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本世纪五十年代末,人类已跨入空间纪元,可是对自己居住的星球的了解还相当肤浅。地质学所依据的资料主要来自大陆,而对占地球表面约60%的深海大洋部分(还有10%左右为浅海部分)却几乎一无所知,致使有关地壳演变的一系列重大问题悬而未决。人们越来越体会到要阐明地球的结构和演化的规律,必然要把海与陆作为一个整体来考虑,因此,用深海钻探来获取地质资料就显得尤为迫切。同时浮船钻井技术上的突破,深海钻探的条件便日趋成熟.
In the late fifties of this century, mankind had stepped into space era, but its understanding of the planet where he lives is still rather superficial. Geology is based on data mainly from the Mainland but barely any knowledge of the deep-ocean part of the Earth, which accounts for about 60% of the Earth’s surface (and about 10% of shallow-water parts), leaving a series of major questions about the evolution of the crust unresolved. People are more and more realizing that to understand the law of structure and evolution of the earth, it is bound to consider the sea and the land as a whole. Therefore, it is urgent to use deep-sea drilling to obtain geological data. At the same time, the technical breakthrough of the pontoon drilling technology will deepen the conditions of deep-sea drilling.