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Otarunaigawa Formation

Invalid synonym: Teine Formation

• Volcanic rocks
• middle Miocene (ca. 12 Ma or earlier)

• Lithofacies: altered Dacite

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

• Distribution: Otaru city, Hokkaido; Teine, Sapporo city, Hokkaido

• Nishina et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.5, pp.387-402 DOI
• Miyasaka et al. (2007) Jour. Geol. Soc. Japan, vol.113, Supplement, pp.19-28 DOI