Travertine Falls
Lower Terraces
Mammoth Hot Springs, Yellowstone National Park
Calcium carbonate is less soluble at higher pH, causing travertine to precipitate out of the water and forming the famous terraces of Mammoth Hot Springs.
© Kelley J. Heffelfinger
Copyright for this gallery photo belongs solely to Kelley J. Heffelfinger. Images may not be copied, downloaded, or used in any way without the express, written permission of the photographer.