#ridges

• by khow

  APF0000afh. Can someone explain what's shown here? Thanks, just starting at this.

  Posted January 13, 2013 6:16 PM

• by Tim_Colman

  Sinuous ridges or depressions often arranged in polygons (mainly quadrilaterals) Don't look like streams formed by liquid; maybe ice cracks?

  Posted January 13, 2013 7:05 PM