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Ata-Th Tephra

Abbr.: Ata-Th

• Tephra
• Pleistocene (238 ka)
• Correlation: Ha-3

• Source: Ata Caldera
• Host: Lower Agatsuma Loam, Kamiizumi Formation, Gumihara Formation

• Distribution: Higashiakasawa town, Toyohashi city, Aichi pref.

• Nakazato and Nakazawa (2007) Jour. Geol. Soc. Japan, vol.113, no.12, pp.628-635 DOI