Figure F7. Geochemical comparison between tephra Sample 186-1150A-2H-5, 136-138 cm, and selected widespread late Quaternary tephras from terrestrial sites. Correlation with the ~40-ka SpFa-1 tephra erupted from the Shikotsu caldera in Hokkaido is possible. On-land and other possibly correlative marine tephra analyses depicted in this figure are taken from Cadet and Fujioka (1980), Fujioka et al. (1980), Furuta and Arai (1980a, 1980b), Machida (1999), Machida et al. (1984, 1985, 1987), and Pouclet et al. (1986).

Figure F7. Geochemical comparison between tephra Sample 186-1150A-2H-5, 136-138 cm, and selected widespread late Quaternary tephras from terrestrial sites. Correlation with the ~40-ka SpFa-1 tephra erupted from the Shikotsu caldera in Hokkaido is possible. On-land and other possibly correlative marine tephra analyses depicted in this figure are taken from Cadet and Fujioka (1980), Fujioka et al. (1980), Furuta and Arai (1980a, 1980b), Machida (1999), Machida et al. (1984, 1985, 1987), and Pouclet et al. (1986).