Fig. 9From: Si- versus Mg-metasomatism at the crust–mantle interface: insights from experiments, natural observations and geochemical modelingSpeciation of Mg, Si, Ca, and Al in aqueous fluids in a–c pelite-derived and d–f mantle-derived fluids calculated using geochemical models of the incremental addition of pelite and mantle peridotite (Fig. 8) in the a, d NE Japan, b, e Nankai, and c, f Cascadia subduction zones. For each element, the two most abundant species are shownBack to article page