Small, spherical ironstone concretions called Moqui marbles are seen forming in this close up a Navajo sandstone formation in Snow Canyon State Park, Utah, USA. The concretions are formed by the uneven weathering of elements within the sandstone. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Matulavich, Peter |
Modell-Rechte: | nicht erforderlich |
Länge: | 9 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |