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最近五六年,对地球内部构造的了解取得了重大进展,这主要归功于高质量的地震数据资料.利用地球体波、面波和自由振动进行多方面的研究,弄清了不同深度上的三维空间构造.然而,任何构造研究手段,其分辨率都因探测构造所利用的波的波长而受到限制.在这方面,比如,通过体波获得的模式,其尺度同由面波或自由振动得到的平均尺度不同,其结果应该更为精细.然而,常常发现各种结果的解释,好象对地球三维空间的地震速率给了点值估计.在这篇文章中,我们评述了每种类型资料如何向我们提供地球构造的信息,对其分辨率和误差又应作何种解释.
In the recent five or six years, significant progress has been made in understanding the structure of the Earth’s interior, mainly due to high-quality seismic data, and various studies using earth-wave, surface-wave and free-vibration studies have made it clear that However, the resolution of any tectonic research method is limited by the wavelength of the wave used to detect the structure, and in this respect, for example, the mode obtained by bulk wave has the same scale as that of surface wave or free vibration The resulting average scales are different and the results should be more refined, however, it is often found that the interpretation of the various results seems to give a point-value estimate of the seismic velocity in the Earth’s three-dimensional space.In this article, we reviewed each type How information provides us with information about the Earth’s tectonics and what should be its resolution and error.