Translations:Coherence cube (C3)/13/en

How do the seismic imprints of horizons and faults differ? A reflected event is an echo from a horizon. A reflected event can be thought of as a “barking dog” — that is, the horizon makes its presence known by giving off reflections. On the other hand, generally speaking, few reflections arise from faults. A fault does not represent a barking dog. To find a fault, we must find the dog that does not bark. Because of the importance of faulting in geologic interpretation, the problem of finding that dog must be solved. Traditionally, the use of attributes was devoted almost exclusively to detecting reflections hidden by noise. In contrast, discontinuity attributes (or dissimilarity attributes) are required to detect faults.