The Role of H2O in Subduction Zone Magmatism
Water is a key ingredient in the generation of magmas in subduction zones. This review
focuses on the role of water in the generation of magmas in the mantle wedge, the factors
that allow melting to occur, and the plate tectonic variables controlling the location of arc
volcanoes worldwide. Water also influences chemical differentiation that occurs when
magmas cool and crystallize in Earth's continental crust. The source of H2O for arc magma
generation is hydrous minerals that are carried into Earth by the subducting slab. These …
focuses on the role of water in the generation of magmas in the mantle wedge, the factors
that allow melting to occur, and the plate tectonic variables controlling the location of arc
volcanoes worldwide. Water also influences chemical differentiation that occurs when
magmas cool and crystallize in Earth's continental crust. The source of H2O for arc magma
generation is hydrous minerals that are carried into Earth by the subducting slab. These …
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