Monday, January 10, 2011

The world

We talked a lot about using renewable energy to care for our planet, but really do we know of the Earth? The answer may be quite varied, covering according to different concepts and forms of analyzing it, so try to be brief and provide an answer to this simple question.

This article will seek to provide a geological analysis of what The world, defining initially to geology as science which performs an analysis of the exterior and interior of the Earth form, the nature of the materials that comprise and their training, in addition to changes or alterations that has undergone since its origin, and placement of them today.

Among its main characteristics we highlight 6371 km RADIUS and its temperature with a gradient of 1 ° C for every 33 meters, with a temperature in the Centre of the estimated land between 2200 ° c 4400
With regards to its conformation, enumerate various "layers" differentiable characteristics:

Litósfera: 5 kilometres of basalt and 65 kilometers of Rock Granítica Pirósfera: 1500 to 3000 kilometers, rocks rich in iron and aluminum silicate, at a temperature of 2000 ° C Barísfera: rocks of nickel and iron, comprising 3000 km, 4000 ° C temperature

These layers float on the core (molten rock) is located downtown, and perform various movements that give rise to the following phenomena:

Magmatismo:Blend until cooling magma vulcanismo: the molten rock (called Ígnea) rises by fissures in the form of magma) or volcanoes (lava) maremoto: violent shocks to the sea level terremoto: vibrations on the rocks Tectonismo: movement of the solid parts of the Earth, which gives rise to displacement (fault) or deformations (faulting) metamorfismo: alteration suffered by rocks, generating recristalizaciones combined effect of heat and pressure.






In turn, these movements can be classified in Epirogénicos and Orogénicos.
Epirogénicos:Rising or sinking continents, or large parts thereof, whose vertical forces fractured rocks Orogénicos: Craps at a given time, give rise to the formation of mountains, volcanic and seismic and generate a horizontal compression with movements ondulamiento and folding activity generation systems.



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