自从发现大洋中脊后,地球裂谷带引起地学者的高度关注。近年来,它已被列为地质科学的主要研究课题之一,在地质界掀起了“裂谷热”。什么是裂谷,目前还没有统一的确切定义。在构造地质学中所指的裂谷,与地堑同义。大陆地堑曾一度被视作地壳的奇异构造。在大地构造学中,裂谷一词系指有火山活动和地震 Since the discovery of the mid-ocean ridge, the Earth’s rift zone has drawn great attention from the scholars. In recent years, it has been listed as one of the major research topics in geosciences and “Rift Valley Fever” has been set off in the geological field. What is rift, there is no exact definition of unity. Rift in structural tectonics is synonymous with the graben. The graben in the mainland was once regarded as the strange structure of the crust. In tectonics, the term rift means volcanic activity and earthquakes