Emerald Spring
Emerald Spring is a hot spring located in Norris Geyser Basin of Yellowstone National Park.
History
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0a/Emerald_spring.jpg/220px-Emerald_spring.jpg)
Originally named Emerald Geyser by Philetus Norris, park superintendent (1877–1882) because of its color, the name was later officially changed to Emerald Spring by the U.S. Geological Survey in 1930.[3]
In 1892 Robert W. Wood, an American optical physicist, used the spring for a prank. He stealthy dissolved a pint of fluorescein in the pool to surprise several witnesses with unusually colorful water.[4]
Characteristics
Emerald Spring is 27 feet (8.2 m) deep.[5] The water temperature in the spring is around 83.3 °C (181.9 °F).[1] The spring gets its name from the emerald green color of the water created by sunlight filtering through the water, giving the light a blue color, and reflecting off the yellow sulphur creating the green hue.[5]
While Emerald Spring is a mostly calm pool, which usually only has a few bubbles rising to the surface, it does experience periods of turbidity and small 3-foot (1-m) high eruptions. In 1931, Emerald experienced a period of extremely vigorous activity with eruptions measuring 60 to 75 feet (18.2–22.9 m) in height.[6]
References
- ^ a b c "Emerald Spring". Yellowstone Geothermal Features Database. Montana State University.
- ^ "Emerald Spring". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
- ^ Haines, Aubrey L. (1996). Yellowstone Place Names-Mirrors of History. Niwot, CO: University Press of Colorado. p. 148. ISBN 0-87081-383-8.
- ^ Seabrook, W. (1941). "Alarms, excursions, and explosions at Johns Hopkins ending in early marriage and a job at the University of Chicago". Doctor Wood, Modern Wizard of the Laboratory. New York: Harcourt Brace.
- ^ a b "Emerald Spring". Yellowstone Online Tours. National Park Service. Archived from the original on 2010-05-18.
- ^ "Emerald Spring". Geyser Observation and Study Association (GOSA).
External links
- Ball, James W.; Nordstrom, D. Kirk; McCleskey, R. Blaine; Schoonen, Martin A. A.; Xu, Yong (2001). "Water-Chemistry and On-Site Sulfur-Speciation Data for Selected Springs in Yellowstone National Park, Wyoming,1996-1998" (PDF). U.S. Geological Survey. p. 26.
- v
- t
- e
- Big Alcove Spring
- Echinus Geyser
- Emerald Spring
- Steamboat Geyser
![Steamboat Geyser](http://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Steamboat_Geysir_Yellowston.jpg/90px-Steamboat_Geysir_Yellowston.jpg)
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- Echo Peak
- Gibbon Falls
- Gibbon River
- Grebe Lake
- Firehole Falls
- Firehole River
- Madison River
- Mount Haynes
- Mount Holmes
- Mount Jackson
- National Park Mountain Purple Mountain
- Obsidian Cliff
- Virginia Cascades
- West Yellowstone, Montana
- List of Yellowstone National Park related articles
Media related to Norris Geyser Basin at Wikimedia Commons