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Sulphar Mound Geysir mit kleinem Strahl im Yellowstone NP
Sonnenuntergang über dem Lower Geysir Basin
websize photograph
Titel: Fountain Paint Pots in the evening in the Yellowstone NP

In the Lower Geysir Basin, nordwest of Old Faithful, Yellowstone NP, Wyoming, USA.


The Fountain Paint Pots are named for the reds, yellows and browns of the mud pots in this area. The differing colors are derived from oxidation states of the iron in the mud. As with hot springs, the heat in the caldera forces pressurized water up through the ground, causing the mud to boil. The bubble action in the mudpots varies with the seasons. In the early summer, the mud is watery from the high water table due to rain and snow melt. By the end of summer, the mud is much thicker as the water table drops.

Schlüsselwörter: water, mud
Image sizes: 541*818px, 278kb
Origin: Scanned from analog diapositive slide
Date/Time: 19960707-000055
Destination coordinates;WGS84 LONG -110.806227922°, LAT 44.5505626295°
Author: André M. Winter
Photo copyright: This photograph is copyrighted (©) by André M. Winter and others. A free permissions for re-use may be given for non-commercial purposes. Commercial use requires a license. Contact André M. Winter for any kind of use. This extended copyright notice applies in all cases. Infringements always will be persecuted worldwide. Legal court: Innsbruck, Austria, E.U.
Text copyright: The description of this photograph (or parts of) is based on this article of the free Wikipedia encyclopedia and are covered by the GNU Free Documentation License (GFDL). Authors are named on the Wikipedia page.
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