Solar evaporation ponds, Utah, USA

Numéro d’image : 12582791
Solar evaporation ponds, Utah, USA
These bright blue evaporation ponds contain potassium chloride, a salt found in the geological region known as the Paradox Formation in Canyonlands National Park, Utah. Salt deposited from ancient seas made up this formation as it evaporated and was buried by other sediments. Water is pumped down into the formation to dissolve the salt which is then pumped into the shallow, vinyl-lined pond terraces. A blue dye is added to speed up evaporation. The dry desert air and many sunny days make this a productive environment. Twenty-ton scrapers, guided by lasers, harvest the dry salt. A local refinery transforms this concentrated form of potassium chloride into plant fertiliser.
Licence : Droits gérés
Crédit: Science Photo Library / Parker, David
Taille de l’image : 5464 px × 3261 px
Model Release : Non requis
Property Release : Non requis
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