Hmm .. interesting questions. When looking at the following picture,
I could imagine that it would be possible. You could play with the
1.) Create a noise pattern
with "sandy" colors. Then you might
end up with something similar to the above image.
2.) Then use my Vein code to simulate the "cracks" in the earth
using black color. If you modifiy this a bit with random starting
position etc. - this might end up in an interesting texture.
Feel free to try it and post some examples if you are done. Interesting