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Tectonics It is the branch of geology that studies the movement of the layers of the earth's crust, due to the forces of the interior of the earth (endogenous).
It is also intended to study the dynamism of the forces that interfere with the movement of the layers of the earth's crust. Most of the time, as a result of these forces, tectonic plates, folds, faults, fractures or entrainment sheets occur.
The tectonics describes geometrically the deformations of the earth's crust and analyzes the different theories that seek to explain its forming mechanisms. Volcanism and seismology These are areas of knowledge closely related to tectonics.
Volcano is a geological formation consisting of a fissure in the earth's crust, over which a cone formed by volcanic material accumulates.
Above this cone is a kind of concave chimney called the crater. The cone is formed by the deposition of molten and solid matter, which flows or is expelled through the chimney from within the Earth.
The study of volcanoes and related phenomena is called volcanology
The energy of active volcanoes results from processes linked to the movement of the earth's crust plates. In addition, volcanoes tend to be on the borders of the most important plates. Some volcanoes are in a state of permanent eruption, at least in the geological present, such as the Belt / Fire Circle chain, which surrounds the Pacific Ocean.
Pacific Belt / Fire Circle
Many other volcanoes, such as Vesuvius, located in the Gulf of Naples, Italy, remain in a state of moderate activity for longer or shorter periods and then rest or fall asleep for months or years.
Aerial view of Vesuvius