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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

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

Fig. 6

a, b Reaction zones between a metagabbro and serpentinite in the Voltri Massif (modified after Codillo et al. 2022a). a Modal abundances of minerals in each zone. Zone I and Zone V represent the unaltered serpentinite and metagabbro, respectively. Zones II–IV are the reaction zone in the metagabbro. b Bulk rock composition as a function of distance from the metagabbro–serpentinite contact. Top panel: MgO, bottom panel: SiO2. c Reaction zones between a pelitic schist and serpentinite in the Nishisonogi metamorphic rocks (modified after Mori et al. 2007). c Sketch of the reaction zones. Atg: antigorite, Chl: chlorite, Tlc: talc, Ep: epidote, Amp: amphibole, Grt: garnet, Cpx: clinopyroxene, Ab: albite, Ox: oxide, Cb: carbonate, Qz: quartz, Ms: muscovite

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