前言海底扩张说是由大陆漂移学说发展来的,并又进而推导出板块构造学说,它们的一系列论点有可能成为关于地球上大规模的诸种现象形成机制的理论基础。目前这虽只不过是一种可能,但却是不容忽视的,必须明确它的重要意义。当今,世界上和板块学说持相反观点的以别洛乌索夫为代表。至于哪一种学说更接近实际,乃是七十年代固体地球科学的研究课题。无论哪一种论点都不是把地表上的现象仅仅看 Foreword The theory of submarine expansion was developed from the theory of continental drift and further derived plate tectonics. Their series of arguments may become the theoretical basis for the formation of large-scale phenomena on Earth. Although this is only a possibility at present, it can not be ignored and its importance must be clarified. Today, the world and plate theory take the opposite view to the representative of Belo Horizonte. As to which doctrine is more realistic, it is the research topic of solid earth science in the seventies. No matter what kind of argument is not to look at the phenomenon of the surface only