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Yanagisawa Mudflow Deposit (Yagi, 1943)

• Type locality: Yanagisawa, Shinonoi, Nagano city, Nagano prefecture
• Coherent formation
• middle Pleistocene

• Sedimentary facies: Mudflow deposit, Land-slide deposit

• Thickness: ca. 20 m
• Lower limit: Unconformity (Hijiriyama Andesite, Ronji Formation, Susobana Formation)

• Distribution: Yanagisawa - Utabi - Okada - Seharada - Shimoishikawa, Shinonoi, Nagano city, Nagano pref.

• Kato and Akahane (1986) Geology of the Nagano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 120p. (in Japanese with English abstract 5p.)