[ Top ] [ Japanese ]
Arimine Formation Kawai, 1955
Invalid synonym: Arimine Shale
- Type locality: Higashisakamori valley, Arimine, Toyama city, Toyama prefecture
- Coherent formation
- Late Jurassic, Oxfordian - Kimmeridgian (Ammonoids)
- Correlation: Kiritani Formation
- Sedimentary facies: Marine
- Sedimentary facies: Inner bay (Fossils)
- Depth of water: Shallow
- Lithofacies (Upper): Shale, Shale-dominant interbedded sandstone and shale
- Lithofacies (Lower): Sandstone-dominant interbedded sandstone and shale
- Lithofacies (Lower, Minor): Conglomerate
- Lithofacies (Minor): Felsic volcanic rocks, Andesite (Arimine Acidic Volcanic rocks)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Higashisakamori valley - Inone valley - Mount Yakushidake - east slope of Yakushidaira - Iwaitani valley - Magawa river, Arimine, Toyama city, Toyama pref.
- Fossils: Belemnite, Radiolarians
- Fossils (Bivalves): Camptonectes sp., Grossovia? sp., Inoceramus sp., LIma sp., Myophorella (Promyophorella) hidensis, Myophorella (Promyophorella) magawensis, Myophorella (Promyophorella) tetoriensis, Myophorella (Promyophorella) toyamensis, NNerinea sp., ipponitrigonia kobayashii, Nuculana sp., Pinna sp., Posidonomya sp., Vaugonia ariminensis
- Fossils (Ammonoids): Ataxioceras aff. torquatus, Kranaosphinctes sp., Lithacoceras, Perisphinctes (Kranaosphinctes) matsushimai
- Fossils (Plants): Cladophlebis sp., Ferns, Ginkgodium? sp., Onychiopsis elongata, Podozamites? sp., Sphenopteris? sp.
- Fossils (Trace): Burrows (Skolithos-type, Planolites-type)
- Matsukawa et al. (2014) Jour. Geol. Soc. Japan, vol.120, no.5, pp.147-164 DOI
- Hirasawa et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.103-121 DOI
- Harayama et al. (1991) Geology of the Yarigatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 190p. (in Japanese with English abstract 8p.)
- Nozawa and Sakamoto (1960) Gohyakkoku, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 68p. (in Japanese with English abstract 10p.)
- Kawai and Nozawa (1958) Higashimozumi, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 76p. (in Japanese with English abstract 10p.)