What Is The Outer Core Of The Earth
Camila Farah
The outer core of the earth is a liquid layer about 2 266 km thick composed of iron and nickel which lies above the earth s solid inner core and below its mantle.
The outer core is the second to last layer of the earth. The outer core is responsible for earth s magnetic field. It is believed to be between 250 to 400 kilometers in diameter. The transition between the inner core and outer core is located approximately 5 150 km beneath the earth s surface.
In the outer core they form an alloy. Iron and nickel are common metals found across the planet and these metals exist in solid form on the earth s surface. Both the outer and inner cores are made almost entirely of nickel and iron. The outer core consists of hot lava that is comprised mostly of iron and nickel.
It is the only liquid layer and is mainly made up of the metals iron and nickel as well as small amounts of other substances. Its outer boundary lies 2 890 km beneath the earth s surface. As earth spins on its axis the iron inside the liquid outer core moves around. In this section you will learn about how earth s magnetic field is created how hot it is how thick the outer core is and a few interesting facts about the outer core.
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The outer core of the earth is a fluid layer about 2 400 km 1 500 mi thick and composed of mostly iron and nickel that lies above earth s solid inner core and below its mantle. The outer core is the middle layer of the earth s three layers and is located about 1 800 miles below the earth s crust the top most surface of the earth. This layer is so hot that all metals in it are in a liquid state. Its outer boundary lies 2 890 km 1 800 mi beneath earth s surface.
It stretches to about 2 300 kilometers 1 400 miles. The outer core surrounds the inner core and borders the mantle which is the third region and the closest region to the earth s crust. The outer core is a liquid layer that has a width of 1 430 miles and a depth of 2 100 miles. The inner core is the hottest region and the innermost region of the earth.
The outer core of the earth is a liquid layer of iron and nickel 2 890 kilometers 1 400 miles beneath the surface of the earth. It is a magma like liquid layer that surrounds the inner core and creates earth s magnetic field.
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