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Table 2 Compositions of starting materials

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

wt% KLB-1a Primitive peridotiteb Putative solidus melt 1 Putative solidus melt 2 Putative solidus melt 3 Putative solidus melt 4 Putative solidus melt 5
SiO2 44.48 44.61 43.8 45.3 43.8 44.4 44.3
TiO2 0.16 0.17 2.5 1.8 1.5 1.6 1.9
Al2O3 3.59 3.60 4.9 5.1 5.4 5.3 4.3
Cr2O3 0.31 0.30 0.3 0.3 0.3 0.3 0.2
FeO 8.10 8.12 12.8 13.1 13.0 12.6 14.4
MnO 0.12 0.12 0.2 0.2 0.2 0.2 0.2
MgO 39.22 39.32 22.0 23.6 23.6 23.3 24.2
CaO 3.44 3.43 10.0 8.3 10.0 9.2 8.8
Na2O 0.30 0.30 1.4 1.2 1.3 1.3 1.3
K2O 0.02 0.02 1.5 1.0 0.6 1.5 0.2
P2O5 0.03 0.03 0.6 0.3 0.3 0.3 0.3
Total 99.8 100.00 100.0 100.0 100.0 100.0 100.0
Mg# 89.6 89.6 75.4 76.3 76.3 76.7 75.0
H2O   0.07 0.08 0.07 0.07 0.06 0.08
  1. aTakahashi (1986)
  2. bThis study