A volcano that .
erupted many years ago but now has no sign of life is called dormant. If scientist feel that .
a particular volcano will not ever erupt again they term it extinct.
Volcanic Structure.
.
There are four main parts of a volcano. The vent is the channel that gas, ash and .
Rock is ejected. Secondly, the magma chamber that hold the magma. Thirdly, the cone is .
simply the mountain that is formed around the vent. Finally, the crater is a bowl shaped .
depression surrounding the vent.
.
There are many unseen forces beneath a volcano that alter rock below the crust to .
cause a volcano, and completely change the landscape of the earth. A volcano effects the .
earth in many different ways. Of course, the most obvious is the mountain formed on the .
surface.
.
One of the most dramatic changes to the geological features of the earth is a .
caldera. A caldera is a huge bowl-shaped crater in the ground at least 2 miles in diameter. .
Scientists assume that these massive craters are formed at the end of a volcanoes life once .
the magma chamber is emptied. This causes the volcano to collapse under its own .
weight. The second deepest lake in the United States, Crater Lake, was formed in a .
caldera. It is approximately six miles across and two thousand feet at the deepest point. .
.
An interesting formation underneath a volcano is a lava tunnel. Lava tunnels start .
out as horizontal lava channels which form when the surface of a large lava flow hardens .
but the lava beneath remains molten and continues to flow. At the end of the eruption the .
lava channel is empty and then referred to as a lava tunnel. The tunnels can be anywhere .
from a few inches to several yards in diameter. The Kasamura tunnel is the largest .
known lava tunnel. It is near the Kilauea volcano in Hawaii, and it twists for more than .
six miles beneath the surface.
.
An igneous intrusion is formed when the intense pressure of the rocks above a .
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. ...
