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Arai Mud Member

• Coherent formation
• middle Pleistocene

• Lithofacies: Mud

• Upper limit: Unconformity (Toshima Sand and Gravel Member)
• Lower limit: Conformity (Hosoya Sand Member)

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

• Distribution: west coast of Lake Hamana, Kosai city, Shizuoka pref.
• Tephra: At-2

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