[ Top ] [ Japanese ]
Dainenji Formation (Yabe, 1926) Iwai, 1949
Invalid synonym: Dainenji Shell Bed, Dainenjiyama Shell Bed, Hirono Formation, Tomioka Formation, Imosawagawa Formation, Doyabara Formation, Kayaba Formation, Nakamura Formation, Karasuzaki Formation, Anyoji Formation, Ishikura Formation, Fujigai Formation
- Sedimentary facies: Marine, Terrestrial
- Sedimentary facies: Inner bay
- Sedimentary facies (Upper): Outer shelf, Upper continental slope (Diatoms)
- Sedimentary facies (Lower): Inner shelf, Seashore
- Water temperature: Cold water
- Lithofacies (Upper): Turbidite
- Lithofacies (Upper): Interbedded siltstone and sandstone
- Lithofacies (Upper, Minor): Lingite
- Lithofacies (Lower): Sandstone, Conglomerate
- Sedimentary structures (Upper): Graded bedding, Slump structure
- Sedimentary structures: Planar cross-stratification, Trough cross-stratification, Bioturbation, Pipe rocks
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shionosawa - Imozawa - Kawamae- Imozawa river, Aoba ward, Sendai city, Miyagi pref.; Dainenjiyama, Monzen town, Taihaku ward, Sendai city, Miyagi pref.; Natori river, Kumanodo, Takadate, Natori city, Miyagi pref.; Ide, Naraha city, Futaba county, Fukushima pref.; Yusuji seashore - Sakurada - Yamadaoka, Hirono city, Futaba county, Fukushima pref.; Kitakayakura, Soma city, Fukushima pref.; Iwasawa - Okugai - Tatsuta - Ide river, Naraha city, Futaba county, Fukushima pref.
- Fossils: Stegodon zdanskyi (Originally described as Stegodon insignis, Teeth), Seals, Whales, Baleen whales (Mysticeti gen. et sp. indet), Roughscale sp., Sharks, Solitary corals (Caryophyllia sp.)
- Fossils (Trace fossils): Rosselia isp., Boring shells
- Fossils (Shellfishes): Acharax tokunagai, Acila (Acila) divaricata, Acila (Truncacila) insignis, Anadara amicula elongata, Ancistrolepsis trochoideus, Callithaca adamsi, Clinocardium cfr. hataii, Clinocardium nomurai, Conchocele disjuncta, Crassostrea gigas, Cryptonatica janthostomoides, Cyclocardia ferruginea, Dentalium cfr. weinkauffi, Dosinia japonica, Fortipecten takahashii, Fusitriton oregonensis, Glycymeris cfr. nakamurai, Glycymeris yamaguchii, Glycymeris (Glycymeris) yessoensis, Gramatoma sp., Lucinoma acutilineata, Macoma sp., Mercenaria chitaniana, Mercenaria cf. yokoyamai, Minolia pseudobscura, Mizuhopecten ibaragiensis, Mizuhopecten planicostulata, Mizuhopecten yessoensis, Mya japonica, Neptunea sp., Neverita (Glossaulax) didyma, Nucula tenuis, Olivella fortunei, Portlandia (Portlandia) japonica, Pyrene bouchardi, Siphonalia cfr. fusoides, Solen grandisi, Spisula polynyma voyi, Tectonatica janthostomoides, Turritella ikebei, Umbonium (Suchium) giganteum yamamotoi, Venericardia (Cyclocardia) ferruginea
- Fossils (Dainenji flora): Alnus sp., Fagus sp., Picea sp., Sequoia sp.
- Fossils (Foraminifera): Bucella sp., Elphidiella hannai, Globoquadrina altispira, Globorotalia crassoformis, Globorotalia inflata, Globorotalia cf. tosaensis, Pulleniatina primalis, Sphaeroidinellopsis seminulina
- Fossils (Diatoms): Actinocyclus ehrenbergii, Actinocyclus octonarius, Actinoptychus senarius, Actinoptychus splendens, Actinoptychus undulatus, Arachuoidiscis ehrenbergii, Aulacosira granulata, Auliscus caelatus, Cocconeis costata, Cocconeis scutellum, Coscinodiscus marginatus, Cyclotella comta, Cyclotella meneghiniana, Delphineis simonsenii, Denticulopsis praedimorpha, Diploneis smithii, Epithemia cf. sorex, Gomphonema sp., Grammatophora sp., Gylosigma sp., Hyalodiscus obsoletus, Koizumia tatsunokuchiensis, Navicula sp., Neodenticula kamtschatica, Neodenticula koizumii, Nitzchia fossilis, Nitzschia granulata, Nitzschia jouseae, Nitzschia punclata, Nitzschia reinholdii, Opephora sp., Paralia sulcata, Pinilaria cf. gibba, Plagiogramma staurophorum, Proboscia barboi, Pseudopodosira elegans, Rhaphoneis surirella, Rossiella paleacea var. paleacea, Rossiella tatsunokuchiensis, Stephanopyxis sp., Thalassionema nitzschioides, Thalassiosira antiqua, Thalassiosira convexa, Thalassiosira gravida, Thalassiosira jacksonii, Thalassiosira leptopus, Thalassiosira marujamica, Thalassiosira nidulus, Thalassiosira oestrupii, Trachyneis aspera
- Fossils (Radiolarians): Ommatarus tetrathalamus, Sphaeropyle langii, Stichocorys peregrina
- Fossils (Calcareous nannofossils): Discoaster tamalis, Emiliania annula, Emiliania ovata, Reticulofenestra gelida, Reticulofenestra pseudoumbilica, Sphenolithus abies, Sphenolithus neoabies
- Tephra: 101 sheets
- Miyamoto et al. (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.27-46 DOI
- Fujiwara et al. (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.96-119 DOI
- 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.)
- Yanagisawa et al. (1996) Geology of the Somanakamura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 9p.)
- Kubo et al. (1994) Geology of the Namie and Iwaki-Tomioka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 104p. (in Japanese with English abstract 7p.)
- Kubo et al. (1990) Geology of the Haramachi and Omika District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)
- Kitamura et al. (1986) Geology of the Sendai District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 134p. (in Japanese with English abstract 9p.)