Emerald Spring

Emerald Spring

Emerald Spring is a boiling hot spring located in Norris Geyser Basin of Yellowstone National Park.

Emerald Spring is 27 feet (8 m) deep. [cite web | date = December 22, 2004 | url = http://nps.gov/yell/tours/norris/emerald.htm | title = Emerald Spring | work = Norris Geyser Basin Tour | publisher = National Park Service | accessdate = May 15 | accessyear = 2006] The water temerpature in the spring is around 172°F (78°C). [cite web | last = Ball | first = James W. | coauthors = Nordstrom, D. Kirk; McCleskey, R. Blaine; Schoonen, Martin A. A.; and Xu, Yong | year = 2001 | url = http://wwwbrr.cr.usgs.gov/projects/GWC_chemtherm/pubs/ofr%2001-49.pdf#page=31 | title = Water-Chemistry and On-Site Sulfur-Speciation Data for Selected Springs in Yellowstone National Park, Wyoming,1996-1998 | format = PDF | publisher = USGS | accessdate = May 15 | accessyear = 2006] The spring gets its name 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. [cite web | url = http://nps.gov/yell/tours/norris/emerald.htm | title = Emerald Spring]

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 measuing 60 to 75 feet (18.2–22.9 m) in height. [cite web | year = 2006 | url = http://geyserstudy.computerpoint.net/geyser.aspx?pGeyserNo=EMERALDSPRING | title = Emerald Spring | work = Geyser Observation and Study Association (GOSA) | accessdate = May 22 | accessyear = 2006]

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