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Kada Formation (Ishigami and Yoshimatsu, 1972) Miyata et al., 1993

Invalid synonym: Misaki Formation, Kyoshi Formation, Hakotsukuri Formation

• Type locality (Upper Member): Fuke - Kyoshi, Misaki city, Sennan county, Osaka prefecture
• Type locality (Lower Member): Miyama - Kada, Wakayama city, Wakayama prefecture
• Coherent formation
• Izumi sedimentary basin
• Forearc basin associated with strike-slip fault related to Median Tectonic Line
• Late Cretaceous, Maastrichtian (77.1, 72.6 Ma, FT)
• Interfingered: Azenotani Mudstone Member

• Sedimentary facies: Main filling of the sedimentary basin
• Lithofacies: Turbidite, Channel deposit
• Lithofacies: Depositional mega-unit, Channel-fill deposit, Distributary channel deposit, Sheet-like turbidite
• Lithofacies (Upper): Interbedded sandstone and mudstone
• Lithofacies (Lower): Interbedded sandstone and mudstone, Interbedded conglomerate, sandstone and mudstone
• Sedimentary structures (Lower): Sole marks, Slump structures

• Thickness: 4,500 m or thicker

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

• Distribution: Fuke - Kyoshi - Tanagawa - Misaki park - Cape Toyokunizaki, Misaki city, Sennan county, Osaka pref.; Hakotsukuri - Meshinominehata, Hannan city, Osaka pref.; Mutuso, Sennan city, Osaka pref.; Miyama - Kada - Cape Takurazaki - Cape Sumiyoshizaki - Umehara - Otani, Wakayama city, Wakayama pref.
Fossils: Ammonoids (Baculites sp.), Echinoids, Shellfishes (Acila sp., Inoceramus cf. balticus toyajoanus, Inoceramus orientalis, Inoceramus regularis, Leionucula azenotanensis, Portlandia sp.), Plants (Cuninghamia izumiensis, Ficus sp., Zamites sp.), Achaeozostera sp.
• Tephra (Upper): t5, t6, t7 (72.6 Ma, FT)
• Tephra (Lower): t1 (77.1 Ma, FT), t2, t3, t4

• Miyata et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.37-52 DOI
• Makimoto et al. (2004) Geology of the Kokawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 89p. (in Japanese with English abstract 4p.)
• Miyata et al. (1993) Geology of the Wakayama and Ozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 68p. (in Japanese with English abstract 4p.)
• Itihara et al. (1986) Geology of the Kishiwada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)