スライド 1

Fig. 12 Ren, Z.-Y., Takahashi, E., Orihashi, Y., Johnson, K. T. M.
bulk rock
meilt equilibrated with high
Mg# of olivine
6.0
5.0
~16.7wt.% MgO
Fe-Mg equilibrium
Olivine fractionation
a*CaO
4.0
Primary magma
3.0
~8.4wt.% CaO
2.0
Ca equilibrium
1.0
Olivine accumulation
0.0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
FeO/MgO (wt%)
1.8
2
2.2
2.4