Note: 87Rb/86Sr and 147Sm/144Nd are calculated using whole-rock Rb, Sr, Sm and Nd values in Table S4. Initial isotopic ratios are corrected to measured age. (87Sr/86Sr)i = (87Sr/86Sr)sample- 87Rb/86Sr (eλt-1), λRb = 1.42 × 1011 year-1 (Steiger and Jäger, 1977); εNd(t) = [(143Nd/144Nd)sample/(143Nd/144Nd)CHUR(t)-1] × 104. (143Nd/144Nd)CHUR(t) = (143Nd/144Nd)CHUR (147Sm/144Nd)CHUR × (eλt -1). λSm= 6.54 × 10-12 year-1 (Lugmair and Marti, 1978), (143Nd/144Nd)CHUR = 0.512638 (Goldstein et al., 1984), (147Sm/144Nd)CHUR = 0.1967 (Jacobsen and Wasserburg, 1980), CHUR = chondritic uniform reservoir. rv = recommended value, ts = test value.