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Shiitokoro Lava
Volcanic rocks
Pleistocene (1.14 Ma, K-Ar)
Upper limit: Unconformity? (
Sangoku Formation
)
Lower limit: Unconformity? (
Tokorogawa Formation
)
Distribution: Tokachimitsumata basin, Kamishihoro city, Kato county, Hokkaido
Ishii et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.348-365
DOI