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Hotakubo Sandy Gravel Bed

• Coherent formation
• late Pleistocene

• Sedimentary facies: Fluvial
• Lithofacies: Sand, Gravel

• Lower limit: Unconformity (Aso-4 Pyroclastic Flow Deposit)

• Distribution: Mashiki city, Kamimashiki county, Kumamoto pref.

• Nakazawa et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.5, pp.347-359 DOI