Patterns of black staining on a sand and mud bottom area. Is this material of geological or biological origin?
Photo Date: 2011 July 24
640 x 360 | 61.94 KB | |
1280 x 720 | 228.58 KB | |
1920 x 1080 | 426.40 KB | |
1920 x 1080 | 576.54 KB |
Added On | 16th October 2015 |
Viewed | 9 viewed |
Downloads | 1 Downloaded |