one plate is moving under another plate
sea floor spreading
Seafloor spreading where new floor is formed. Subduction zone where older floor is pushed back into the mantle.
Mid ocean ridges are the direct result of sea floor spreading.
sea-floor spreading
the sea floor separates. magma comes up the crack forming new sea floor
Forms by lava from volcanoes on the sea floor
Mid ocean ridges
Sea Floor Spreading!
DA ANSWER ISseafloor spreadingThe_process_by_which_molten_material_adds_new_oceanic_crust_to_the_ocean_floor_is_calledThe_process_by_which_molten_material_adds_new_oceanic_crust_to_the_ocean_floor_is_called
Plate tectonics.
As plankton die, it sinks to the sea floor, and over many years, a sediment is formed.
in the theory of plate tectonics, the process by which new oceanic crust is formed by the convective upwelling of magma at. your welcome peoples!!!!