From SEG Wiki
Jump to: navigation, search
Other languages:
English • ‎español

1. The reversal of the dip direction of the electromagnetic field over the apex of a conductor. The undisturbed electromagnetic field of stations in the plane of a vertical source loop that is horizontal. In the presence of a subsurface conductor, the field will be horizontal over the apex but will have vertical components in opposite directions on either side of the conductor. 2. The intersection of two curves. 3. The intersection of two lines.