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Table 4 Summary of experiment results

From: Major element composition of an Early Enriched Reservoir: constraints from 142Nd/144Nd isotope systematics in the early Earth and high-pressure melting experiments of a primitive peridotite

  Run number Iteration step Added melt (wt%) T (°C) Duration (h) Equilibrium assemblage Phase proportions*    R2a KD b Fe-loss (%)
KLB-1        ol cpx gt liq    
  5K2353 1700 4.5 ol, cpx, gt 63.3 22.8 13.9 0.40 0.0
  1K1976 1750 3.0 ol, cpx, gt, liq 62.6 24.5 13.0 trace 1.49 0.7
  1K1975 1800 0.3 ol, melt 35.4 64.6 2.39 0.35(+0.03, -0.07) 1.4
MISE              
  1K2019 1 14 1750 1.5 ol, cpx, gt, liq 54.0 9.8 8.2 28.1 0.01 0.34(+0.05, -0.05)
  1K2042 2 20 1750 1.5 ol, cpx, gt, liq 47.0 18.2 8.6 26.1 0.01 0.35(+0.1, -0.07)
  1K2055 3 20 1750 1.5 ol, cpx, gt, liq 41.4 11.2 4.6 42.7 0.04 0.36(+0.08, -0.07)
  1K2116 4 20 1750 1.5 ol, cpx, gt, liq 46.2 13.6 8.0 32.2 0.11 0.37(+0.07, -0.06)
  1K2141 5 20 1750 1.5 ol, cpx, gt, liq 51.4 19.0 12.5 17.1 0.38 0.33(+0.09, -0.06)
  1. *Abbreviations: ol olivine, cpx clinopyroxene, grt garnet, liq quenched liquid
  2. aSum of squared residuals in mass-balance calculations
  3. bFe–Mg exchange coefficients between residual olivine and quenched melt. The maximum and minimum values were calculated from errors (1σ) on FeO and MgO contents in olivine and quenched liquid