| |
| | Geyser Summary |
 | | Geysers differ from noneruptive hot springs in their subterranean structure; many consist of a small vent at the surface connected to one or more narrow tubes that lead to underground reservoirs of water. |
 | | There are two types of geyser; Fountain geysers erupt from pools of water, typically in a series of intense, even violent, bursts; and cone geysers which erupt from cones or mounds of siliceous sinter (also known as geyserite), usually in steady jets that last anywhere from a few seconds to several minutes. |
 | | Old Faithful, perhaps the best-known geyser at Yellowstone National Park, is an example of a cone geyser. |
| www.bookrags.com /Geyser (2253 words) |
|