Sand

[DDan]

Here are a couple of shots of the sand.

http://momentoffame.com/photopost/data/520/medium/sand.jpg
http://momentoffame.com/photopost/data/520/medium/sand2.jpg

[dawnrogers]

wow looks like some kind of charcoal drawing...very unusual.

[DDan]

The patterns were caused by trickling water flows. The area is near the outlet of a lagoon. The silt coming from the lagoon is the black stuff.