Aqueous fluids are important and essential mass-transfer agents in the Earth’s crust and mantle. They are produced by sediment compaction, metamorphic devolatilization and magmatic activity in a variety of settings, including continental and accretionary orogens, subduction zones with magmatic arcs as well as by hydrothermal systems at mid-oceanic ridges and sea floor (Wilson et al. 2000; Kerrick and Connolly 2001; Manning 2004; Breeding et al. 2004; Palandri and Reed 2004; Bucher and Stober 2010). The fluid-mediated mass transfer produces specific major- and trace-element and isotopic patterns in source regions of mantle melting and...

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