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Ata Tephra (Matsumoto, 1943) Aramaki and Ui, 1966

Abbr.: Ata

Invalid synonym: Gamo Pyroclastic Flow Deposit

• Tephra
• Pleistocene (108 ka, K-Ar; 100 ka, FT, 43,910 - 24,500 yBP, ¹⁴C)

• Lithofacies: Tuff, Pyroclastic flow deposit

• Source: Ata caldera, Kagoshima pref., Japan
• Thickness: ca. 10 m
• Lower limit: Unconformity (Kakuto Pyroclastic Flow Deposit)

• Distribution: Kanto region, Honshu island - Kushu islnad, Japan
• Distribution: Yusuki town - Hanao town, Kagoshima city, Kagoshima pref.; Iwato, Koriyama town, Kagoshima city, Kagoshima pref.

• Okuno (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.41-53 DOI
• Uchimura et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.3, pp.95-112 DOI