Supplemental Material: Source volcanoes and tephras of pumice clasts found on beaches along the Kuroshio Current on the Pacific coast of Japan

Table S1 Characteristics and average chemical compositions of the drift pumice samples
n: measurement points, upper: mean (wt%), lower: standard deviation, *: total iron oxide as FeO, **: raw data before recalculation to 100% on a water-free basis.