[ Top ] [ Japanese ]

Akadani Welded Tuff

• Volcanic rocks
• Caldera
• Late Cretaceous - Paleogene
• Correlation: Takadaru Welded Tuff

• Lithofacies: Rhyolite welded tuff

• Thickness: ca. 300 m
• Lower limit: Unconformity (Yamanokuchigawa Welded Tuff, Higashimata-Funayama Welded Tuff, Tsumetadani Formation, Hikodani Welded Tuff)

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

• Distribution: Akadani valley, Shokawa town, Takayama city, Gifu pref.; Tsumetadani valley - Mount Kuraiyama, Ichinomiya town, Takayama city, Gifu pref.; Kiyomi town, Takayama city, Gifu pref.; Maze, Gero city, Gifu pref.; Meiho - Hachiman town, Gujo city, Gifu pref.

• Kawada et al. (1988) Geology of the Hagiwara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 82p. (in Japanese with English abstract 10p.)
• Yamada et al. (1985) Geology of the Takayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 9p.)
• Kawada (1982) Geology of the Mikkamachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 72p. (in Japanese with English abstract 6p.)