Concept in Definition ABC

Under the term geosphere, the different material layers of planet Earth that are located between the atmosphere and the core planetary. This set of geological layers contains elements that are very different from each other in terms of characteristics and conditions such as the temperature, matter, density, the Energy, etc.

The geosphere of our planet can be divided into five main portions. Seen from the outside to the inside of the planet, we can say that the atmosphere is the first of them, composed of different gases and located above the surface. The atmosphere is what connects the land surface with outer space. Then the surface or Earth crust which is the best known to the human being, the one (and only) in which he can live and develop his activities permanently and naturally. The earth's crust or surface varies in its essential characteristics in the different spaces both with regard to the material that composes it, its density, its temperature and humidity, etc.

The next geological layers of the earth are the underground layers to which the human being no longer has access in terms of habitat permanent or natural. They are the mantle (located 40 to 70 km below the crust), the outer core (2,900 km) and the inner core (5,140 km). The latter represents the smallest portion of matter among the different geological layers and has the highest temperature recorded on the planet: around 6000 degrees Celsius.

Matter is found in various forms in the different layers of the geosphere. While in some we find it in solid form (such as with the rocks of the earth's crust or with the inner core, which is remains in a solid state as a consequence of the strong pressure exerted on it by the rest of the layers), in others it appears in the form gaseous (such is the case of the atmosphere) and others in liquid form (such as liquid or magma that exists in the mantle or in the core external).