Back-arc region

The back-arc region is the area behind a volcanic arc. In island volcanic arcs it consists of back-arc basins of oceanic crust with abyssal depths, which may be separated by remnant arcs, similar to island arcs. In continental arcs the back-arc region is part of continental platform, either dry land (subaerial) or forming shallow marine basins.

Back-arc region

The back-arc region is the area behind a volcanic arc. In island volcanic arcs it consists of back-arc basins of oceanic crust with abyssal depths, which may be separated by remnant arcs, similar to island arcs. In continental arcs the back-arc region is part of continental platform, either dry land (subaerial) or forming shallow marine basins.