This kind of boundary can develop later into a subduction zone.
However, the plate boundary and subduction zone in this area is not very straight.
Regions where this process occurs are known as subduction zones.
Again, though, this can be processed and dumped in subduction zones.
The magma came from the subduction zones below and to the north of the island.
However, this particular section of the subduction zone had not had an event for a much longer time.
It is a triple junction and three subduction zones are involved.
The Canadian subduction zone is 800 million years older.
With the birth of this new subduction zone, the early Appalachians were born.
A subduction zone existed on the west side of Wrangellia.