: Top of the horizon of thick chert and siliceous slate
• Lower limit: Conformity (Hario Formation)

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

• Distribution: Nomatazawa creek, Asahi city, Higashichikuma county, Nagano pref.
• Fossils (Trace fossils): Helminthoidea isp.

• Katada and Isomi (1964) Shiojiri, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 52p. (in Japanese with English abstract 10p.)