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Koshigoe Welded Tuff Nishikawa et al., 1979
- Volcanic rocks
- Cretaceous
- Sedimentary facies: Pyroclastic flow deposit
- Lithofacies: Biotite rhyolite welded tuff
- Lithofacies (Minor): Tuff, Sandstone, Conglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Kinugasayama - Minamikoshigoe - Miyazu, Azuchi town, Omihachiman city, Shiga pref.; Ishibaji temple - Kawanami, Higashiomi city, Shiga pref.
- Yoshida et al. (2003) Geology of the Omi-Hachiman District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 3p.)
- Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)