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(Invalid name) Funabashi Sand Formation Ikebe, 1941

• Coherent formation
• early Pleistocene

• Sedimentary facies: Marine
• Sedimentary facies: Outer shelf, Shoreface
• Sedimentary facies: Submarine banks
• Water temperature: Warm ocean current and cold ocean current became dominant alternately.
• Lithofacies: Sands, Calcareous sandstone
• Sedimentary structures: Parallel stratificaiton, Cross stratification

• Thickness: ca. 20 m

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

• Distribution: Niigata pref.
• Tephra: Og, Ab I

• Kobayashi et al. (1995) Geology of the Kashiwazaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 102p. (in Japanese with English abstract 4p.)
• Kobayashi et al. (1993) Geology of the Izumozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 4p.)