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WTfl-1 Sumida, 1996

Abbr.: WTfl-1

• Type locality: Shari city, Shari county, Hokkaido
• Tephra
• Pleistocene
• Correlation: Nu-a

• Sedimentary facies: Pyroclastic flow deposit
• Lithofacies: Pumice
• Lithofacies (Matrix): Tuff

• Source: Mashu volcano
• Thickness: ca. 5 cm
• Upper limit: Unconformity (WTfl-2)
• Lower limit: Unconformity (KuSc)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Konan, Kiyosato city, Shari county, Hokkaido; Shari city - Koshimizu city, Shari county, Hokkaido

• Hasegawa et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.8, pp.369-390 DOI