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Nanyo Formation (Matsuzawa and Kato, 1954) Furukawa, 1972
- Sedimentary facies (Top): Terrestrial
- Sedimentary facies (Upper): Freshwater, Brackish, Marine
- Sedimentary facies (Lower): Marine
- Sedimentary facies (Upper): Freshwater, Brackish, Shallow inner sea
- Sedimentary facies (Lower): Inner sea, Coastal
- Sedimentary facies (Top): Backmarsh
- Sedimentary facies (Upper): Delta front, Delta plain
- Sedimentary facies (Lower): Prodelta, Tidal flat, Innber bay
- Lithofacies (Top, South): Mud
- Lithofacies (Top, South, Minor): Sand
- Lithofacies (Top, North): Sand
- Lithofacies (Upper): Sand, Interbedded silt and sands
- Lithofacies (Lower): Silt, Clay (Marine clay)
- Lithofacies (Bottom): Finely interbedded sands and mud
- Thickness (Top): 2 - 6 m
- Thickness (Upper): 5 - 20 m
- Thickness (Lower): 5 - 30 m
- Thickness (Bottom): 5 m or thinner
- Lower limit: Unconformity (Nobi Formation, First Gravel Formation)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Nobi plain, Aichi pref.
- Distribution: Nanyo town - Nagoya port, Minato-ku, Nagoya city, Aichi pref.; Tsushima city, Aichi pref.; Sofue town, Inazawa city, Aichi pref.; Miwa town - Jimokuji town - Shippo town, Ama city, Aichi pref.; Oharu city, Ama county, Aichi pref.; Hirata town, Kaizu city, Gifu pref.; Wanouchi city - Anpachi city, Anpachi county, Gifu pref.; Yoro city, Yoro county, Gifu pref.
- Fossils (Shellfishes): Corbicula japonica
- Tephra: Kikai-Akahoya tephra (K-Ah, 7.3 ka), Utsuryo-Oki tephra (U-Oki, 10.7 ka)
- Makinouchi et al. (2013) Jour. Geol. Soc. Japan, vol.119,6 no.5, pp.335-349 DOI
- Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)
- Sakamoto et al. (1986) Geology of the Nagoya-Nambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 55p. (in Japanese with English abstract 3p.)
- Sakamoto et al. (1984) Geology of the Nagoya-Hokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 64p. (in Japanese with English abstract 3p.)
- Takada et al. (1979) Geology of the Tsushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 56p. (in Japanese with English abstract 5p.)