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Sengataki Lava
- Type locality: Sengataki fall, Somasoe river, Minamimaki city, Minamisaku county, Nagano prefecture
- Volcanic rocks
- Pleistocene
- Lithofacies: Olivine-bearing hypersthene augite andesite lava
- Upper part
- [ Upper ]
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- Sengataki Lava
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- [ Lower ]
- Nobeyamahara Formation
- [ Upper ]
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- Upper part
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- Middle part
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- Lower part
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Sengataki fall, Somasoe river, Minamimaki city, Minamisaku county, Nagano pref.
- Kawachi (1977) Geology of the Yatsugatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 92p. (in Japanese with English abstract 4p.)