Earth crust


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 maritime level, the crust will have a measurement of approximately 6 kilometers in terms of its thickness, while in the most superficial zones where the mountains rest, 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 lighter compounds will be found on the surface and the heavier 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 constantly floating on different materials of a pasty nature, 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 are originated, such as folding of the plates, earthquakes, volcanoes, cracks in the earth and so on.

There are two types of terrestrial crust: oceanic crust, characterized by being thinner and in it three levels can be identified; On the other hand, there is the continental crust that has less homogeneity among its elements that make it up and has a lower density with respect to the oceanic crust.