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Ninosawa Formation Suzuki, 1964
Invalid synonym: Myojingatake Andesite Member, Matsuzawa Sandstone and Mudstone Member
- Sedimentary facies: Marine
- Depth of water: Outer coastal - Upper bathyal
- Lithofacies: Sandstone, Siltstone
- Lithofacies (Minor): Orthopyroxene clinopyroxene andesite tuff breccia, Volcanic conglomerate, Volcanic sandstone, Biotite - hornblende rhyolite volcanic conglomerate, Volcanic sandstone, Dacite
- Sedimentary structures: Graded bedding, Reversed graded bedding, Planar cross-stratification, Low angle cross-stratification
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Ninosawa river, Numanotaira, Kitakata city, Fukushima pref.; Oshio - Hosono pass, Kitashiobara city, Yama county, Fukushima pref.; Ginzan pass, Yanaizu city, Kawanuma county, Fukushima pref.; Takiya - Yotsuya, Mishima city, Onuma county, Fukushima pref.; Futamatagawa, Tenei city, Iwase county, Fukushima pref.; Matsuzawa, Aizumisato city, Onuma county, Fukushima pref.
- Fossils: Shellfishes, Bernacles
- Fossils (Foraminifera): Ammonia takanabensis, Amphicoryna scalaris, Baggina notoensis, Bolivina robusta, Bulimina striata, Cassidulina carinata, Cibicides malloryi, Cibicides pseudoungrianus, Cibicidoides mediocris, Elphidium sendaiense, Frondicularia notoensis, Globigerina angustiumbilicata, Globigerina decoraperta, Globigerina druryi, Globigerina falconensis, Globigerina foliata, Globigerina praebulloides praebulloides, Globigerina praebulloides pseudociperoensis, Globigerina woodi, Globigerinella obesa, Globigerinita glutinata, Globigerinoides immaturus, Globigerinoides trilobus, Globobulimina spp., Globocassidulina subglobosa, Globoquadrina dehiscens, Globoquadrina venezuelana, Globorotalia continuosa, Globorotalia mayeri, Globorotalia miozea, Globorotalia peripheroronda, Globorotalia praemenardii, Globorotalia praescitula, Globorotalia quinifalcata, Globorotalia scitula praescitula, Islandiella japonica, Lenticulina nikobarensis, Lenticulina pseudorotulata, Martinottiella communis, Melonis pompilioides, Nodosaria longiscata, Nonionellina sp., Nonion japonica, Orbulina suturalis, Orbulina universa, Parafissurina? sp., Pelectofrondicularia interrupta, Pullenia quinqueloba, Rutherfordoides bradyi, Sigmomorphina notoensis, Sphaeroidinellopsis seminulina, Trifarina kokozuraensis, Uvigerina proboscidea, Valvulineria sadonica
- Fossils (Calcareous nannofossils): Calcidiscus leptoporus, Calcidiscus macintyrei, Coccolithus pelagicus, Cyclicargolithus floridanus, Discoaster adamanteus, Discoaster intercalaris, Discoaster variabilis, Helicosphaera californiana, Helicosphaera carteri var. carteri, Lithostromation perdurum, Neosphaera coccolithomorpha, Pontosphaera multipora, Pontosphaera sp., Reticulofenestra gelida, Reticulofenestra haqii, Reticulofenestra minuta, Reticulofenestra minutula, Reticulofenestra perplexa, Reticulofenestra producta, Reticulofenestra pseudoumbilica, Sphenolithus compactus, Sphenolithus heteromorphus, Sphenolithus moriformis, Umbilicosphaera sp.
- Tephra: Tochu Tuff
- Furukawa et al. (2018) Geology of the Azuma Yama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 74p. (in Japanese with English abstract 3p.)
- Hasegawa et al. (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.33-48 DOI
- Yamamoto et al. (2006) Geology of the Kitakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 5p.)
- Yamamoto and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)
- Yamamoto and Yoshioka (1992) Geology of the Wakamatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)