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Ak9-c Tephra Hasegawa and Nakagawa, 2007

Abbr.: Ak9-c

• Type locality: Upper reaches of Kuchoro river, Tsurui city, Akan county, Hokkaido
• Tephra
• Pleistocene

• Sedimentary facies: Terrestrial
• Lithofacies: Pumice fall deposit

• Source: Akan volcano
• Thickness: ca. 1 m
• Upper limit: Unconformity (Ak9-b)
• Lower limit: Unconformity (Tokachimitsumata Pyroclastic Flow Deposit)

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

• Distribution: Upper reaches of Kuchoro river, Tsurui city, Akan county, Hokkaido

• Hasegawa et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.366-381 DOI
• Hasegawa and Nakagawa (2007) Jour. Geol. Soc. Japan, vol.113, no.2, pp.53-72 DOI