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YmP Sato, 1968

Abbr.: YmP

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

• Lithofacies: Pumice

• Source: Mashu volcano
• Thickness: 260 cm
• Lower limit: Unconformity (KpI)

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

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

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