(Table S2) Nd isotopes of sediment core OCE326-GGC6 bulk sediment leachates

Neodymium isotopes were analysed using the Nu Plasma HR multi-collector mass spectrometer (MC-ICPMS) at the University of Cambridge, using bracketing of JNdi-1 for standard correction. 146Nd/144Nd was normalised to 0.7219. Reported 143Nd/144Nd are often averages of multiple runs, each for 30 ratios and the error reported is the internal error of the analysis (2 sigma). The reported epsilon-Nd is an average of multiple runs and their respective external errors (2 sigma) for that particular session, unless the internal error was larger than the external, in which case the combined internal and external error (2 sigma) is reported.