Back-arc region
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The back-arc region is the area behind a volcanic arc.[1]
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.[1]
In continental arcs the back-arc region is part of continental platform, either dry land (subaerial) or forming shallow marine basins.[1]
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