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Oda Base Surge Deposits Hattori et al., 1983

Invalid synonym: Oda Tephra, Kidaniike Pumice Fall Deposits, Noma Pumice Fall Deposits

• Type locality: Oda - Kataudenomatsu - Kube, Sanbe town, Oda city, Shimane prefecture
• Tephra
• Pleistocene

• Lithofacies: Hornblende biotite dacite pumice, Lithic fragments
• Sedimentary structures: Antidune, Cross stratification
• Paleocurrent: from North-northeast - Northeast

• Source: southwestern part of Sanbe caldera
• Thickness: ca. 3 - 4 m
• Upper limit: Conformity (Oda Pyroclastic Flow Deposits), Unconformity (Sanbe Pumice Fall Deposits)
• Lower limit: Unconformity (Uyama Base Surge Deposits)

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

• Distribution: Oda - Kataudenomatsu - Kube - Meotomatsu, Sanbe town, Oda city, Shimane pref.

• Hattori et al. (1983) Geology of the Sambesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 168p. (in Japanese with English abstract 7p.)