If you excavated an exploratory trench from left to right through either of the sand dunes in the figure below,which way would you expect to find the cross-beds dipping?

Question

Quizplus · Accepted Answer

Cross-beds always dip in the direction of current flow. In this case, the dune is asymmetrical and the wind direction is from left to right, so the current flow (wind) would be from left to right, causing the cross-beds to dip to the right.

If You Excavated an Exploratory Trench from Left to Right