[ Top ] [ Japanese ]

Toyohashi Formation

• Coherent formation
• middle Pleistocene

• Sedimentary facies (Top): Seashore
• Sedimentary facies (Upper): Offshore - Shoreface facing open sea
• Sedimentary facies (Lower): Drowned valley - Small bay
• Sedimentary facies (Bottom): Fluvial
• Lithofacies: Gravels, Sands, Mud

• Upper limit: Unconformity (Gumihara Formation)
• Lower limit: Unconformity (Tahara Formation)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: west coast of Lake Hamana, Kosai city, Shizuoka pref. - Atsumi peninsula, Aichi pref.

• Nakashima et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.2, pp.70-79 DOI