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Kataoka Gravel Matsumoto Basin Research Group, 1977

• Type locality: Nagaune, Shiojiri city, Nagano prefecture
• Coherent formation
• middle Pleistocene

• Lithofacies: Gravels

• Distribution: Nagaune, Shiojiri city, Nagano pref.; Nakayama - Shiroyama, Matsumoto city, Nagano pref.; Hotaka, Azumino city, Nagano pref.
• Tephra: APm

• Harayama et al. (2009) Geology of the Matsumoto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 3p.)