Fig. 6. Plots of olivine (a) MgO–FeO, (b) Ca–Ti, and (c) Cr–Ni contents.
The clinopyroxene inclusions (Cpx1) in the garnet (Fig. 4b) have relatively high MgO (26.29–32.72 wt.%) and low FeO (2.96–5.10 wt.%) and CaO (5.44–8.88 wt.%) contents, and can be classified as pigeonite (Fig. 7b). Coarse-grained clinopyroxene porphyroblasts (Cpx2; Fig. 4b, f, and j) have MgO = 15.31–17.25 wt.%, FeO = 4.94–6.80 wt.%, and CaO = 19.64–20.74 wt.%, and can be classified as augite (Fig. 7b). The fine-grained matrix clinopyroxene (Cpx3; Fig. 4h and j–l) is diopside, and it has the lowest MgO (14.31–15.69 wt.%) and highest CaO (21.68–23.88 wt.%) contents of the three types of clinopyroxene (Fig. 7b).