How are volcanoes formed?

The volcanoes they are conduits that are in the Earth, and that communicate the terrestrial surface with the hottest and inner layers of the planet.

It is one of the surface and subsurface manifestations of the internal energy of the planet, and their main characteristic is the possibility of generating volcanic activity, represented by the rise of the gases and the fluids from the interior of the earth to the earth's crust.

Dormant, active and extinct volcanoes

The process by which the volcano can communicate with the outside is called eruption, and can include events of very strong destructions for the society that lives around the volcano.

Structure and parts of the volcano

The temperature and the Pressure of volcanoes increases according to the deepest position, and it can be reported temperatures of around 5000 ° C, which gives the typical characteristic of volcanoes to be very hot.

Beyond these three sectors, the different parts of the volcano's structure are distinguished:

1. Volcanic cone. Formed by the pressure of magma as it rises.
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2. Magmatic chamber. Bag found inside the earth, formed by minerals and rocks in a liquid state.
3. Crater. Mouth through which the rash can occur.
4. Fumarole. Gas emissions in lavas.
5. Wash. Magma that rises reaching the surface.
6. Magma. A mixture of solids, liquids and gas that, when rising, give rise to lava.

How are volcanoes formed?

The primary reason that founds the existence of volcanoes is the division into fourteen plates that has the most superficial layer of the earth: African, Antarctic, Arabian, Australian, Caribbean, Scottish, Eurasian, Philippine, Indian, Juan de Fuca, Nazca, Pacific, North American and South American.

Among all these plates make up the Earth crust, and on the edges of them the external manifestations of the inner activity of the earth are concentrated, especially volcanoes and earthquakes. Based on this, volcanoes can have three origins:

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