Riverside Geyser, Yellowstone National Park, Wyoming
You may wish to print a copy of the lecture outline (minus the illustrations) and you have two options:
As emphasized previously, water is a remarkable compound. This chapter focuses on water beneath the surface which is part of the groundwater system. Caves and caverns often offer spectacular evidence of some of the influences of ground water. Avoid having to get wet in the dark and explore Mammoth Cave at the link in the Chapter Heading.
"A geyser is a hot spring that periodically erupts throwing water into the air. Seems simple and common enough, but in fact, geysers are extremely rare. In all of the world, there are only a total of seven hundred geysers. Conditions must be just right for geysers to be present. Three components must be present for geysers to exist: an abundant supply of water, an intense source of heat, and special plumbing."
"Your encounter with Carlsbad Caverns National Park begins in the Chihuahuan Desert of the Guadalupe Mountains. But beyond the somewhat familiar surroundings of rugged mountains and broad plains is another world. Away from the sunlight, away from the flowering cactus, away from the songs of the desert birds and the howl of the coyote, lies the celebrated underground world of Carlsbad Cavern. "
Learning about geology from a computer screen is only half as fun as enjoying it in the field!
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Copyright by John C. Butler, July 29, 1995