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Shimoaraya Tuff Member

• Volcanic rocks
• middle - late Miocene

• Lithofacies: Andesite tuff breccia, Pumice tuff, Scoria tuff
• Lithofacies (Minor): Tuffaceous sandstone, Siltstone

• Thickness: ca. 10 - 60 m
• Upper limit: Conformity (Takakubo Formation)
• Lower limit: Conformity, partly interfingered (Asagaya Mudstone Member)

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

• Distribution: Shimoaraya - Kamitatsumi town - Sue town - Mitsukoji town - Nukdani, Kanazawa city, Ishikawa pref.
• Fossils: Bivalves, Echinoids

• Imai (1959) Kanazawa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 27p. (in Japanese with English abstract 3p.)