[ Top ] [ Japanese ]
Tsurukawa Formation (Tokunaga et al., 1949) Takano, 1994
- Sedimentary facies: Shallow marine
- Sedimentary facies: Tidal, Sublittoral - Lower sublittoral
- Sedimentary facies (Minor): Debris flow deposit
- Lithofacies: Silt, Silt-dominant interbedded sands and silt
- Lithofacies (Minor): Gravels, Sand-dominant interbedded sands and silt
- Sedimentary structures: Slump structures, Parallel stratification
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kanai town - Zushi town - Okura town - Tamagawagakuen, Machida city, Tokyo; Okagami, Asao ward, Kawasaki city, Kanagawa pref.; Kamikawai town, Asahi ward, Yokohama city, Kanagawa pref.
- Fossils: Elephants, Fishes (Otoliths), Foraminifera
- Fossils (Shellfishes): Acila insignis, Buccinum perryi, Cultellus sp., Dosinia sp., Limopsis sp., Macoma tokyoensis, Nuculana sp., Ostrea gigas, Ostrea laperousi, Pecten triblium, Pecten yessoensis, Pinna sp., Protothaca cf. adamsi, Raeta? sp., Solamen sp., Solen sp., Turritella nipponica, Venericardia ferruginea
- Tephra: Sr-Kmd, H 2, Tr 3, Tr 4, KK
- Suzuki et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.7, pp.343-356, DOI
- Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)
- Suzuki and Murata (2011) Jour. Geol. Soc. Japan, vol.117, no.7, pp.379-397 DOI
- Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)