What is the content of The Earth?
Explanation of the Composition of the Earth's
Dear Steemit and steemian - We all live on this earth. It turns out what we have been under, step on, climb, sit on it then the skin of the earth. The width of the eye we see that the new skin of the earth only. Then what is the earth itself? What does it look like? What are the compositions? What is the diameter of the earth? Well it seems a lot yes yes question. Let's discuss one-on-one. Let's try to deepen one of the lessons in geology.
1. The Earth's Core
Located at the center of the earth. This is the center of the earth, its midpoint. The earth's core has a thick depth of 2,883 km to the center of the Earth (6371 km), has a density ranging from 9.5 g / cc near mantle and enlarged towards the center up to 14.5 g / cc. The mixtures possessed by the earth's core can be estimated from large density elements such as nickel (Ni) and iron (Fe) or often referred to as NiFe coatings. The core of the earth is divided into two, namely the inner core and the outer core. These two parts are separated by Lehman Discontinuity.
avy, and very hot outside (outer core) which has a depth of 2883-5140 km and liquid and very hot.
2. Mantle
is a layer that envelops the core of the earth. Earth's coat and core is limited by Gutenberg Discontinuity. This coat has a large magnesium composition (Mg) and is the largest part of the earth with 82.3% of the total earth's volume and 67.8% of the total mass of the earth. Well after thought big also yes part of this earth mantle. The earth mantle has a thickness of 2,883 km with a density of about 5.7 g / cc near the core and 3.3 g / cc near the earth's crust. The earth's coat is divided into two: the upper coat, and the lower mantle. The top coat has plastic properties up to semiplastis and has a depth of 400 km. The coat on the top of the pedestal of oceanic crust that is solid, wherein the upper mantle along the top of the crust to form a unity called the lithosphere. While the bottom baigan coat that is plastic and semi plastic is called Asthenosphere.
3. The Crust
is the outermost part of the earth's layers. This part is what we often step on and sit on. Do not be equated with egg crust yes. So I'm hungry. This crust has a thickness of 5-80 km. Its thickness is uneven resulting in elevation differences between continental crust and oceanic crust. In the continent region has a crust with a thickness of> 50 km, while in the ocean region has a crust with a thickness of <5 km. Earth's crust and mantle is limited by Mohorovicic Discontinuity. The crust has an average density of 2.7 g / cc. The earth's crust is a relatively cold, brittle, and rigid solid with a lower density, so it can be seen that the earth's crust floats above the mantle.
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