The Economic Value of Igneous Activity.

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The Economic Value of Igneous Activity.

Geothermal Activity.

   

Geothermal energy is produced by steam and hot water reservoirs under but near the surface of the Earth. It can be used for heating or power generation. This energy source can become locally important in those areas where geothermal activity takes place, e.g. in Iceland, Italy, and in the United States, where the largest plant is at The Geysers in Sonoma County, Calif. The corrosive action caused by the high salt content of the water and the deposit of chemicals on the piping system lead to high construction and maintenance costs.

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Impact On Soil Fertility and Agriculture

   

     Clay particles form during the weathering of igneous rocks, such as granite and basalt. The particles are so small that they can be easily carried long distances by water or the wind. A handful of clay picked up anywhere may contain particles formed at different times from different igneous rocks.

Tourism

Igneous can help the local economy by creating a tourist attraction, for example the Cascade Range extends about 700 miles from northern California through Oregon and Washington into British Columbia. The crest of the range ...

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