i don't remember exactly, but i think its when magma melts the rock so it becomes magma, then the magma will come back up forming new rock, and push the old rock and it will melt and turn into magma. its like a cycle. but im not positive so my answer could be wrong.
The Super Continent was broken apart, in part by sea-floor spreading.Scientists discovered that sea-floor spreading continues to move the continents.Sea-floor spreading can be measured using specialized equipment.
Spreading Of ocean floor
sea-floor spreading
Not really but sea floor sediments thickness increase with increased distance from spreading centers which is good evidence. Other evidence such as magnetic reversals, temperature, dating methods provide the best evidence of seafloor spreading
Mid ocean ridges are the direct result of 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
sea floor-spreading..;)
Sea floor spreading occurs at the mid ocean ridges.
Sea floor spreading occurs at mid-ocean ridges
The Super Continent was broken apart, in part by sea-floor spreading.Scientists discovered that sea-floor spreading continues to move the continents.Sea-floor spreading can be measured using specialized equipment.
Spreading Of ocean floor
sea-floor spreading
the sea floor is spreading about 3cm every year answers will vary but it is usually around 3cm
Sea floor spreading mean the process by which molten material adds new oceanic crust to the ocean floor
Sea Floor Spreading!
Sea floor spreading occurs at mid-ocean ridges.
Sea floor spreading is caused by convection currents in the mantle to cause a divergent boundary underwater. When the divergent boundary spreads, it caues a mid-ocean ridge. This is sea-floor spreading. Hope I helped!