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Himi Formation (Mochizuki, 1928) Sakamoto et al., 1959

Invalid synonym: Himi Group

Some reseachers include Omma Formation as a member.

• Coherent formation
• middle Pliocene - middle Pleistocene

• Sedimentary facies: Shallow marine
• Lithofacies: Sandstone
• Lithofacies (Lower): Siltstone, Calcareous sandstone

• Thickness: several - ca. 350 m
• Upper limit: Unconformity (Asahiyama Shell Bed, Udatsuyama Formation, Kamitako Gravel and Clay, Nodera Gravel)
• Lower limit: Unconformity (Ota Formation, Funatsu Granitic Rocks, Otogawa Formation, Horakuji Sandstone Member, Yatsuo Group, Uryu Formation)

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

• Distribution: Ozakai - Himi - Ao - Asahiyama, Himi city, Toyama pref.; Takaoka city - Koyabe city, Toyama pref.; Iiyama town, Hakui city, Ishikawa pref.; Kanazawa city, Ishikawa pref.
• Fossils (Shellfishes): Anadara amicula, Glycymeris yessoensis, Mercenalia stimpsoni, Mya cuneiformis, Patinopecten kurosawaensis, Pseudoamiantis tauyensis, Spisula sachalinensis, Turritella saishuensis, Venericardia ferruginea, Yoldia notabilis
• Tephra: MT2

• Sumi et al. (1989) Geology of the Isurugi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 118p. (in Japanese with English abstract 5p.)
• Sumi (1978) Geology of the Tsubata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 55p. (in Japanese with English abstract 4p.)
• Imai et al. (1966) Geology of the Ochigata and Abugashima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 67p. (in Japanese with English abstract 4p.)
• Imai (1965) Koguchiseto, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 26p. (in Japanese with English abstract 4p.)
• Inoue et al. (1964) Johana, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 32p. (in Japanese with English abstract 5p.)
• Sakamoto (1963) Toyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 45p. (in Japanese with English abstract 6p.)
• 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.)