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Shimonopporo Formation

• Type locality: Nopporo hills, Ebetsu city, Hokkaido
• early - middle Pleistocene

• Sedimentary facies: Marine
• Sedimentary facies: Lagoon at the backside of barrier islands, Inner bay, Lagoon
• Lithofacies (Upper): Sands
• Lithofacies (Lower): Silt

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

• Distribution: Nopporo hills, Ebetsu city, Hokkaido; Ishikari lowland, Hokkaido

• Sagayama et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.8, pp.391-405 DOI