Mammoth Hot Springs mineral terrace in the Yellowstone National Park,Wyoming,USA. The terraces form at the outflow of geothermal springs. The water is heated under pressure deep underground. This dissolves large amounts of minerals from the surrounding rocks and then deposits them at the surface as it cools. The white material on the terraces is the mineral travertine (calcium carbonate) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lewis, G. Brad |
Taille de l’image : | 4843 px × 3827 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |