Geo 730: April 9, Day 465: Abstract

As I mentioned in the March 27th post, erosion of cross beds in wind-blown sand can create some beautiful patterns. Here we're looking down the axis of a trough. It appears that in both the older, eroded cross beds, and in the more recent transverse ripples to either side of the eroded area, the direction of the transporting winds were roughly similar.

Photo unmodified. July 10, 2012. FlashEarth location (approximate).