摘要
In this paper, based on the large scale uplift, lateral inhomogeneity and low interface velocity along the Moho as well as the soft low velocity layer under it obtained from deep seismic sounding (DSS), we deduced that the southern region of North China Plain is characterized by continental rift and abnormal mantle in the lithosphere.Summarizing geological and geophysical data, we try to state that the forming and developing of abnormal mantle and the intermittent activity of asthenosphere are the dynamic sources to dominate the geologic structure and tectonic movement in this region. We also point out that the research of deep process is important to probe timespace law of earthquake occurrence.
In this paper, based on the large scale uplift, lateral inhomogeneity and low interface velocity along the Moho as well as the soft low velocity layer under it obtained from deep seismic sounding (DSS), we deduced that the southern region of North China Plain is characterized by continental rift and abnormal mantle in the lithosphere.Summarizing geological and geophysical data, we try to state that the forming and developing of abnormal mantle and the intermittent activity of asthenosphere are the dynamic sources to dominate the geologic structure and tectonic movement in this region. We also point out that the research of deep process is important to probe timespace law of earthquake occurrence.
