A volcano is a vent in the earth's crust through which magma (molten rock) and .
The magma, once it reaches the surface, is called lava. The lava forms a .
hill around the vent or opening. The lava can flow out as a viscous liquid, or it may .
explode from the vent as solid or liquid particles.
Types of Volcanoes.
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There are three different types of volcanoes that can be formed around a vent. The .
ways to identify each type are what it is composed of and what into what shape it is .
formed. The shield volcano, which takes its name form its resemblance to the shields of .
early Germanic warriors, is a quietly erupting flow that forms gently slopping mountains. .
The dome that is formed over a period of time involving multiple one to ten meter thick .
lava flows. This type of volcano is found mostly in Hawaii and Iceland.
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The second type of volcano dome formation is the cinder-cone. This volcano has .
high gas content and high viscosity (the thickness of the lava), therefore producing a .
much more explosive eruption than that of the shield volcano. These volcanoes blew .
volcanic bombs and cinders into the air which land beside the vent to form a step-sided .
cone. Since these volcanoes consist of loose materials they do not grow as large as other .
volcanoes. Most cinder-cone volcanoes are formed by a single eruption.
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The third type of volcano is the composite volcano. It is the tallest of all the .
different types. It is a combination of shield and cinder-cone volcanoes. It goes through .
a cycle of quiet eruptions followed by an explosive eruption of extremely viscous lava. .
The fluid lava forms an erosion resistant shell over the existing debris forming a strong, .
deep-sided volcanic cone.
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A volcano can also be classified by how active it is or has been in the past. .
Geologist use the terms: active, dormant, and extinct to classify how active it is. If a .
volcano has erupted within the past fifty years it is referred to as active.
These are words that most people associate with volcanoes. But some good effects can come out of volcanoes. ... Out of the 550 of the world's active volcanoes, the world's largest active volcano is Mauna Loa, it is one of the Hawaiian islands. ... Then there are underwater volcanoes and above ground volcanoes. ... This is the only volcano found on the planet mars. ...
These are words that most people associate with volcanoes. But some good effects can come out of volcanoes. ... Out of the 550 of the world's active volcanoes, the world's largest active volcano is Mauna Loa, it is one of the Hawaiian islands. ... Then there are underwater volcanoes and above ground volcanoes. ... This is the only volcano found on the planet mars. ...
How are volcanoes formed? Are there different types of volcanoes? ... Volcanoes are formed in different ways. ... These consist of the shield volcanoes, strato (composite) volcanoes, and caldera complex volcanoes. ... It is classified as a complex volcano, so it is an explosive and very steep strato volcano. ...
The term volcano refers to the opening or vent through which the molten rock and associated gases are expelled. ... Instead, volcanoes are built by the accumulation of their own eruptive products. ... Geologists have generally grouped volcanoes into four main kinds: cinder cones, composite volcanoes, shield volcanoes, and lava domes. ... When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt(explode). ... With many volcanoes erupting only every few hundred or thousand years, it's not possible to monitor every site. ...
This report features what are volcanoes, how are they formed and where are they located. It also has a recent occurrence of a volcano eruption and how did the community react to it. Volcanoes are mountains formed out of lava and ashes through an opening in the earths crust. ... After many eruptions volcanoes expand. There are two ways that volcanoes are formed. ...
Some of the most famous composite volcanoes include Mount St. ... At 6,893 meters in elevation, not only is it the highest active volcano in the world, but Ojos del Salado is the highest active volcano in Chile and the second highest active volcano in the Southern and Western Hemispheres. ... The Mayon Volcano is 2,462 meters in elevation and is a symmetrical composite volcano. ... Another harsh eruption from the Mayon Volcano was in 1993. ... Interesting facts such as how high a volcano's elevation is or how many deaths it caused makes a volcano well-known to the public eye. ...
A volcano can erupt many times in its lifetime. ... There are three major types of volcanoes, cinder cone volcanoes, composite volcanoes, and shield volcanoes. ... The second major type of volcano, the composite volcano, in contrast to the cinder cone can grow much larger. One famous example of a composite volcano is Mt. ... The third type of volcano is the shield volcano. ...
This cone is what we know as a volcano. There are several ways in which a volcano can form, just as there are several different kinds of volcanoes. Among the different kinds of volcanoes are shield volcanoes, cinder cones, and composite volcanoes. The most majestic of the volcanoes are composite volcanoes, also known as strato-volcanoes. ... There are two types of shield volcanoes, Hawaiian volcanoes and Icelandic. ...
Some volcanoes are more active than others. ... Fuji are all examples of strata volcanos. Shield volcanoes are made of thousands of thin lava flows. ... Shield volcanoes are the largest volcanoes. ... After this, hot springs may form from the volcano. eventually volcanic heat will disappear, and cool water will issue from the volcano and the ground in it's vicinity. ...
