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Progress in Earth and Planetary Science
Fig. 11 | Progress in Earth and Planetary Science

Fig. 11

From: Si- versus Mg-metasomatism at the crust–mantle interface: insights from experiments, natural observations and geochemical modeling

Fig. 11

Schematic illustration of Mg- and Si-metasomatism at the slab–mantle interface in a subduction zone (Top panel). In the cold subduction zones, Si is transported from crust to mantle to form the talc zone within the hydrated serpentinite (Bottom left panel). In the warm subduction zone, Mg is transported from mantle to crust to form chlorite rocks within the crustal rocks. Si-metasomatism also occurs occasionally to form talc and tremolite vein networks (Bottom right panel)

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