In this figure (Figure 13.21)the grey (Leda clay)and dark (sand)layers are not horizontal because:

Question

Quizplus · Accepted Answer

The non-horizontal positioning of the grey (Leda clay) and dark (sand) layers is due to soft sediment deformation processes, such as liquefaction, slumping, and sliding. These processes can cause layers to distort and tilt from their original horizontal position. Option A and D do not fully explain the deformation of the layers, and option B is unlikely as an observer's weight would not cause such significant deformation.

In This Figure (Figure 13