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震波层析显象法是由医学界的 X 射线摄影诊断法发展而来的。本文对此法的地球物理基础作了综述,分为四个部分:①导言;②基本概念和具体解法,其中包括研究上地幔的面波分析、研究下地幔的体波分析和上地幔中波速的各向异性研究;③分布情形及其物理意义,包括上地幔的横向异质、下地幔的横向异质和上地幔的各向异性;④结语,其中指出,为地幔做震波层析显象,在地球物理上有极重大的意义,凡板块现象、热点、火山和地震的产生,地热和重力的分布,甚至地核、磁场的活动,都与地幔里物质对流的状况密切相关,利用地震资料的震波层析显象是极为有效的探索方法。
Shock tomography is developed by the medical community’s X-ray photography diagnostic method. This paper reviews the geophysical basis of this method and is divided into four parts: ① Introduction; ② Basic concepts and specific solutions, including studying the upper-mantle surface wave analysis, studying the body-wave analysis of the lower mantle and the upper mantle velocity Of the anisotropy; ③ distribution and its physical significance, including the lateral heterogeneity of the upper mantle, the lateral heterogeneity of the lower mantle and the anisotropy of the upper mantle; ④ Conclusion, which states that the mantle for shock tomography , Which is of great significance in geophysics. All plate phenomena, hot spots, the generation of volcanoes and earthquakes, the distribution of geothermal force and gravity, and even the activity of the core and magnetic field are closely related to the material convection in the mantle. By using the earthquake Shock wave tomographic imaging is an extremely effective method of exploration.