Journey through Earth's Layers: From Solid Crust to Molten Core

Categories: EarthNature

The Crust is the first and uppermost layer of the Earth. There is the Continental Crust which sits on top of the Oceanic Crust. This layer is made frequently from granite rocks and is solid. Continental Crust is approximately 32km. Below the Continental Crust is Oceanic Crust. It is about 8km. This part of the Crust is made from basalt rocks. The Crust is most of the lithosphere and is the coolest layer by far.

The Mantle is like silly putty consistency.

It is the largest layer of Earth sitting under the Crust. It is made roughly from silicon, oxygen, iron, and magnesium. The layer is composed almost entirely of magma - molten rock inside the earth. The mantle is about 2,900km thick. The mantle gets warmer with depth; the top of the mantle is about 870° C, and headed for the bottom of the mantle, and the temperature is about 2,200-3,700° C.

The Outer Core is the third layer. This level is basically liquid.

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Most of this layer is made from liquid nickel and iron. The Outer Core is about 2,200km thick. The temperature of the Outer Core is 4000-5000°C.

The Inner Core is the fourth layer of the Earth. The thickness of the Inner Core is 1,250km and mainly consists of iron, nickel, and some lighter elements (probably sulphur, carbon, oxygen, silicon and potassium. The temperature in the inner core is about 5000-6000°C, it is the hottest layer of the Earth. Because of the high pressure, the core is solid.

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If a person were to travel that deep, they would burn up within the Mantle before they ever came near the core. Even a ship that could withstand the high temperature, would be crushed by the great pressure.

References

Updated: Dec 12, 2023
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Journey through Earth's Layers: From Solid Crust to Molten Core. (2017, Feb 16). Retrieved from https://studymoose.com/layers-of-the-earth-essay

Journey through Earth's Layers: From Solid Crust to Molten Core essay
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