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Uw-21 Kawamura and Shinohara, 2008

Abbr.: Uw-21

• Type locality: Iwaki, Nishiyamada, Uwa town, Seiyo city, Ehime prefecture
• Tephra
• early - middle Pleistocene
• Correlation: Yufugawa Pyroclastic Flow Deposit? (Yfg, 0.6 Ma, FT)

• Lithofacies: Clayey tuff

• Thickness: 35 cm
• Host: Lower part of Uwa Formation

• Distribution: Iwaki, Nishiyamada, Uwa town, Seiyo city, Ehime pref.

• Kawamura and Shinohara (2008) Jour. Geol. Soc. Japan, vol.114, no.8, pp.415-425 DOI