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Upper part
Invalid synonym: Miike Formation
- Coherent formation
- Pleistocene (ca. 0.85 - 0.6 Ma)
- Correlation: Middle part of Tanaka Formaiton
- Sedimentary facies: Fluvial, Lacustrine
- Sedimentary facies (Minor): Marine
- Climate: Metasequia-deficient stage
- Lithofacies: Gravels, Sands
- Sedimentary structures: Trough cross-stratification, Parallel stratification, Channel structure
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Tenjin town, Takatsuki city, Osaka pref.; Lake Komyoike, Izumi city, Osaka pref.; Saikyo ward, Kyoto city, Kyoto pref.; Komyoji, Nagaokakyo city, Kyoto pref.
- Fossils: Mammuthus shigensis
- Tephra: Ss-Az, Sayama, Imakuma, Hacchoike, Toga, Sakura, Mikita, Guminoki, Kasuri, Wada, Hatta
- Key bed (Marine clay): Ma 3, Ma 4, Ma 5, Ma 6
- Hongo (2009) Jour. Geol. Soc. Japan, vol.115, no.2, pp.64-79 DOI
- Miyachi et al. (2005) Geology of the Kyoto-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 4p.)
- Miyachi et al. (2001) Geology of the Osaka-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 130p. (in Japanese with English abstract 6p.)
- Miyachi et al. (1998) Geology of the Osaka-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 113p. (in Japanese with English abstract 5p.)
- Huzita and Maeda (1985) Geology of the Osaka-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 5p.)
- Huzita and Maeda (1984) Geology of the Suma District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 101p. (in Japanese with English abstract 7p.)
- Huzita and Kasama (1982) Geology of the Osaka-Seihokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 8p.)