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Minami-aizu Formation Yamamoto and Komazawa, 2004

• Type locality: Odoshima creek - Mount Kamakura, Fuzawa river, Tadami city, Minamiaizu county, Fukushima prefecture
• Coherent formation
• late Miocene

• Sedimentary facies: Terrestrial
• Sedimentary facies: Fluvial, Caldera-overflow pyroclastic flow deposit
• Lithofacies (Fluvial): Sandstone, Siltstone
• Lithofacies (Fluvial, Minor): Lignite
• Sedimentary structures (Fluvial): Ripple laminae, Parallel stratification, Trough cross-stratification

• Thickness: ca. 400 m
• Lower limit: Unconformity (Matsuzakatoge Formation, Fuzawa Formation)

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

• Distribution: Fuzawa, Tadami city, Minamiaizu county, Fukushima pref.; Showa city, Onuma county, Fukushima pref.; Komado pass - Mount Nanatsu, Minamiaizu city, Minamiaizu county,
• Tephra: Odoshimazawa Pyroclastic Flow Deposit, Komadotoge Pyroclastic Flow Deposit

• Yamamoto and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)