[ Top ] [ Japanese ]
Kamishiro Formation Kato et al., 1989
- Coherent formation
- early - middle Permian
- Deposition (Limestone): early - middle Permian (Foraminifera)
- Deposition (Shale): middle Permian (Radiolarians)
- Intruded by: Porphyrite dykes
- Lithofacies: Basaltic lapilli tuff, Tuff, Chert, Shale
- Lithofacies (Minor): Sandstone, Limestone
- Hida Gaien Belt (Nishina, Nagano pref.)
- [ Upper ]
- /--/--/--/--/-
- Kamishiro Formation
- /--/--/--/--/-
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kamishiro - Takizawagawa river - Narusawa creek - Inukawa river - Sanozaka - Tomione ridge - Nishiuminokuchi, Hakuba city, Kitaazumi county, Nagano pref.; Kurosawa, Omachi city, Nagano pref.
- Fossils (Radiolarians): Follicucullus scholastics, Pseudoalbaillella sp.
- Fossils (Limestone, Foraminifera): Agathammina sp., Climaccammina sp., Endothyra? sp., Globivalvulina sp., Hemigordius sp., Pachyphloia sp., Tetrataxis sp.
- Harayama (2015) Jour. Geol. Soc. Japan, vol.121, no.8, pp.293-308, DOI
- Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)