... and crossline gradients as directional measures of amplitude variability (Chopra and Marfurt, 2007). Shape Index modulated by Curvedness Curvedness provides a measure of the intensity of structural deformation at a given point. Chopra and Marfurt (2007) define the curvedness, c, of a surface as: where k1...

... of elongated domes, ridges, saddles, valleys, or elongated bowls corresponds to min. By modulating the shape indices with the curvedness, c, (where c2=kmin 2+kmax 2) Al-Dossary and Marfurt (2006) show how we can generate different shape components. Figure 1: An illustrated definition of 3D curvature...