Figure 3. (Left) View from the north of vertical slice AA' and time slice at t=1.970 s through coherence co-rendered with most-positive and most-negative principal curvatures, k1 and k2. (Right) Same time slice shown in 2-D perspective. White arrows indicate a thin graben (in blue) that is separated by two faults (in yellow), which separate it from adjoining horsts (in red). The curvature-coherence relationship seen in the shallower images allows one to interpret less well-resolved features at this level with confidence.