Sunday, December 7, 2008

Volcanoes and tropics

A volcano eruption occurs in places where the tectonic plates are not proper. A volcano erupts through by opening in the earths surface. They can also be found where there is a thinning of the earth’s surface. Mantle plumes are also a reason for the volcanoes. The magma which is erupted from the volcano consists of 50%-60% of silica. Researchers have found in the recent study that the volcanic eruptions have cooled the tropics by throwing the particles high in the sky so that the sunlight gets reflected and results in the reduction of the heat of the planet.

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