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PL 波是六十年代以来引起地震学界注意的一种震相。本文首先综述国外的有关研究成果,随后根据我国东部地区若干地震台的 PL 记录资料分析相应地区的地壳上地幔结构,并对进一步研究 PL 波的若干问题作了讨论。
PL wave is a kind of seismic facies that has caused the attention of seismologists since the 1960s. In this paper, we first review the relevant research results in foreign countries, and then analyze the crustal and upper mantle structures in the corresponding areas based on the PL records of several seismostation stations in the eastern part of our country. Some issues about the further study of PL waves are also discussed.