Continental drift is now believed to reflect the movement over geological time of underlying plates in the earth's crust-the theory of plate tectonics.
Continental drift is now believed to reflect the movement over geological time of underlying plates in the earth's crust-the theory of plate tectonics.
板块构造学说提出后，大陆漂移说又获得了新的含义，它反映了地壳运动和大州大洋的分布规律。