华北断块新生代玄武岩分布颇为广泛(图1)。尤其是,近几年来在华北平原下普遍发现了隐伏的玄武岩层(最大厚度可达百米),更引起了不少中外地质工作者的注意。本文着重讨论该区域内新生代玄武岩的时空分布规律,岩石化学特征及有关地质问题。 North China block Cenozoic basalts are quite widespread (Figure 1). In particular, in recent years, hidden basaltic layers have been found under the North China Plain (the maximum thickness can reach up to 100 meters), which has aroused the attention of many Chinese and foreign geologists. This article focuses on the spatial and temporal distribution of Cenozoic basalts in the region, petrochemical characteristics and related geological issues.