Sea floor spreading adds more crust to the ocean floor and at the same time older strips of rock move outward from either side of the ridge.
Explanation:
as the ocean plate is pushed under the overriding continental plate the ocean sedimentary layers are heated compressed and melted the pressure of the converging plates that create the subduction zone forces the Continental play upwards creating mountain ranges such as Andes
TASMANIA AND THE NORTHERN WEST REGIONS OF AUSTRALIA IS BEST
