Figure 7. Analytical transects across Cr-rich spinel inclusions in plagioclase from Hole 338. Cr# = Cr/(Cr + Al + Fe3+), Mg# = Mg/(Mg + Fe2+), Fe# = Fe3+/(Cr + Al + Fe3+), and Melt Mg# = Melt Mg/(Mg + Fe2+) inferred from Cr-rich spinel compositions as explained in the text. BSE images of the crystals analyzed are given in Figure 2, with analyses from the traverses given in Table 2.
