[ Top ] [ Japanese ]

Ojirogawa Mudflow Deposit

• Type locality: Ojirogawa river, Hanamizu, Hokuto city, Yamanashi prefecture
• Type locality: Kokkai bridge, Fujimi city, Suwa county, Nagano prefecture
• Coherent formation
• middle Pleistocene

• Lithofacies: Mudflow deposit

• Thickness: 10 m or thicker
• Upper limit: Unconformity (Kyoraishi Formation)
• Lower limit: Unconformity (Momonoki Subgroup)

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

• Distribution: Ojirogawa river, Hanamizu, Hokuto city, Yamanashi pref.; Kokkai bridge, Fujimi city, Suwa county, Nagano 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.)