Which volcanic outcome often occurs because partial melting above subduction zones?

💡 Explanation

Island arcs form because flux melting lowers the mantle's melting point, generating magma that rises to create a chain of volcanoes parallel to the subduction zone. Partial melting causes localized, rather than widespread, volcanism; therefore island arcs arise instead of flood basalts.

• Which atmospheric pressure outcome occurs when strong insolation amplifies Hadley cell convection?
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• Which mechanism causes increased anchovy populations following strong coastal upwelling events?
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