The serpentinite-dominated diapiric mélange melting model for the origin of the SSI arc magmas (IMAGE)
Caption
The serpentinite-dominated mélange was initially formed at the slab-mantle interface, which is primarily composed of forearc serpentinite along with minor sediments and possibly other slab-derived materials. The mélange rises as diapirs into the overlying hot mantle wedge due to its buoyancy and low viscosity, which then melts along with the surrounding mantle rocks and eventually forms the arc magmas.
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