Is there any indirect method of calculating the Kd value and Feo/MgO ratio of liquid and olivine in equilibrium (inferred) with whole rock data?

25 August 2015 0 5K Report

I am having altered komatiite rocks with pyroxene preferred. MgO is 25-30%, so olivine is a phase for sure. Using Kd: 0.35 (Toplis, 2005), I wanted to calculate the FoOlv supposedly in equilibrium with the melt. How should I proceed? My FeO is showing positive correlation with MgO.

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