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Atsumi Group Kuroda, 1958
Invalid synony: Atsumi Formation, Nishihamana Formation
- Type locality: Atsumi peninsula, Aichi prefecture
- Coherent formation
- middle Pleistocene
- Sedimentary facies: Marine, Fluvial
- Lithofacies: Gravels, Sands, Mud
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Takatsuka town - Ikobe town - Higashiakasawa town - Nishiakasawa town, Toyohashi city, Aichi pref.; Akabane town, Tahara city, Aichi pref.; Iride - Shinjo - Washizu - Arai, Kosai city, Shizuoka pref.
- Nakashima et al. (2008) Geology of the Toyohashi and Tahara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 113p. (in Japanese with English abstract 3p.)
- Nakashima et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.2, pp.70-79 DOI
- Isomi and Inoue (1999) Geology of the Hamamatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 35p. (in Japanese with English abstract 4p.)