A numerical approach to melting in warm subduction zones

摘要: The complex feedback between dehydration and melting in hot subduction zones is quantitatively addressed this study. We present an integrated numerical tool that combines a high-resolution thermo-mechanical model with thermodynamic database allows modeling metamorphic devolatilization, subsequent re-hydration reactions. apply to quantify how the hydration state of lithologically layered subducting slab varies during interaction mantle wedge affects any taking place crust or overlying wedge. Total crustal achieved before can occur, even very young slabs. Significant oceanic only if fluids from dehydrating underlying are fluxed through dry eclogites. But our models further demonstrate melt these specific conditions, preceding will simultaneously result extensive at lower pressures than for colder significant implies also zones, most feeding overriding plate origin.