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Hata Gravel Bed Kobayashi, 1951

• Type locality: Kusarigawa river, Imai, Matsumoto city, Nagano prefecture
• Coherent formation
• late Pleistocene (40 - 27 ka)

• Lithofacies: Gravels

• Upper limit: Unconformity (Osakada Loam, Hata Loam)

• Distribution: Kusarigawa river - Hata - Nakayama - Tanamine, Matsumoto city, Nagano pref.

• 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.)
• Kato and Sato (1983) Geology of the Shinano-Ikeda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 7p.)