tafoni weathering, a phenomenon that is not well understood. I tend to associate it with saline environments- either marine shores, or enclosed basins in arid settings. I don't think it's limited to salty areas, though, and numerous explanations have been proposed for how it occurs. Whatever the mechanism, it's appealing and fascinating.
Photo unmodified. March 8, 2012. FlashEarth location.
Is This Your Hat?
2 years ago