antartica
New sea floor is being created at mid oceanic ridges.
At Mid-Ocean Ridges.
Mid-oceanic ridges are created where sea floor spreading takes place. These are called divergent boundaries and mark places where new sea floor is being created. They are tectonically active regions and can be characterized by undersea vents where magma comes up and cools quickly because of its contact with very cold water.
Sea floor spreading causes this. As the floor spreads apart new magma is being pushed up through the ridge from the mantle through convection currents. It's like a recycling system.
No. While new sea floor is being made in one place, at other places it is being destroyed, the diameter of the earth therefore remains constant overall.
Ocean floor
New ocean floor is being created, pushing the Americas away from Europe and Africa.
the ridges
new land is formed
New oceanic crust is formed when volcanic activity disrupts the seafloor at the mid- ocean ridge. When this occurs it is referred to as oceanic spreading.
Seafloor Spreading created by harry hess
Seafloor Spreading created by harry hess