Grand Prismatic Spring Yellowstone National Park Panorama
The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the worldThe vivid colors in the spring are the result of pigmented archaea in the microbial mats that grow around the edges of the mineral-rich water. The archaea produce colors ranging from green to red; the amount of color in the microbial mats depends on the ratio of chlorophyll to carotenoids and on the temperature of the water which favors one archaea over another.
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