Island arcs, which arise from volcanic activity along subduction zones where one tectonic plate dives beneath another, play a crucial role in the formation of the continental crust. The study ...

Subduction zones serve as a critical link ... focused on volcanic rocks and forearc serpentinites from the South Sandwich Island arc. This arc, located in the South Atlantic between South America ...

The volcanic rocks have bimodal silica concentrations and geochemical characteristics of subduction-related island-arc magmatism. Mafic to intermediate rocks comprise a mantle-derived differentiated ...