柴达木盆地西部地壳深界面的反射波

一、前人工作簡介地壳与壳下层的分界面--莫霍洛維奇界面,簡称莫霍界面或是M界面,是地球内部一級的不連續界面。自从A.莫霍洛維奇（Mohorovii）在天然地震的資料中,首先鑑別出这个界面的首波以后,利用天然地震或是人工爆炸的方法,在很多地区都能肯定地得到这个界面的首波。

DEEP SUB-BASEMENT REFLECTIONS IN THE WESTERN PART OF CHAI-DA-MU BASIN

In the records obtained from Chai-Da-Mu Basin by using low-frequency seismic refraction method, many later arrivals have been observed. The event tu was identified as the deep reflection from the interface beneath the basement boundary. The depth of the interface corresponding to t_M was estimated to be 52 kms. under the earth surface. In this paper, the properties of t_M and the method of its resolution are described. The reflection method for exploring the crustal structures is also reviewed briefly.