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Katajiyama Formation

• Volcanic rocks
• Late Cretaceous

• Lithofacies (Upper): Rhyolite welded tuff
• Lithofacies (Lower): Tuffaceous sandstone, Mudstone
• Lithofacies (Lower, Minor): Conglomerate, Pumice tuff, Dacite lava

• Thickness (Upper): 450 m or thicker
• Thickness (Lower): ca. 200 m
• Lower limit: Unconformity (Kokasan Formation)

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

• Distribution: Katachigawa river - Mount Fukubegadake - Mount Katajiyama, Mino city, Gifu pref.

• Wakita (1995) Geology of the Mino District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 36p. (in Japanese with English abstract 3p.)