地球内部过程 Plate Tectonics Several centuries ago, observers looking at global maps noticed 代 the similarity in outline of the eastern coast of South America and the western coast of Africa. In 1855. Antonio Snider went so far as to publish a sketch showing how the two continents could fit together, jigsaw-puzzle fashion (1. Such reconstruction gave rise to the bold suggestion that perhaps these continents had once been part of the same landmass, which had later broken up. =312 环境迪顶学 minoucntalocelogu ,率地球内部过程 • Plate Tectonics Several centuries ago, observers looking at global maps noticed the similarity in outline of the eastern coast of South America and the western coast of Africa. In 1855, Antonio Snider went so far as to publish a sketch showing how the two continents could fit together, jigsaw-puzzle fashion ①. Such reconstruction gave rise to the bold suggestion that perhaps these continents had once been part of the same landmass, which had later broken up