Subduction-related volcanism occurs when an oceanic plate is forced under a continental or another oceanic plate, leading to the melting of the subducted plate and the formation of volcanic arcs. This type of volcanism is significant for understanding the geochemical evolution of magmas and the hazards associated with explosive eruptions.
Reference: Turner, S., & Hawkesworth, C. (1998). “The Role of the Subduction Zone in Magmatism.” Journal of Geophysical Research: Solid Earth, 103(B1), 819-835.