Atlantic ocean is expanding due to formation of new crust at the mid-Atlantic ridge and westward motion of the North American Plate. Further Eurasian Plate is moving eastward and sliding over Pacific Plate and minor plates sinking in the Pacific ocean. read more
The Atlantic ocean has the mid-ocean ridge which has lava flow about every year and pushes out the rock around it. The Atlantic ocean expands about two inches every year pushing the continent with it. read more
Best Answer: The ocean floor of the Atlantic Ocean is the site of the Mid-Atlantic Ridge, which is a divergent boundary between tectonic plates. A divergent boundary means that the tectonic plates are moving away from each other. read more