File:Upper Terraces of Mammoth Hot Springs.jpg
Summary
Hot water is the creative force of the terraces. Even though <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> lie north of the caldera ring-fracture system, a fault trending north from Norris Geyser Basin, 21 miles (34 km) away, may connect <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> to the hot water of that system. A system of small fissures carries water upward to create approximately 50 hot springs in the <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> area. Another necessary ingredient for terrace growth is the mineral <a href="https://en.wikipedia.org/wiki/calcium_carbonate" class="extiw" title="w:calcium carbonate">calcium carbonate</a>. Thick layers of <a href="https://en.wikipedia.org/wiki/sedimentary" class="extiw" title="w:sedimentary">sedimentary</a> <a href="https://en.wikipedia.org/wiki/limestone" class="extiw" title="w:limestone">limestone</a>, deposited millions of years ago by vast seas, lie beneath the Mammoth area. As ground water seeps slowly downward and laterally, it comes in contact with hot gases charged with <a href="https://en.wikipedia.org/wiki/carbon_dioxide" class="extiw" title="w:carbon dioxide">carbon dioxide</a> rising from the <a href="https://en.wikipedia.org/wiki/magma" class="extiw" title="w:magma">magma</a> chamber. Some <a href="https://en.wikipedia.org/wiki/carbon_dioxide" class="extiw" title="w:carbon dioxide">carbon dioxide</a> is readily dissolved in the hot water to form a weak carbonic acid solution. This hot, acidic solution dissolves great quantities of <a href="https://en.wikipedia.org/wiki/limestone" class="extiw" title="w:limestone">limestone</a> as it works up through the rock layers to the surface hot springs. Once exposed to the open air, some of the carbon dioxide escapes from solution. As this happens, limestone can no longer remain in solution. A solid mineral reforms and is deposited as the travertine that forms the terraces. (The image caption was taken from <a rel="nofollow" class="external text" href="http://mms.nps.gov/yell/features/mammothtour/index.htm">here</a>.)
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:57, 4 January 2017 | | 2,100 × 1,493 (2.17 MB) | 127.0.0.1 (talk) | Hot water is the creative force of the terraces. Even though <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> lie north of the caldera ring-fracture system, a fault trending north from Norris Geyser Basin, 21 miles (34 km) away, may connect <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> to the hot water of that system. A system of small fissures carries water upward to create approximately 50 hot springs in the <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a> area. Another necessary ingredient for terrace growth is the mineral <a href="https://en.wikipedia.org/wiki/calcium_carbonate" class="extiw" title="w:calcium carbonate">calcium carbonate</a>. Thick layers of <a href="https://en.wikipedia.org/wiki/sedimentary" class="extiw" title="w:sedimentary">sedimentary</a> <a href="https://en.wikipedia.org/wiki/limestone" class="extiw" title="w:limestone">limestone</a>, deposited millions of years ago by vast seas, lie beneath the Mammoth area. As ground water seeps slowly downward and laterally, it comes in contact with hot gases charged with <a href="https://en.wikipedia.org/wiki/carbon_dioxide" class="extiw" title="w:carbon dioxide">carbon dioxide</a> rising from the <a href="https://en.wikipedia.org/wiki/magma" class="extiw" title="w:magma">magma</a> chamber. Some <a href="https://en.wikipedia.org/wiki/carbon_dioxide" class="extiw" title="w:carbon dioxide">carbon dioxide</a> is readily dissolved in the hot water to form a weak carbonic acid solution. This hot, acidic solution dissolves great quantities of <a href="https://en.wikipedia.org/wiki/limestone" class="extiw" title="w:limestone">limestone</a> as it works up through the rock layers to the surface hot springs. Once exposed to the open air, some of the carbon dioxide escapes from solution. As this happens, limestone can no longer remain in solution. A solid mineral reforms and is deposited as the travertine that forms the terraces. (The image caption was taken from <a rel="nofollow" class="external text" href="http://mms.nps.gov/yell/features/mammothtour/index.htm">here</a>.) |
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