When tectonic plates collide, massive rocks underground deform and trigger a build-up of temperarure and pressure. The high temperature and pressure results in melting of rocks, producing magma.
Inside the volcano is a magmachamber. Molten rock inside this chamber is forcefully driven out by intense heat and pressure. The release of magma from the crater is called a VolcanicEruption. The magma that flows out on the surface is called lava. When a volcano erupts, it throws out lava together with gases, rocks, and ashes. A volcanic eruption can be explosive or non-explosive.
What are the effects of Volcanic Eruption?
Here are some of good and bad effects of a volcanic eruption:
During a volcanic eruption, very hot lava flow can burn anything in its path. The mudflow or lahar can cause landslides, flooding, and immense damage to buildings, and farms. Volcanic ash and dust released in the air can irritate the lungs and cause health problems. Very strong eruptions can also trigger earthquakes.
Despite the destruction it causes, a volcanic eruption can also be beneficial. The pyroclastic materials from a volcanic eruption can make soil fertile. Pyroclastic materials consist of lava, ashes, volcanic glass, and rocks. The heat inside the volcano can cause gases to come out through holes or vents called fumaroles. These fumaroles can provide geothermal steam to generate electricity. Eruptions can also produce industrial materials like pumice and sulfur. Pumice is used in grinding and polishing stones while sulfur is used in making the matches and firecrackers. The rocks from volcanoes also help scientists study the interior of the Earth.
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Volcanic Eruption
How does volcanic eruption occur?
When tectonic plates collide, massive rocks underground deform and trigger a build-up of temperarure and pressure. The high temperature and pressure results in melting of rocks, producing magma.
Inside the volcano is a magma chamber. Molten rock inside this chamber is forcefully driven out by intense heat and pressure. The release of magma from the crater is called a Volcanic Eruption. The magma that flows out on the surface is called lava. When a volcano erupts, it throws out lava together with gases, rocks, and ashes. A volcanic eruption can be explosive or non-explosive.
What are the effects of Volcanic Eruption?
Here are some of good and bad effects of a volcanic eruption:
During a volcanic eruption, very hot lava flow can burn anything in its path. The mudflow or lahar can cause landslides, flooding, and immense damage to buildings, and farms. Volcanic ash and dust released in the air can irritate the lungs and cause health problems. Very strong eruptions can also trigger earthquakes.
Despite the destruction it causes, a volcanic eruption can also be beneficial. The pyroclastic materials from a volcanic eruption can make soil fertile. Pyroclastic materials consist of lava, ashes, volcanic glass, and rocks. The heat inside the volcano can cause gases to come out through holes or vents called fumaroles. These fumaroles can provide geothermal steam to generate electricity. Eruptions can also produce industrial materials like pumice and sulfur. Pumice is used in grinding and polishing stones while sulfur is used in making the matches and firecrackers. The rocks from volcanoes also help scientists study the interior of the Earth.