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Aoki Lacustrine Terrace Deposits (Horie, 1954)

Invalid synonym: Koaokiko Formtion

• Coherent formation
• Pleistocene

• Sedimentary facies: Lacustrine terrace deposit
• Lithofacies: Gravels

• Distribution: Lake Aokiko - Lake Nakatsunako, Omachi city, Nagano pref.
• Fossils (Diatoms): Cymbella sp., Diplonesi ovalis, Melosira italica, Navicula pupula, Pinnularia sp.

• Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)