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Gongendake Pyroclastic Rocks

• Volcanic rocks
• Pleistocene
• Intruded by: Dykes

• Lithofacies: Scoria agglomerate, Agglomerate, Volcanic breccia
• Lithofacies (Minor): Lava (ca. 40 flow units), Volcanic ash

• Thickness: 700 m
• Thickness (A unit): 0.5 - 15 m
• Upper limit: Unconformity (Kannondaira Lava)
• Lower limit: Unconformity (Shinkyojisan Lava)

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

• Distribution: Mount Gongendake, Fujimi city, Suwa county, Nagano pref. - Hokuto city, Yamanashi pref.

• Kawachi (1977) Geology of the Yatsugatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 92p. (in Japanese with English abstract 4p.)