[ Top ] [ Japanese ]
Futagawa Formation
Invalid synonym: Hosoya Group
- Type locality: Hosoya town, Toyohashi city, Aichi prefecture
- Coherent formation
- middle Pleistocene
- Sedimentary facies: Marine
- Sedimentary facies (Upper): Offshore, Foreshore
- Sedimentary facies (Lower): Valley-fill deposit
- Lithofacies (Upper): Sands, Gravels
- Lithofacies (Lower): Sands, Gravels, Mud
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Hosoya town - Kojima town - Takatsuka town - Shiroshita town, Toyohashi city, Aichi pref.; Nishihamada, Mutsure town, Tahara city, Aichi pref.; west coast of Lake Hamana, 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