Which is common formed at a plate boundary where oceanic crust conveges with continental crust?
1 Answer
A subduction zone.
Explanation:
The converging boundary where an ocean plate means a continental plate is a place where the crust is being shortened.
The ocean plate is pushed down by the greater density of the basaltic crust and pulled down by the downward motion of the convection current in the underling mantle. This downward motion creates an trench at the subduction zone.
The crust is also shortened by the buckling of the continental crust. The lighter (granite) crust of the continent is forced upward as the Ocean crust is pushed underneath the continental crust. This upward movement creates mountain ranges on the continental crust.
As the ocean crust is forced downward the movement creates earthquakes, and tsunami waves. The melted crust is often driven upwards by the water in the crust which is turned to vapor under high pressure. The melted crust forms volcanos along the edges of the subduction zone.
The meeting of an ocean plate and a continental plate forms a subduction zone with the resulting mountains, and deep ocean trenches.
