The earth's crust is the outer layer composed mainly of rocks belonging to the earth, depending on its location different levels of thickness can be indicated, if it is at the sea level, the crust will have a measurement in terms of its thickness of approximately 6 kilometers, while in the shallower areas where the mountains lie, the crust can measure approximately 72 kilometers.
The crust is made up of different layers whose components vary in terms of their density or weight, in this way the lightest compounds will be found on the surface and the heaviest materials will be found below the light ones, one of the so many elements considered as light are, potassium, oxygen, calcium, sodium and silicon, therefore they are found in the most superficial regions.
The plates that are originating the earth's crust, are in constant floating on different materials of a pasty character, the plates move slowly with each other, previously it was a single plate but it was divided giving rise to the different continents known until today, Due to the generation of these movements adding the different pressures to which the lower plates are subjected, different phenomena originate, such as folding of the plates, earthquakes, volcanoes, cracks in the earth and ends.
There are two types of terrestrial crust: oceanic crust, characterized by being thinner and in it the identification of three levels can be carried out; On the other hand, there is the continental crust that has less homogeneity between its elements that make it up and has a lower density compared to the oceanic crust.
