Headwave Stacking in Terms of Partial Derivative Wavefield

Abstract

Head wave stacking and velocity analysis are used to image the shallow subsurface, while CMP stacking and velocity analysis are used to image deep structures of the earth. I relate these concepts to partial derivative seismograms, which gives stacking straight line of head waves. The stacking straight line can be described kinematically by partial derivative seismograms, resulting in an interesting seismic imaging relationship.