How volcanoes are formed?

How volcanoes are formed?

How volcanoes are formed? A volcano is a geological structure where magma rises from inside the earth. These usually have their origin in the limits of the tectonic plates, which are the result of their movement, although there are also so-called hot spots, that is, volcanoes located where there is no movement between the plates. Knowing how volcanoes are formed is somewhat more complicated and, therefore, we are going to explain it in this article.

A volcano is an opening or rupture in the earth's crust through which magma or lava is discharged from the interior of the earth in the form of lava, volcanic ash, and gas at high temperatures. They usually form on the edge of tectonic plates.The formation of volcanoes has different processes:

- Volcanoes with continental boundaries: when a subduction process occurs, oceanic plates (higher density) subduct continental plates (less dense). In the process, the subducted material melts and forms magma, which rises through the cracks and is expelled outside.

- Mid-ocean dorsal volcano: volcano formed when tectonic plates separate and form an opening through which magma produced in the upper mantle is driven by conventional ocean currents.

- Hot Spot Volcanoes: Volcanoes produced by rising columns of magma that cut through the Earth's crust and accumulate on the seafloor to form islands (like Hawaii).

Training conditions

In general terms, we can say that volcanoes can have different types depending on certain characteristics of their formation (such as the location or the exact process), but certain aspects of the volcanic formation are the basis of all volcanoes. The volcano is formed like this:

- At high temperatures, magma forms inside the earth.

- Climb to the top of the earth's crust.

- It erupts through cracks in the earth's crust and through the main crater in the form of eruptions.

- Pyroclastic materials accumulate on the surface of the earth's crust to form the main volcanic cone.


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