地壳-地幔边界(即莫霍洛维奇不连续面或简称莫霍面)代表一个重要的物理和化学界面,莫霍面一般通过折射地震波进行探测,尤其是:(1)来自莫霍面的广角波至,PmP震相,反射波和(或)潜波;(2)Pn 震相,来自上地幔顶部的首波或潜波;(3)近垂直的反射波则提供了莫霍面深度的信息。大不列颠和西德两个地区独立的研究表明,下地壳层状带中最深的反射事件与折射和广 The Crust-Mantle boundary (ie, the Mohojovic discontinuity or Moho) stands for an important physical and chemical interface. The Moho is generally probed by refraction seismic waves, in particular: (1) from the Moho Wide-angle wave arrival, PmP seismic phase, reflected wave and / or sub-wave; (2) Pn seismic phase from the first wave or sub-wave at the top of the upper mantle; (3) near vertical reflection wave provides Moho depth Information. Independent studies in Great Britain and West Germany show that the deepest reflections in the lower crustal zone reflect and refract