Fig. 1: Backscattered electron micrographs illustrating the kelyphitized garnet.
From: Iron disproportionation in peridotite fragments from the mantle transition zone
a “Garnet” lherzolite consists of kelyphitized garnet (K-Grt), olivine (Ol1), clinopyroxene (Cpx), and orthopyroxene (Opx). b The K-Grt rim consists of Opx, Cpx, spinel (Sp), and plagioclase (Pl), lied between Ol1 in the host lherzolite and the K-Grt core. c, d The K-Grt core exhibits a nanometer-sized domain composed of Opx + Sp + Na-rich matrix, juxtaposed with domains composed of Ol2 + Sp + Na-rich matrix featuring slightly larger grains (enclosed within the yellow dashed lines). Spherical Fe-Ni alloys are widely distributed in both domains.
