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Kirihata Tuff Member
- Lithofacies: Andesite - Dacite tuff
- Lithofacies (Lower, Minor): Sandstone, Mudstone, Tuff breccia
- Structures (Upper): Columnar joint
- Thickness (Lower): 100 m or thicker
- Lower limit: Conformity (Mudstone), Unconformity (Granite)
- Yosa Group (western Miyazu, Kyoto pref.)
- [ Upper ]
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- Kirihata Tuff Member
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Hijiyamatoge pass, Kumihama town - Mineyama town, Kyotango city, Kyoto pref.; Amino - Shinjo - Kirihata, Amino town, Kyotango city, Kyoto pref.
- Hirokawa and Kuroda (1960) Miyazu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 23p. (in Japanese with English abstract 6p.)