Arc volcanism refers to the volcanic activity that occurs in volcanic arcs, which are chains of volcanoes formed above a subduction zone where one tectonic plate is forced beneath another. This process is driven by the melting of the subducting plate as it descends into the mantle, resulting in magma formation that rises to create volcanoes. These volcanic arcs are typically associated with oceanic-continental or oceanic-oceanic convergent boundaries and are significant for understanding tectonic interactions and magma generation.
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