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Dosaiyama Conglomerate Member
Invalid synonym: Nakajima Conglomerate Member, Ofuchi Formation
- Coherent formation
- Cretaceous
- Intruded by: Gabbro, Diorite
- Sedimentary facies: Brackish
- Lithofacies (Upper): Conglomerate
- Lithofacies (Middle): Interbedded conglomerate and shale, Interbedded sandstone and shale
- Lithofacies (Lower): Conglomerate
- Lithofacies (Lower, Minor): Sandstone, Shale
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Amagashiradani valley - Kawai - Tomedoro - Otani - Mochiana - Nagano - Katsurajimagawa river - Yugami - Shimoyama - Yanbara - Hakogase - Fujikuradani valley - Mount Dosaiyama - Nakajima - Shimoise - Kuzawagawa river, Ono city, Fukui pref.
- Fossils (Shellfishes): Batissa antiqua, Batissa yokoyamai, Corbicula (Mesocorbicula) tetoriensis, Corbicula (Tetoria) antiqua, Melanoides vulgaris, Melanoides vulgaris minimus, Nakamuranaia ? sp., Ostrea sp., Polymesoda (Isodomella) sp., Trigonioides sp., Viviparis (Sinotaia?) onogoensis, Volsella? sp.
- Fossils (Plants): Equisetites ushimarensis, Cladophlebis cf. argutula, Cladophlebis denticulata, Cladophlebis distans, Cladophlebis exiliformis, Cladophlebis hukuiensis?, Czecamoswkia rigida, Dictyozamites cf. kawasakii, Gleichenites nipponensis, Nilssonia orientalis, Onychiopsis elongata, Podozamites griesbachi, Podozamites lanceclatus, Pseudocycus? acutifolia, Sphenopteris cf. goepperti
- Kawai (1964) Neo, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 66p. (in Japanese with English abstract 12p.)
- Kawai et al. (1957) Arashimadake, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 110p. (in Japanese with English abstract 13p.)