Examining the petrogenesis of magmas to further in cold and warm subduction zones.
Dehydrating the downgoing plate (slab) promotes mantle melting, generating water-rich magmas. Subduction-related magmas can thus be understood as partial melts from the hot asthenospheric mantle wedge fluxed by the fluids released from the downgoing plate. Here, I focuse on the genesis of melts produced in cold and warm subduction zones (arc, back-arc basin, rear arc) to further comprehend how such magmas form. I also examine fore-arc magmas (such as adakites, forearc basalts, boninites), as these rare lavas can provide new critical constraints on shallow processes that occur above a long-lived subduction zone or during subduction infancy.