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

Progress in Earth and Planetary Science

Table 2 Compositions of starting materials

wt%	KLB-1^a	Primitive peridotite^b	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