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Misawa Formation (Nakamura, 1913) Kubo et al., 2002
Invalid synonym: Misawa Sandstone Member of Taira Formation, upper part of Taira Formation
- Type locality: Misawa town, Iwaki city, Fukushima prefecture
- Coherent formation
- southern Yezo Forearc basin (Jobanoki basin)
- early Miocene
- Sedimentary facies: Marine, Fluvial
- Sedimentary facies (Upper): Flood plain?
- Sedimentary facies (Lower): Submarine fan
- Lithofacies (Upper): Sandstone Conglomerate, Gravelly sandstone
- Lithofacies (Lower): Interbedded gravelly sandstone and siltstone, Turbidite
- Sedimentary structures (Upper): Parallel stratification, Cross stratification
- Sedimentary structures (Lower): Graded bedding, Low angle cross-stratification
- Sedimentary structures: Slump structure
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Misawa town, Iwaki city, Fukushima pref.; Hisanohama - Suetsugi, Hisanohama village, Iwaki city, Fukushima pref.; Narukouchi, Naraha city, Futaba county, Fukushima pref.; Yatsuaka, Taira, Iwaki city, Fukushima pref.; Mount Ishimori, Iwaki city, Fukushima pref.; Sayado, Yotsukura town, Iwaki city, Fukushima pref.; Yusuji, Hirono city, Futaba county, Fukushima pref.
- Fossils (Upper): Daijima-type flora, Wood roots
- Ando et al. (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.49-67 DOI
- Kubo et al. (2002) Geology of the Kawamae and Ide District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 136p. (in Japanese with English abstract 6p.)
- Iwao and Matsui (1961) Taira and Kawamae, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 17p.)