Wednesday, April 9, 2014

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).


Hollis said...

I like these abstract shots a lot!

Lockwood said...

The place I really want to get back to for colorful, abstract, sedimentary structures, both primary and secondary, is Sunset Bay State Park, south and west of Coos Bay on the central coast. Gorgeous stuff!