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Upper Pumice Tuff Member Ishii et al., 1982
Invalid synonym: Nobiru Tuff, Satoura Tuff
- Type locality: Mount Otakamori, Miyato island - Kameoka, Higashimatsushima city, Miyagi prefecture
- Type locality: Isozaki, Matsushima island, Miyagi county, Miyagi prefecture
- Volcanic rocks
- Miocene
- Sedimentary facies: Marine
- Sedimentary facies: Pyroclastic flow deposit
- Lithofacies: Acidic pumice tuff
- Lithofacies (Minor): Tuffaceous sandstone, Siltstone
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Otakamori, Miyato island - Kameoka, Higashimatsushima city, Miyagi pref.; Isozaki - Furuura - Takagi river - Nono island - Mahanashi island, Matsushima city, Miyagi county, Miyagi pref.
- Fossils (Shellfishes): Dentalium sp., Pectinidae gen. et sp. indet
- Ishii et al. (1983) Geology of the Shiogama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 6p.)
- Ishii et al. (1982) Geology of the Matsushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 9p.)