Subduction zones are collision between two tectonics plates such that one of the plates is subducted to the mantle (or sinks) directly below the other plate
Whereby the densities of the convergent (colliding) continental plates are lower than the density of the mantle, subduction is prevented from occurring, and subduction zones are not formed at the continental-continental convergent boundaries
The Mexico–United States barrier (Spanish: barrera México–Estados Unidos), also known as the border wall, is a series of vertical barriers along the Mexico–United States border intended to reduce illegal immigration to the United States from Mexico.
