Geyser field. Tourists viewing the steam rising from hot pools in the Tatio geyser field,Chile. Geysers are deep natural wells in geothermal rock fissures. Their water lies in a large chamber at the well's base. The water is heated by surrounding rocks until it is well over its normal boiling point,but is prevented from boiling by hydrostatic pressure. At a critical temperature,the super-heated water spontaneously boils,causing an eruption | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Raymond, Peter J. |
Taille de l’image : | 5952 px × 2936 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |