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Articles - Geyser (Site not responding. Last check: 2007-10-30) |
 | | Geyser activity, like all hot spring activity, is caused by surface water gradually seeping down through the ground until it meets rock heated by magma. |
| | 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. |
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