Which mantle process primarily contributes to the explosive volcanic activity found at subduction zones?

💡 Explanation

When a subducting plate descends, the water trapped within the sediment and hydrated minerals is released into the overlying mantle, causing flux melting as it lowers the mantle's melting point, leading to magma rich in volatiles. Therefore flux melting contributes, rather than decompression, plume upwelling, or conduction, which occur due to different mechanisms or tectonic settings.

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