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| The presence of a geological fault is implied by the discontinuous nature of the horizons (the black and white stripes caused by the sedimentary layering of the rocks). | |
| The semblance measure provides a quantatitive measure of the localised continuity of an horizon. The figure on the left gives an equivalent semblance map for the 2D seismic slice shown above. |
| The semblance map is post-prossessed, thresholded and sub-sampled to give a set of seed points (see right). | |
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