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Aira Formation

• Coherent formation
• Pleistocene

• Sedimentary facies: Fluvial, Lacustrine
• Lithofacies: Sandstone, Conglomerate, Mudstone

• Distribution: Kagoshima pref.
• Fossils: Plants, Diatoms
• Tephra: Kenashino Tephra, Fukaminato Tephra (Arasaki Tephra), Otsuka Tephra, Aso-4 Pyroclastic Flow Deposit, Kikai-Tozuhara Tephra, Fukuyama Tephra

• Uchimura et al. (2014) Jour. Geol. Soc. Japan, vol.120, Supplement, pp.127-153 DOI