1912年,德国气象学者魏格纳注意到美洲大陆东缘和非洲大陆西缘在外形上能够吻合这一现象,就此提出大陆漂移假说。魏格纳构思的一幅图像是:美洲大陆本来是连为一体的,后来由于地壳的运动才分开成两个大陆,直至到达今天所见的位置。50年代海底扩张概念建立,大陆漂移的观点在欧美被广泛接受。10多年后,美国学者威尔逊、摩尔根和勒 In 1912, the German meteorologist Wei Wagner noticed that the contour of the continental margin between the eastern continental margin and the continental margin of the continent was in good agreement with that of the continental drift hypothesis. One of Wigner’s ideas is that the mainland of the United States was originally an integrated entity and later separated into two continents because of the movement of the crust until it reached the position it sees today. The concept of seabed expansion in the 1950s was established. The viewpoint of continental drift was widely accepted in Europe and the United States. More than 10 years later, American scholars Wilson, Morgan and Le