Which outcome results alongside island arc formation due to subduction?

💡 Explanation

Mantle wedge metasomatism increases partial melting above the subducting slab, because the addition of water and other volatiles lowers the mantle's solidus; therefore, increased volcanism and arc formation, rather than suppressed activity, follows due to flux melting.

• Which outcome typically accelerates when glacial loess weathers?
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• Which climatic effect results when thermohaline circulation weakens due to increased freshwater input in North Atlantic?
• Which outcome occurs when groundwater exploitation exceeds recharge in an alluvial aquifer?
• Which process predominantly shapes the bathymetry of a fjord immediately after deglaciation?