Yellowstone 2007
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The first stop on our “Work is Over Rated” Tour was Yelowstone National Park. Yellowstone’s most famous feature is probably the Old Faithful Geyser, but we found the hydrothermal pools to be at least as interesting. Yellowstone sits on a geological hotspot – hot magma sits just 3-8miles under the surface of the Earth. This compares to most places in North America where the magma is 20+ miles underground. The heat from below reaches up and heats the ground water, which then needs a place to go. Sometimes it finds an easy outlet and forms a steaming pool of water. When the super heated water can’t find an easy way to the surface, it needs to build up pressure before it can force its way out; this is where geysers come from. (more…)
Posted by Thom and Veronica |
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