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).