Supplemental Table S1. Nd duplicate analyses. Sample LDGO LDGO SDSU SDSU VU VU Name 143Nd/144Nd 2se 143Nd/144Nd 2se 143Nd/144Nd 2se 12 0.512954 36 0.512933 5 NULL NULL 13 0.512887 19 0.512948 6 NULL NULL 16 0.512867 20 NULL NULL 0.512866 12