Which mechanism causes the formation of explosive stratovolcanoes at subduction zones?

💡 Explanation

When a denser oceanic plate subducts, flux melting occurs because the subducting plate releases water and other volatiles into the overlying mantle wedge, lowering its melting point and creating more viscous, gas-rich magma. Therefore explosive volcanism results, rather than mafic magma, plumes or fissures which are from different scenarios.

• Which process drives the formation of island arcs at subduction zones experiencing volatile flux?
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• Which outcome is facilitated by creep along transform faults?
• Which process causes temporary meromictic conditions in a lake following a extreme rainfall event?
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