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Volcanic Fan Deposit Moriya, 1975

• Type locality: Jusangake cliff, Yomase river, Fukazawa, Nakano city, Nagano prefecture
• Volcanic rocks
• Volcanic fan of Kosha volcano and Madarao volcano
• late Pleistocene - Holocene

• Sedimentary facies: Mudflow deposit, Fluvial deposit
• Lithofacies: Breccia
• Lithofacies (Minor): Sands, Volcanic ash, Sandy silt
• Sedimentary structures: Parallel stratification, Imbrication

• Thickness: 100 m or thinner
• Lower limit: Unconformity

• Distribution: Fukazawa - Akaiwa, Nakano city, Nagano pref.; Kijimadaira ski field, Kijimadaira city, Shimotakai county, Nagano pref.

• Akahane et al. (1992) Geology of the Nakano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 106p. (in Japanese with English abstract 4p.)