Note that Core 57R-4 is interpreted as having been contaminated by pelagic sediment on eruption and that the rhyolite Sr-isotopes are alteration-affected. For strongly leached samples, the initial Sr ratios are reported as the same as measured ratios. Calculations of initial ratios and epsilon values are based on trace element data in Table 1 (dataset: doi:10.1594/PANGAEA.770706).