Extended Data Figure 2: Experimental results/phase diagram and interpreted solidus position. | Nature

Extended Data Figure 2: Experimental results/phase diagram and interpreted solidus position.

From: Slab melting as a barrier to deep carbon subduction

Extended Data Figure 2

The reactions clinopyroxene + CO2 = dolomite + 2coesite and dolomite = magnesite + aragonite are from refs 22 and 23 respectively. The upper left curve is the anhydrous MORB solidus. Note that due to temperature gradients in experiments at 8 GPa, a small quantity of dolomite is observed coexisting with melt in one experiment above the solidus, present at the cold end of the capsule. arag, aragonite; CM, carbonatite melt; cpx, clinopyroxene; cs, coesite; dol, dolomite; gt, garnet; mag, magnesite; maj, majoritic garnet; Na carb, Na carbonate; ox, FeTi oxide; SM, silicate melt; st, stishovite.

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