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Wells and Springs

Wells and Springs
Hot springs and Greysers

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    Earth science Earth science Document Transcript

    • WELLS & SPRINGS A spring is a component of the hydrosphere. Specifically, it is any natural situation where water flows to the surface of the earth from underground. FORMATION A spring may be the result of karst topography where surface water has infiltrated the earth’s surface. Karst topography is a geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone, or dolomite but also gypsum.
    • Hot Springs and Geysers HOT SPRINGS A hot spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.
    • GEYSERS A geyser is a vent in Earth's surface that periodically ejects a column of hot water and steam. Even a small geyser is an amazing phenomenon; however some geysers have eruptions that blast thousands of gallons of boiling hot water up to a few hundred feet in the air. Conditions Required for a Geyser Geysers are extremely rare features. They occur only where there is a coincidence of unusual conditions. Worldwide there are only about 1000 geysers and most of those are located in Yellowstone National Park (USA). Where are Geysers Found? Most of the world's geysers occur in just five countries: 1) United States 4) New Zealand 2) Russia 5) Iceland
    • 3) Chile Countries With Many Active Geysers 1) United States - Yellowstone National Park 2) Russia - Dolina Geiserov 3) Chile - El Tatio 4) New Zealand - Taupo Volcanic Zone 5) Iceland - Many locations How Do Geysers Work? To understand how a geyser works, you must first understand the relationship between water and steam. Steam is a gaseous form of water. Steam is produced when water is heated to its boiling point. When water converts into steam at surface conditions it undergoes an enormous expansion because steam occupies 1600 times as much space as the original volume of original water. The eruption of a geyser is powered by a "steam explosion" when boiling hot water suddenly expands into the much more voluminous steam.