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Fig. 9 | Progress in Earth and Planetary Science

Fig. 9

From: Hydrous Na-garnet from Garnet Ridge; products of mantle metasomatism underneath the Colorado Plateau

Fig. 9

A schematic model of modification of garnet chemistry during metasomatic processes at mantle depths. The dark-gray spot shows the representative chemical composition of group A, Cr-rich pyrope, the protolith of mantle metasomatism. The lighter gray area shows chemical compositions of group B: Cr-poor pyrope. Colored arrows indicate trends of chemical changes of group B garnet during mantle metasomatism

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