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Abesan Formation

• Volcanic rocks
• Late Cretaceous

• Lithofacies (Upper): Rhyolite lava
• Lithofacies (Lower): Interbedded tuffaceous mudstone and Tuff

• Thickness (Upper): ca. 100 m
• Thickness (Lower): ca. 150 m
• Lower limit: Unconformity (Kokasan Formation, Mino Belt)

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

• Distribution: Mount Abesan, Horado, Seki city, Gifu pref.

• Wakita (1984) Geology of the Hachiman District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 6p.)