Sand layers. Different coloured layers (strata) of sand at a sand quarry. Strata are formed when differently composed layers of sand or soil are layed down one on top of the other. The different colours are usually formed by the different mineral compositions of each layer | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Goetgheluck, Pascal |
Bildgröße: | 5616 px × 3744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |